JPH1051736A - Digital image data recorder and its method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a still image with a high image quality by keeping compatibility with existing standards of a digital video tape recorder without the use of an image memory of a large capacity. SOLUTION: Image data with number of pixels 720×480 are obtained respectively from CCDs 20, 40, and 60 and inputted to an image data conversion circuit 15. From the CCDs 20, 40, and 60, image data by two frames composed of 1st greed image data, 2nd green image data and red and blue image data of odd and even number rows are obtained and given to the image data conversion circuit 15. The CCDs 20, 40, and 60 and the image data conversion circuit 15 are controlled so as to record the red(R), green(G) and blue(B) image data onto a magnetic tape over 1st to 4th fields.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to digital video tapes.
The present invention relates to a digital image data recording device including a recorder (DVTR) and a method of recording digital image data in a DVTR.

[0002]

BACKGROUND OF THE INVENTION Digital video tape recorders use a solid-state electronic imaging device such as a CCD to image a subject, convert a video signal representing the subject image obtained by the imaging into digital image data, It is recorded on tape. A CCD used in an image pickup unit of a digital video tape recorder generally has 720 pixels in the horizontal direction × 480 pixels in the vertical direction = about 350,000 pixels. In a digital video tape recorder, frame recording in which one frame is composed of two fields and a frame image is recorded, and field recording in which a field image for each field is recorded is possible. In the case of frame recording, continuous photographing is performed at a predetermined shutter speed at a period of 1/30 second, and in the case of field recording, continuous photographing is performed at a predetermined shutter speed at a period of 1/60 second. 1 for both frame recording and field recording
The image data for a frame is recorded on a magnetic tape in a time period of 1/30 second and using a recording area of 10 tracks.

[0003] Thus, digital video tape
In a recorder, one frame of image data of digital image data obtained by photographing a subject using a 350,000 pixel CCD is generally recorded on 10 tracks in 1/30 second. Recording methods have become standard in the industry (for example, NIKKEI ELECTRONI
CS BOOKS "Data Compression and Digital Modulation" pp. 137-
152 page, see Nikkei BP, 1993).

On the other hand, to obtain a still image with a digital video tape recorder, image data for one field may be read from a magnetic tape and displayed. The image quality of an image picked up by a digital video tape recorder depends on the number of pixels of the CCD, and the higher the number of pixels of the CCD, the better. In order to obtain a high-resolution still image, it is sufficient to shoot using a CDD having a large number of pixels. However, in order to improve the image quality, CC with a large number of pixels
In order to record the image data obtained from this CCD on a magnetic tape using the D, a recording area of 10 tracks or more is required for recording the image data for 1/30 second or more, and a digital video tape recorder requires It will not meet the above standards.

[0005]

DISCLOSURE OF THE INVENTION An object of the present invention is to obtain a high-quality still image while maintaining compatibility with the above-mentioned existing standards of a digital video tape recorder. In particular, an object of the present invention is to obtain the above-described high-quality still image without using a large-capacity image memory capable of storing all image data obtained from a CCD having a large number of pixels.

According to a first aspect of the present invention, a subject is imaged using a solid-state electronic image sensor for generating image data having a data amount of n times (n is a positive integer of 2 or more) the frame unit image data. Is divided into 2n pieces of the field unit image data, (2n-1) pieces of the field unit image data are temporarily stored, and are sequentially read out for each field unit image data, and are not temporarily stored. One of the field unit image data and (2)
and (n-1) pieces of the field unit image data in n recording areas.

That is, in the first invention, the size of a recording area for recording frame-based image data representing an image of one frame on a recording medium and the recording time required for recording the frame-based image data are determined in advance. In the apparatus for dividing the frame unit image data into two field unit image data and recording the frame unit image data in the recording area, one frame of image is n times as large as the frame unit image data (n is a positive integer of 2 or more). A solid-state electronic imaging device for generating image data having a data amount of, an imaging unit for outputting image data representing a subject image obtained by imaging the subject using the solid-state electronic imaging device, and an image output from the imaging unit. Dividing means for dividing the divided image data into 2n pieces of the field unit image data, each representing one frame of image, Storage means for temporarily storing (2n-1) field-unit image data of the 2n field-unit image data divided by means, and (2n-1) field-unit image data stored in the storage means Reading means for sequentially reading image data from the storage means for each of the field unit image data, and the field unit image stored in the storage means out of 2n field unit image data divided by the dividing means One field unit image data excluding data and the (2n-1) field image data read from the storage unit by the reading unit are written into the n recording areas in n times the recording time. A recording control means for sequentially recording on a recording medium is provided.

[0008] The first invention also provides a recording apparatus suitable for the recording apparatus. That is, the size of a recording area for recording frame-based image data representing one frame of image on a recording medium and the recording time required to record the frame-based image data are determined in advance. In a device that divides the image into one field unit image data and records the image data in the recording area, image data of a frame amount of image data is generated by n times (n is a positive integer of 2 or more) the frame unit image data. Image data representing a subject image obtained by imaging a subject using an imaging means including a solid-state electronic imaging device is obtained, and the obtained image data is converted into 2n pieces of the field unit image data each representing one frame of image. And (2n-1) field unit image data of the 2n field unit image data divided The field unit image data is temporarily read out, and the stored (2n-1) field unit image data is sequentially read out for each of the field unit image data, and the field unit temporarily stored out of the 2n field unit image data is read out. 1 excluding image data
The above two field unit image data and the read (2
n-1) field image data are sequentially recorded on the recording medium over n recording areas with n times the recording time.

According to the above-mentioned current industry standard, the frame unit image data corresponds to the frame image data.
The field unit image data corresponds to field image data.

In the first invention, a solid-state electronic image sensor for generating image data having a data amount n times as large as the frame unit image data is used. Since a solid-state electronic imaging device having a large number of pixels is used, high-quality image capturing is performed at the imaging stage.

In order to record the image data which can produce a high-quality image obtained in this way while maintaining compatibility with a recording method according to the existing standard and without damaging the image data. According to the present invention, the image data obtained from the solid-state electronic image sensor is divided into 2n field unit image data. 2n obtained by division
The individual field unit image data is recorded on a recording medium according to a standard recording method.

In this way, the image quality of high-quality image data obtained by imaging is stored as it is, and recorded in a form conforming to the conventional standard. By synthesizing the image data recorded on the recording medium, a high-quality still image can be reproduced.

Particularly, in the first invention, the field image data divided into 2n pieces can be recorded on the recording medium without temporarily storing all of the 2n field image data in the storage means. Can be reduced.

According to a second aspect of the present invention, there are provided two solid-state electronic image pickup devices (for example, two horizontal image pickup devices) capable of generating image data having a data amount of unit image data and simultaneously reading out odd-numbered image data and even-numbered image data. (CCD having a transfer path).

That is, according to a second aspect of the present invention, an image of one frame is represented by unit image data having a predetermined image data amount, and the size of a recording area of the unit image data and the recording required to record the unit image data. In a digital video tape recorder for recording the unit image data sequentially on a recording medium at a period of the recording time, photoelectric conversion for generating image data of the data amount of the unit image data is performed. A first solid-state electronic imaging device in which the elements are arranged in a column direction and a row direction, and a photoelectric conversion device for generating image data of the amount of the unit image data is the same as the photoelectric conversion device of the first solid-state electronic imaging device. A second solid-state electronic imaging device which is spatially displaced by m / 2 pixels in the column direction and the row direction; The first solid-state electronic imaging device is driven so as to be exposed at the same time as the device, and the first solid-state electronic imaging device is obtained based on signal charges accumulated in the photoelectric conversion elements in one of odd and even rows. The first solid-state electronic imaging device is configured to simultaneously output image data and second image data obtained based on signal charges accumulated in the photoelectric conversion elements in the other of the odd and even rows. A first solid-state image pickup device driving means for driving the second solid-state image pickup device so as to be exposed simultaneously with the first solid-state image pickup device, and one of an odd line and an even line Third image data obtained based on the signal charges stored in the photoelectric conversion elements of the row, and third image data obtained based on the signal charges stored in the photoelectric conversion elements of the other of the odd-numbered rows and the even-numbered rows. The second solid-state image pickup device driving means for driving the second solid-state image pickup device so that the image data of the fourth solid-state image data is output simultaneously with the first solid-state image pickup device driving means. The first image data and the second image data output from the first solid-state electronic imaging device and the second solid-state imaging device are driven by the second solid-state electronic imaging device driving means.
Image data extracting means for sequentially extracting the third image data and the fourth image data outputted from the solid-state electronic image pickup device, and recording the two sets of image data extracted by the image data extracting means. Recording control means for sequentially recording on the recording medium in a time twice as long as the recording time over an area.

The second invention also provides a method for recording digital image data suitable for the digital video tape recorder. That is, an image of one frame is represented by unit image data having a predetermined image data amount, and the size of the recording area of the unit image data and the recording time required to record the unit image data are predetermined in advance. In a digital video tape recorder for sequentially recording the unit image data on a recording medium at a period of the recording time, photoelectric conversion elements for generating image data of the data amount of the unit image data are arranged in a column direction and a row direction. The first solid-state electronic imaging device and the photoelectric conversion device are spatially separated from the photoelectric conversion device of the first solid-state electronic imaging device by m / 2 so as to generate image data having a data amount of the unit image data. The second solid-state electronic imaging devices arranged in the column direction and the row direction with a pixel shift are simultaneously exposed, and the odd-numbered rows and the even-numbered rows are exposed. The first image data obtained based on the signal charges stored in the photoelectric conversion elements in one row and the first image data obtained based on the signal charges stored in the photoelectric conversion elements in the other row of the odd-numbered rows and the even-numbered rows are obtained. The first solid-state electronic imaging device is driven so that the second image data is output simultaneously with the second image data, and based on the signal charges stored in the photoelectric conversion elements in one of the odd and even rows. The second image data is output so that the third image data obtained and the fourth image data obtained based on the signal charges accumulated in the photoelectric conversion elements in the other of the odd and even rows are output simultaneously. And the first image data and the second image data output from the first solid-state electronic image sensor and the output from the second solid-state electronic image sensor. The third image data and the fourth image data are sequentially extracted, and the extracted image data is recorded on the recording medium in a time twice as long as the recording time over two unit image data recording areas. And

The unit image data corresponds to one frame image data in the above-mentioned current industry standard.

In the second invention, a first solid-state electronic imaging device for generating image data having a data amount of unit image data;
The first solid-state electronic imaging device is spatially shifted by m / 2 pixels (preferably 1/2 pixel) from the first solid-state electronic imaging device and generates a unit of image data having a data amount of unit image data. Used. Since imaging is performed using a solid-state electronic imaging device having a substantially large number of pixels, a high-quality image is captured at the imaging stage.

In order to record the image data which can produce a high-quality image obtained in this way while maintaining compatibility with a recording method according to the existing standard and without impairing the image data, In the first invention, the first image data, the second image data, the third image data, and the fourth image data are obtained, and a fourth image is obtained from the obtained first image data. Data is recorded on a recording medium in a double recording time over two unit image data recording areas. Image data is recorded on a recording medium according to a standard recording method. By synthesizing the image data recorded on the recording medium, a high-quality still image can be reproduced.

When at least the second solid-state electronic image pickup device has a signal charge holding section for temporarily holding the signal charges accumulated in the photoelectric conversion element, reading of the signal charges in the signal charge holding section is performed. By controlling, reading of image data from the second solid-state electronic imaging device can be controlled.

In the above, the first image data or the second image data output from the first solid-state electronic image pickup device is provided.
Is temporarily stored in a first image memory, and either one of the third image data or the fourth image data output from the second solid-state electronic imaging device is stored in a second image memory. And the first solid-state electronic image sensor, so that the first image data, the second image data, the third image data, and the fourth image data are sequentially obtained. The second solid-state electronic image sensor, the first image memory, and the second image memory may be controlled.

The second image data output from the first solid-state electronic image sensor is temporarily stored in a first image memory, and the third image data output from the second solid-state electronic image sensor is stored. Is temporarily stored in a second image memory, the fourth image data output from the second solid-state electronic image sensor is temporarily stored in a third image memory, and the first image data and the second image data are stored in the third image memory. The first solid-state electronic imaging device, the second solid-state electronic imaging device, the first image memory, the first image memory, and the third image data, the third image data, and the fourth image data are sequentially obtained. The second image memory and the third image memory may be controlled.

An image storing all of the image data of the data amount of the unit image data output from the first solid-state electronic image pickup device and the image data of the data amount of the unit image data output from the second solid-state electronic image pickup device The fourth image data can be sequentially obtained from the first image data without using a memory. An image memory with a small storage capacity can be used.

A third invention uses three solid-state electronic image pickup devices capable of generating image data having a data amount of unit image data and simultaneously reading out odd-numbered image data and even-numbered image data. is there. Two of these three solid-state electronic image sensors are solid-state electronic image sensors for green and
One is a solid-state electronic imaging device for red and blue.

That is, in the third invention, one frame of an image is represented by unit image data having a predetermined image data amount, and the size of the recording area of the unit image data and the recording required to record the unit image data A digital video tape recorder for sequentially recording the unit image data on a recording medium at a period of the recording time, wherein a filter for transmitting green light is provided on a light receiving surface; A first solid-state electronic imaging device in which photoelectric conversion elements for generating image data of a data amount are arranged in a column direction and a row direction, a filter for passing green light on a light receiving surface, and the unit image data; The photoelectric conversion element that generates the image data of the data amount is spatially shifted by m / 2 pixels from the first solid-state electronic imaging element. Comprises a second solid-state electronic image sensing elements arranged in direction and the row direction, and a filter which transmitted through the filter and the blue light transmits red light alternately,
A photoelectric conversion element for generating hybrid image data having a data amount of the unit image data spatially coincides with one of the first solid-state electronic imaging device and the second solid-state electronic imaging device in a column direction. And driving the first solid-state imaging device so as to be exposed simultaneously with the third solid-state imaging device arranged in the row direction, the second solid-state imaging device, and the third solid-state imaging device. And first image data obtained based on the signal charges stored in the photoelectric conversion elements in one of the odd and even rows, and the photoelectric conversion elements in the other of the odd and even rows. A first solid-state electronic imaging device driving means for driving the first solid-state electronic imaging device so that second image data obtained based on the signal charges accumulated in the first solid-state imaging device are simultaneously output; The second solid-state electronic imaging device is driven so as to be exposed at the same time as the child imaging device and the third solid-state electronic imaging device, and is stored in the photoelectric conversion element in one of odd and even rows. The third image data obtained based on the signal charge obtained and the fourth image data obtained based on the signal charge stored in the photoelectric conversion element in the other of the odd and even rows are simultaneously output. The second solid-state image pickup device driving means for driving the second solid-state image pickup device, the first solid-state image pickup device, and the second solid-state image pickup device are simultaneously exposed to light so that the second solid-state image pickup device is exposed. A fifth image obtained by inputting the hybrid image data output from the solid-state electronic imaging device No. 3 and based on the signal charges stored in the photoelectric conversion element in one of odd-numbered rows and even-numbered rows Over data and the other of the first image data extracting means for repeatedly for outputting twice sixth alternately image data obtained based on the signal charges accumulated in the photoelectric conversion elements of odd rows or even rows,
The first solid-state imaging device output from the first solid-state electronic imaging device under the driving of the first solid-state electronic imaging device driving means.
Image data, the second image data, and the third image data and the fourth image data output from the second solid-state electronic imaging device under the drive of the second solid-state electronic imaging device driving means. A second image data extracting means for sequentially outputting the image data, the fifth image data outputted from the first image data extracting means and the sixth image data extracting means;
Generating first unit image data from the first image data and the second image data output from the second image data extracting means and the first image data output from the second image data extracting means;
The fifth image data and the sixth image data output from the unit image data extracting means of
A unit image data generating unit that generates second unit image data from the third image data and the fourth image data output from the image data extracting unit; and the unit image data generated by the unit image data generating unit. A recording control means is provided for recording the first unit image data and the second unit image data on the recording medium in a double recording time over two unit image data recording areas.

A third aspect of the present invention relates to the digital video
We also provide recording methods suitable for tape recorders. That is, an image of one frame is represented by unit image data having a predetermined image data amount, and the size of the recording area of the unit image data and the recording time required to record the unit image data are determined in advance, respectively. In a digital video tape recorder for sequentially recording the above-mentioned unit image data on a recording medium at a time period, a light-receiving surface is provided with a filter for transmitting green light, and image data of the data amount of the above-mentioned unit image data is generated. A first solid-state electronic imaging device in which photoelectric conversion elements to be arranged are arranged in a column direction and a row direction; and a filter for transmitting green light on a light receiving surface, and generates image data of the data amount of the unit image data. Photoelectric conversion elements are spatially displaced from the first solid-state electronic imaging element by m / 2 pixels in the column direction and the row direction. And a second solid-state electronic image sensing device has,
The first solid-state electronic image pickup device includes a first solid-state electronic image sensor and a photoelectric conversion element that alternately include a filter that transmits red light and a filter that transmits blue light, and that generates hybrid image data having a data amount of the unit image data. A third solid-state electronic imaging device spatially aligned with either one of the second solid-state electronic imaging devices and arranged in the column direction and the row direction is simultaneously exposed to one of the odd-numbered rows and the even-numbered rows. The first image data is obtained based on the signal charges stored in the photoelectric conversion elements of the row and the signal image is obtained based on the signal charges stored in the photoelectric conversion elements of the other row of the odd-numbered row and the even-numbered row. The first solid-state electronic image pickup device is driven so that the second image data and the second image data are simultaneously output, and the first solid-state electronic image pickup device is driven based on the signal charges accumulated in the photoelectric conversion elements in one of the odd and even rows. The third image data obtained by the above and the fourth image data obtained based on the signal charges accumulated in the photoelectric conversion elements of the other of the odd and even rows are simultaneously output. The second solid-state image pickup device is driven, and the fifth image data and the odd number are obtained based on the signal charges stored in the photoelectric conversion element in one of the odd-numbered rows and the even-numbered rows of the third solid-state electronic image pickup element. The sixth image data obtained based on the signal charges stored in the other photoelectric conversion element of the row or the even row is alternately obtained twice, and the sixth image data output from the first solid-state electronic imaging element is obtained. 1st image data, the second image data, and the third image data and the fourth image data output from the second solid-state electronic imaging device are sequentially obtained. Generating first unit image data from the sixth image data, the first image data, and the second image data, and generating the fifth image data, the sixth image data, and the third image data; The second unit image data is generated from the data and the fourth image data, and the generated first unit image data and the second unit image data are doubled over two unit image data recording areas. The recording is performed on the recording medium for a recording time.

In a third aspect, the first solid-state electronic image pickup device, the second solid-state electronic image pickup device, and the third solid-state electronic image pickup device are used. Since these solid-state electronic imaging devices can generate image data having a data amount equal to or larger than the data amount of the unit image data, it is equivalent to performing photographing using a solid-state electronic imaging device having a substantially large number of pixels. High-quality images can be captured at the imaging stage.

In the third invention, the first image data,
The first unit image data is generated from the second image data, the fifth image data, and the sixth image data, and the third image data, the fourth image data,
The second unit image data is generated from the fifth image data and the sixth image data, and is recorded on the recording medium in a double recording time over two unit image data recording areas. It is possible to record image data on a recording medium while maintaining compatibility with a recording method according to an existing standard. By synthesizing the image data recorded on the recording medium, it is possible to reproduce a high-quality still image.

In the third aspect of the present invention, when at least the second solid-state electronic image pickup device has a signal charge holding portion for temporarily holding the signal charges accumulated in the photoelectric conversion element, the signal charge holding portion is provided. By controlling the reading of the signal charges in the section, the reading of the image data from the second solid-state electronic imaging device can be controlled.

In the above, the first image data or the second image data output from the first solid-state electronic image sensor is output.
Is temporarily stored in a first image memory, and either one of the third image data or the fourth image data output from the second solid-state electronic imaging device is stored in a second image memory. And the first solid-state electronic image pickup device so that the first image data, the second image data, the third image data, and the fourth image data are sequentially obtained. Controlling the second solid-state electronic imaging device, the first image memory, and the second image memory, and outputting fifth image data output from the third solid-state electronic imaging device to a third image memory. And the sixth image data output from the third solid-state electronic image sensor is temporarily stored in a fourth image memory.
It is preferable to control the third solid-state electronic imaging device, the third image memory, and the fourth image memory so that the image data and the sixth image data are obtained alternately.

The second image data output from the first solid-state electronic image sensor is temporarily stored in a first image memory, and the third image output from the second solid-state electronic image sensor is stored. Temporarily storing the data in a second image memory,
The fourth image data output from the second solid-state electronic image sensor is temporarily stored in a third image memory, and the first image data is stored in the third image memory.
The first solid-state electronic imaging device, the second solid-state electronic imaging device, and the second solid-state imaging device so that the image data, the second image data, the third image data, and the fourth image data are sequentially obtained. Controlling the first image memory, the second image memory, and the third image memory, and temporarily storing fifth image data output from the third solid-state electronic imaging device in a fourth image memory; The sixth image data output from the third solid-state electronic image sensor is temporarily stored in a fifth image memory, and the fifth image data and the sixth image data are alternately obtained. The third solid-state electronic image sensor, the fourth image memory, and the fifth image memory may be controlled.

The image data of the data amount of the unit image data output from the first solid-state electronic image pickup device, the image data of the data amount of the unit image data output from the second solid-state electronic image pickup device, and the third solid-state electronic device The first unit image data and the second unit image data can be obtained without using an image memory that stores all the image data of the data amount of the unit image data output from the imaging element. An image memory with a small storage capacity can be used.

The fourth invention uses two solid-state electronic image sensors for generating image data having a data amount of unit image data. In the fourth aspect, the solid-state electronic imaging device does not necessarily need to be able to simultaneously read odd-numbered rows of image data and even-numbered rows of image data.

According to a fourth aspect of the present invention, an image of one frame is represented by unit image data having a predetermined image data amount, and the size of a recording area of the unit image data and a recording time required for recording the unit image data are described. A digital video which is determined in advance and sequentially records the unit image data on a recording medium at the period of the recording time.
In a tape recorder, a first solid-state electronic imaging device in which a large number of photoelectric conversion elements for outputting image data of the unit image data amount are arranged in a column direction and a row direction, and an image of the data amount of the unit image data A second solid-state electronic imaging device in which a large number of photoelectric conversion elements for generating and outputting data are spatially displaced by m / 2 pixels from the first solid-state electronic imaging device and arranged in a column direction and a row direction; The image data is obtained by simultaneously exposing the first solid-state electronic imaging device and the second solid-state electronic imaging device, and is one of the odd-numbered rows or the even-numbered rows of the first solid-state electronic imaging device. The first image data output based on the signal charge stored in the photoelectric conversion element, and stored in the photoelectric conversion element in the other row of the odd-numbered row and the even-numbered row of the first solid-state electronic imaging device. Second image data output based on the obtained signal charge, and output based on the signal charge stored in the photoelectric conversion element in one of the odd and even rows of the second solid-state electronic imaging device. Third
And the fourth image data output based on the signal charges accumulated in the photoelectric conversion element in the other row of the odd and even rows of the second solid-state electronic imaging device are obtained in order. Image data extracting means for sequentially extracting image data output from the first solid-state electronic imaging device and the second solid-state electronic imaging device, and two image data sequentially extracted by the image data extracting means And recording control means for recording on the recording medium in a double recording time over the unit image data recording area.

The fourth invention also provides a method for recording image data. That is, an image of one frame is represented by unit image data having a predetermined image data amount, and the size of the recording area of the unit image data and the recording time required to record the unit image data are determined in advance, respectively. In a digital video tape recorder for sequentially recording the above-mentioned unit image data on a recording medium at a time period, a large number of the unit image data are arranged in a column direction and a row direction so as to output image data of the data amount of the unit image data. The first solid-state electronic imaging device and the photoelectric conversion device are spatially separated from the first solid-state electronic imaging device so as to generate and output image data having a data amount of the unit image data.
And simultaneously exposing a large number of second solid-state electronic image sensors arranged in the column direction and the row direction with a shift of / 2 pixels.
Image data output based on the signal charges stored in one of the odd-numbered rows and even-numbered rows of the solid-state electronic imaging device, and the odd-numbered rows and even-numbered first solid-state electronic imaging devices. A second output based on the signal charges stored in the photoelectric conversion elements in the other one of the rows
Image data, third image data output based on the signal charges accumulated in the photoelectric conversion element in one of the odd-numbered rows and the even-numbered rows of the second solid-state electronic imaging device, and the second image data. The first solid-state electronic device so that the fourth image data output based on the signal charges accumulated in the photoelectric conversion elements in the other row of the odd-numbered row and the even-numbered row of the solid-state electronic imaging element can be obtained in order. Extracting image data output from an imaging device and the second solid-state electronic imaging device and recording the extracted image data on the recording medium in a double recording time over two unit image data recording areas. Features.

Also in the fourth invention, the first solid-state electronic image pickup device and the second solid-state electronic image pickup device are used. Since it is substantially equivalent to imaging using a solid-state electronic imaging device having a large number of pixels, a high-quality image is captured at the imaging stage.

Further, the first image data, the second image data, the third image data, and the fourth image data are divided into two unit image data recording areas by two.
Since recording is performed on the recording medium in twice the recording time, recording can be performed while maintaining compatibility with a recording method according to the existing standard.

In the above, the first image data output from the first solid-state image sensor is temporarily stored in a first image memory, and the third image data output from the second solid-state image sensor is temporarily stored in a first image memory. Is temporarily stored in a second image memory, the fourth image data output from the second solid-state electronic image sensor is temporarily stored in a third image memory, and the first image data, The first solid-state electronic imaging device, the second solid-state electronic imaging device, and the first image so that the second image data, the third image data, and the fourth image data are sequentially obtained. It is preferable to control the memory, the second image memory, and the third image memory.

The recording on the recording medium can be performed without using an image memory capable of storing all of the image data output from the first solid-state electronic image sensor and the image data output from the second solid-state electronic image sensor. . An image memory with a small storage capacity is sufficient.

The fifth invention uses three solid-state electronic image sensors for generating image data having a data amount of unit image data. Of these three solid-state electronic imaging devices, two are solid-state electronic imaging devices for green and one is a solid-state electronic imaging device for red and blue. These solid-state electronic imaging devices need not always be able to simultaneously read odd-numbered rows of image data and even-numbered rows of image data.

According to a fifth aspect of the present invention, an image of one frame is represented by unit image data having a predetermined image data amount, and a size of a recording area of the unit image data and a recording time required for recording the unit image data are described. A digital video which is determined in advance and sequentially records the unit image data on a recording medium at the period of the recording time.
In a tape recorder, a first solid-state electronic device includes a filter for transmitting green light on a light receiving surface, and photoelectric conversion elements for generating image data having a data amount of the unit image data arranged in a column direction and a row direction. An image sensor, a light-receiving surface, a filter for transmitting green light, and a photoelectric conversion element for generating image data having a data amount of the unit image data are spatially separated from the first solid-state electronic image sensor by m / 2 pixels. A second solid-state electronic imaging device which is arranged in a column direction and a row direction so as to be shifted, a filter which transmits red light and a filter which transmits blue light alternately, and mixes the data amount of the unit image data; A photoelectric conversion element that generates image data spatially matches one of the first solid-state electronic imaging device and the second solid-state electronic imaging device in the column direction and the row direction. The hybrid which is output from the third solid-state image pickup device by being exposed simultaneously with the third solid-state image pickup device, the first solid-state image pickup device, and the second solid-state image pickup device which are arranged. The image data is input, and the fifth image data and the odd-numbered rows and the fifth image data obtained based on the signal charges accumulated in the photoelectric conversion element in one of the odd-numbered rows and the even-numbered rows of the third solid-state electronic imaging device are provided. A first image data extracting unit for alternately and repeatedly outputting twice the sixth image data obtained based on the signal charges accumulated in the photoelectric conversion elements in the other row of the even rows, the first image data extracting means; First image data that is output based on the signal charge stored in the photoelectric conversion element of one of the odd-numbered row and the even-numbered row of the solid-state electronic imaging device; The second image data output based on the signal charges accumulated in the photoelectric conversion elements in the other row of the rows, and the second image data in one of the odd rows and the even rows of the second solid-state electronic imaging device. Third image data output based on the signal charge stored in the photoelectric conversion element, and the third image data stored in the photoelectric conversion element in the other of the odd and even rows of the second solid-state electronic imaging device. Second image data extracting means for sequentially extracting fourth image data output based on the signal charge;
The fifth image data output from the first image data extracting means.
Generating first unit image data from the first image data and the second image data output from the first image data and the sixth image data, and the first image data and the second image data output from the second image data extracting means; From the fifth image data and the sixth image data output from the unit image data extracting means, and from the third image data and the fourth image data output from the second image data extracting means. Unit image data generating means for generating second unit image data; and two unit image data recording areas for storing the first unit image data and the second unit image data generated by the unit image data generating means. And recording control means for sequentially recording on the recording medium with a double recording time over the recording medium.

According to a fifth aspect of the present invention, the digital video
We also provide recording methods suitable for tape recorders. That is, an image of one frame is represented by unit image data having a predetermined image data amount, and the size of the recording area of the unit image data and the recording time required to record the unit image data are predetermined in advance.
In a digital video tape recorder for sequentially recording the unit image data on a recording medium at a period of the recording time, a filter for transmitting green light on a light receiving surface is provided, and the image data of the data amount of the unit image data is provided. A first solid-state electronic imaging device in which photoelectric conversion elements to be generated are arranged in a column direction and a row direction, a filter for transmitting green light on a light receiving surface, and image data having a data amount of the unit image data; A second solid-state electronic imaging device in which a photoelectric conversion element to be generated is spatially displaced by m / 2 pixels from the first solid-state electronic imaging device in a column direction and a row direction, and a filter that transmits red light And a photoelectric conversion element that alternately includes a filter that transmits blue light is a photoelectric conversion element that generates hybrid image data having a data amount of the unit image data. Body electronic imaging device and the second
And the third solid-state imaging device spatially aligned with one of the solid-state imaging devices and arranged in the column direction and the row direction at the same time, and is output from the third solid-state imaging device. Fifth image data obtained based on the signal charges stored in the photoelectric conversion elements in one of the odd rows and the even rows, and stored in the photoelectric conversion elements in the other of the odd rows and the even rows. The second image data and the sixth image data output from the first solid-state electronic imaging device are obtained alternately twice with the sixth image data obtained based on the obtained signal charge. The third image data and the fourth image data output from the second solid-state electronic image sensor are sequentially obtained, and the fifth image data, the sixth image data, and the first image data are obtained. Generating first unit image data from the second image data; and generating a second unit image from the fifth image data and the sixth image data, and the third image data and the fourth image data. Generating data, and sequentially recording the generated first unit image data and the second unit image data on the recording medium in a double recording time over two unit image data recording areas. I do.

Also in the fifth invention, the first solid-state electronic image pickup device, the second solid-state electronic image pickup device, and the third solid-state electronic image pickup device.
Is used. Since these solid-state electronic imaging devices can generate image data having a data amount of unit image data, it is equivalent to performing photographing using a solid-state electronic imaging device having a substantially large number of pixels. High-quality images can be captured at the imaging stage.

Also in the fifth invention, the first unit image data is generated from the first image data, the second image data, the fifth image data, and the sixth image data. The second unit image data is generated from the third image data, the fourth image data, the fifth image data, and the sixth image data, and is doubled over two unit image data recording areas. The recording is performed on the recording medium for the recording time. It is possible to record image data on a recording medium while maintaining compatibility with a recording method according to an existing standard. By synthesizing the image data recorded on the recording medium, it is possible to reproduce a high-quality still image.

In the fifth invention, the image data may be stored using the first to fourth image memories as in the second invention. An image memory for storing all the image data obtained from the solid-state electronic imaging devices from the first solid-state electronic imaging device to the third solid-state electronic imaging device becomes unnecessary, and an image memory with a small storage capacity can be used.

According to a sixth aspect of the present invention, a subject is imaged using a solid-state electronic image sensor for generating image data having a data amount n times as large as the frame unit image data, and 2n image data obtained by the imaging is obtained. Divided into the above field unit image data, read out in order for each field unit image data,
It is recorded in n recording areas.

According to a sixth aspect of the present invention, the size of a recording area for recording frame-based image data representing one frame of image on a recording medium and the recording time required for recording the frame-based image data are predetermined. An apparatus for dividing the frame unit image data into two field unit image data and recording the divided data in the recording area,
A solid-state electronic imaging device for generating image data of a data amount of n times (n is a positive integer of 2 or more) of the frame unit image data for one frame of image; Imaging means for outputting image data representing a subject image obtained by the above-described method, and image data output from the imaging means, each of which is represented by 2n
Image data extracting means for sequentially extracting 2n pieces of the field unit image data for each of the field unit image data, and 2n pieces of the field unit image data extracted from the extracting means. , N recording areas, and recording control means for sequentially recording on the recording medium for n times the recording time.

The sixth invention also provides a method suitable for the digital image data recording device. That is, the size of a recording area for recording frame-based image data representing one frame of image on a recording medium and the recording time required to record the frame-based image data are determined in advance. In a device that divides the image into one field unit image data and records the image data in the recording area, image data of a frame amount of image data is generated by n times (n is a positive integer of 2 or more) the frame unit image data. Data representing a subject image obtained by imaging a subject using an imaging means including a solid-state electronic image pickup device is obtained, and the obtained image data is converted into 2n pieces of the field unit image data each representing one frame of image. Then, 2n pieces of the field unit image data are sequentially extracted for each of the field unit image data. The 2n-number of the field unit image data, in n times the recording time over the n recording regions, wherein the sequentially recorded on the recording medium.

Also in the sixth invention, it is possible to reproduce a high-quality still image while conforming to the conventional standard.

The seventh invention relates to an image data processing device.

According to a seventh aspect of the present invention, for one frame of image, n times (n is 2) the frame unit image data representing one frame of image.
Image data input means for inputting image data obtained from a solid-state electronic imaging device for generating image data having a data amount of the above (positive integer); and And 2n number of field unit image data, and image data extracting means for sequentially extracting the 2n field unit image data for each field unit image data.

The seventh invention also provides a method suitable for the image data processing device. That is, for one frame of image, image data is obtained from a solid-state electronic imaging device which generates n times (n is a positive integer of 2 or more) image data of frame unit image data representing one frame of image. The divided image data is divided into 2n field unit images, each representing one frame of image, and 2n field unit image data are sequentially extracted for each field unit image data.

According to the seventh aspect, since 2n pieces of the field unit image data are sequentially extracted for each of the field unit image data, recording conforming to the conventional standard can be performed.

[0054]

[Explanation of the embodiment]

(1) Existing standard of recording system Before describing the configuration and operation of the digital video tape recorder, the existing standard industry standard for the recording system on the magnetic tape by the digital video tape recorder is explained. Keep it.

FIG. 18A shows the recording format of the magnetic tape.
And (B). FIG. 18A shows the tracks Tr of the magnetic tape 8, and a large number of tracks Tr are formed at a fixed angle in a diagonal direction with respect to the longitudinal direction of the magnetic tape 8. Of these many tracks Tr
One frame of digital image data is recorded using ten tracks.

FIG. 18B shows a track format. A single track Tr, subcode recording region A _1, the video recording area A _2, the auxiliary recording area A _3, contains audio recording area A ₄ and track information recording area A _5. Information such as time code and the absolute track numbers for fast searching is recorded in the subcode recording region A _1. The video recording area A ₂ is a digital image data representing the image of the subject is recorded. Data representing the sound is recorded in the audio recording area A _4. To track information recording area A ₅ are for the magnetic head to trace the center of the track Tr, serving as a reference information of the track Tr is recorded. Auxiliary recording area A ₃ is provided at intervals, in the auxiliary recording area A ₃ the additional information is recorded. In the embodiment to be described later in detail, the auxiliary recording area A _3, when the divided images of one frame into four fields, the image data representing these four fields where the track of the magnetic tape 8 Recording area data indicating whether recording has been performed is recorded. The illustration of the gaps provided between the respective regions is omitted.

As an example, the imaging unit of the digital video tape recorder has two CCDs, a green CCD for outputting a green video signal and a red and blue CCD for outputting red and blue video signals. Is used.
Each of these CCDs has a horizontal CCD transfer clock frequency of 13.5 MHz, 720 pixels in the horizontal direction and 480 pixels in the vertical direction.
It has about 350,000 pixels. C for green
Video signal output from CD and red and blue CCD
, A RY and BY color difference signal and a luminance signal Y are generated from the video signal output from the. These R-
From the Y and BY color difference signals and the luminance signal Y, one frame of digital image data having about 350,000 pixels of 720 pixels in the horizontal direction and 480 pixels in the vertical direction and representing a subject image is generated. Recorded on 10 tracks. This is an existing standard.

In order to improve the image quality of the image represented by the image data recorded on the magnetic tape 8, a CCD having a large number of pixels may be used. However, in digital video tape recorders, the horizontal
Since the standard is set to record digital image data of about 350,000 pixels of 20 pixels and 480 pixels in the vertical direction on 10 tracks, a green CCD with about 350,000 pixels and a green CCD A CCD having more pixels than a red and blue CCD or a CC having approximately 350,000 pixels
Even for D, CCD for green and C for red and blue
If digital image data obtained by capturing an image of a subject using a larger number of CCDs than the total of two CCDs on a CD is recorded on the magnetic tape 8, the standard is out of this standard.
The digital video tape recorder described below has two green C-pixels each having 350,000 pixels.
A total of three CCs, CD and red and blue CCDs
D to capture an image of the subject
This enables recording of image data conforming to a conventional recording standard of a tape recorder.

(2) DVTR DVTR Recording Method First, a method of recording image data by the DVTR (digital video tape recorder) of this embodiment will be described.

FIG. 8 is a time chart showing the flow of image data obtained by imaging, and FIG. 9 is a DV chart of this embodiment.
FIG. 3 schematically illustrates the state of a pixel represented by image data recorded on a magnetic tape by a TR. FIG.
In FIG. 2, the number of pixels is extremely small for convenience of explanation.

In the DVTR according to this embodiment, as will be described later, a first green CCD for outputting a green video signal representing a subject image, and the first green CCD and 1 / two in the column and row directions. The subject is photographed using a second green CCD that outputs a green video signal representing a subject image that is shifted by two pixels, and a red and blue CCD that outputs red and blue video signals representing the subject image. Is done. Each of these CCDs has 720 pixels in the horizontal direction and 480 pixels in the vertical direction. Each of these CCDs includes a large number of photodiodes, and has a vertical transfer path for vertically transferring signal charges accumulated in the photodiodes and two horizontal transfer paths for horizontally transferring signal charges. doing. Since each of these CCDs has two horizontal transfer paths, it is possible to simultaneously output odd-numbered field image data (video signals) and even-numbered field image data (video signals) (FIGS. 3 to 3). 5
reference).

A first green CCD and a second green CCD
And CCD of red and blue combined are simultaneously exposed between times T ₁ through T _2.

The first image data of the odd field and the second image data of the even field are simultaneously output from the first green CCD during the time T _{2 to} T ₃ . The second image data of the even field is temporarily stored in the memory. Second image data in the temporary stored even field in the memory is read from the memory between times T ₃ through T _4.

For the second green CCD, the signal charge accumulated in the photodiode is temporarily held in the vertical transfer path of the CCD, and the third image data of the odd field and the even image are stored between time T _{4 and} T _5. It is read out simultaneously as the fourth image data of the field. The fourth image data of the even field is temporarily stored in the memory. The fourth image data of the temporary stored even field in the memory is read from the memory between times T ₅ through T _6.

From the red and blue CCDs, the time T _2-
Image data of the sixth fifth image data and the even field of an odd field is outputted during T _3. The sixth image data of the even field is temporarily stored in the memory. Sixth image data of the temporary stored even field in the memory is read from the memory between times T ₃ through T _4. The fifth image data of the odd field are temporarily stored in the memory between times T ₃ through T _4. Fifth image data of the temporary stored odd field memory is read from the memory between times T ₄ through T _5. Further, the sixth image data of the temporary stored even field in the memory is read from the memory between times T ₅ through T _6.

Between the times T _{2 and} T ₃ , the first green CCD
First image data of the even field output from the second image data of the even field is read from the memory between times T ₃ through T _4, between times T ₂ through T ₃ for red and blue color difference of the fifth image data and the time T ₃ from the sixth image data of the even field read from memory during the through T ₄ for one frame R-Y and B-Y of the odd field output from CCD A signal and a luminance signal Y are generated and recorded using ten tracks of the magnetic tape.

The second green CCD between times T _{4 and} T ₅
Read from the memory during the third image data, the fourth image data of the even field is read from the memory between times T ₅ through T _6, the time T ₄ through T ₅ of the odd field output from fifth image data and the time T ₅ through T of the sixth frame from the image data of the even field read from memory during the ₆ R-Y and B-Y color difference signals and the luminance signal Y of the odd field Is generated and recorded using 10 tracks of the magnetic tape.

As a result, as shown at the top of FIG.
0 × 480) × 2 = image data representing the number of about 700,000 pixels is recorded on the magnetic tape in order from the first field to the fourth field as shown at the bottom of FIG.

Structure of DVTR FIGS. 1 and 2 are block diagrams showing the electrical structure of a DVTR capable of recording digital image data. DVT
The overall operation of R is controlled by a system controller 80 (control lines are not shown).

The digital video tape recorder according to this embodiment can set a movie recording mode and a still recording mode. A mode setting switch 3 is provided for setting a recording mode.
To enter. In the movie recording mode, the subject is continuously photographed at a period of 1/60 second. In the still recording mode, a shutter signal indicating the depression of the shutter release button 2 is input to the system controller 80, and the subject is photographed at a predetermined shutter speed at the timing of the depression of the shutter release button 2. .

In both the still recording mode and the movie recording mode, the subject image is captured by the imaging lens.
The light is guided to a separation prism 13 through 12. Separating prism 13
, The subject image is separated into three, and three CCDs 20,
Image on 40 and 60. These CCDs 20, 40 and
60 is a CCD controlled by the timing generation circuit 10
Driven by the drive circuit 11.

The CCDs 20, 40 and 60 have 720 pixels in the horizontal direction and the vertical direction as shown in FIGS. 3, 4 and 5, respectively.
This is a solid-state electronic image sensor with about 350,000 pixels of 480 pixels. The CCDs 20 and 40 are solid-state electronic imaging devices for obtaining green video signals, and the CCD 60 is a solid-state electronic imaging device for obtaining red and blue video signals.

The subject image formed on the CCD 40 is turned left and right once by reflection at the separation prism. Therefore, CCD
The video signal output from 40 is subjected to left / right inversion processing in a line memory 52 and a field memory 53 (see FIG. 7) included in the image data conversion circuit 15 as described later. As a result, the subject image that has been inverted left and right in the separation prism 13 returns to its original state.

Referring to FIG. 3, the first green CCD 20 includes a large number of photoelectric conversion elements 21 and 22. The photoelectric conversion elements in odd-numbered rows are denoted by reference numeral 21 and the photoelectric conversion elements in even-numbered rows are denoted by reference numeral 22 (one photoelectric conversion element 21 or 22).
Corresponds to one pixel). These photoelectric conversion elements 21 and
A filter that allows the passage of green light is affixed to the light receiving surface of 22. A vertical transfer path 23 is arranged adjacent to each column of the photoelectric conversion elements 21 and 22. A first horizontal transfer path 24 and a second horizontal transfer path 25 are connected to the output side of the vertical transfer path 23. The signal charges accumulated in the odd-numbered rows of the photoelectric conversion elements 21 are given to the first horizontal transfer path 24 via the vertical transfer path 23, and are supplied as odd field video signals to the first horizontal transfer path 24.
Output from The signal charges accumulated in the even-numbered rows of the photoelectric conversion elements 22 are supplied to the second horizontal transfer path 25 via the vertical transfer path 23, and are output from the second horizontal transfer path 25 as even-field video signals. From the first green CCD 20,
Odd field video signals and even field video signals are read out in parallel.

As shown in FIG. 4, the second green CCD 40
Also includes a large number of photoelectric conversion elements 41 and 42 (odd-numbered photoelectric conversion elements are denoted by reference numeral 41, and even-numbered photoelectric conversion elements are denoted by reference numeral 42). A filter that allows the passage of green light is attached on the surface. A vertical transfer path 43 and a first horizontal transfer path for outputting an odd field video signal are also provided to the second green CCD 40.
44 and a second horizontal transfer path 45 for outputting an even field video signal.

FIG. 5 schematically shows a CCD 60 for both red and blue. CCD60 also has many photoelectric conversion elements 61
And 62 are included. Odd-numbered photoelectric conversion elements are sign
At 61, the photoelectric conversion elements in the even-numbered rows are indicated by reference numerals 62, respectively. On the light receiving surfaces of the photoelectric conversion elements 61 and 62, filters that allow red light to pass and filters that allow blue light to pass are alternately attached. In FIG. 5, a filter that allows red light to pass is indicated by R, and a filter that allows blue light to pass is indicated by B. The CCD 60 also includes a vertical transfer path 63, a first horizontal transfer path 64 for outputting odd field video signals, and a second horizontal transfer path 65 for outputting even field video signals.

The second green CCD 40 is connected to the first green CCD 40.
It is provided so as to be spatially shifted by 1/2 pixel from the CD 20 in the column direction and the row direction. Therefore, as shown in FIG. 6, (720 pixels × 480 pixels) × 2 =
700,000 veneer pixel CCD is equivalent to that the are located (in pixels code G ₁ represented by the photoelectric conversion element of CCD20 for the first green 6, for the second green pixels represented by the photoelectric conversion element of the CCD40 are respectively represented by reference numeral G ₂₎ of. The red and blue CCDs 60 are provided so that their pixels spatially coincide with the pixels of the first green CCD 20.

Returning to FIG. 1, the video signal of the odd field obtained from the first CCD 20 for green based on the signal charges stored in the photoelectric conversion elements of the odd rows and the video signal of the odd fields are stored in the photoelectric conversion elements of the even rows. Video signal of the even field obtained based on the obtained signal charge and the second green C
From the CD 40, the odd-field video signal obtained based on the signal charges stored in the odd-row photoelectric conversion elements, the even-field video signal obtained based on the signal charges stored in the even-row photoelectric conversion elements, and red. And the odd-field video signal obtained from the signal charges stored in the odd-numbered photoelectric conversion elements and the even-numbered field obtained from the signal charges stored in the even-numbered photoelectric conversion elements from the CCD 60 for both blue and blue. Each video signal is output and CDS (Correlate Double Sampling)
(In the case of the still recording mode, the odd-field and even-field video signals output from the first green CCD 20 and the odd fields and the odd-field output from the red and blue CCD 60 are supplied to the circuit 26, as described later.) The video signals of the even fields are output from the CCDs 20 and 40 simultaneously, while the video signals of the odd and even fields output from the second green CCD 40 are output from the first green CCDs 40 and 60. It is output 1/30 second behind the video signal.)

In the CDS circuit 26, the KTC noise component of the input video signal is suppressed and the GCA (Gain Control
d Amplifier) 27. The level of the video signal is adjusted in GCA27, and the AD (Analog-Digital)
It is provided to the conversion circuit 28. The analog video signal is converted to digital image data in the AD conversion circuit 28 and input to the image data conversion circuit 15. The image data conversion circuit 15 is a circuit for converting input image data into image data suitable for an existing standard. The operation of the image data conversion circuit 15 will be described later in detail.

From the image data conversion circuit 15, G (green) data, R (red) data and B (blue) data are output alternately in odd and even fields, and input to the image data processing circuit 81 (see FIG. 2). . Gamma correction is performed in the image data processing circuit 81, and luminance data Y and color difference data of BY and RY are generated. The luminance data Y and the color difference data of BY and RY are sequentially passed through a data compression circuit 82, applied to a frame memory 83, and temporarily stored therein.

The image data stored in the frame memory 83 is read out and sequentially applied to the data compression circuit 82. In the data compression circuit 82, DCT (Discrete Cosine Transf
orm) processing, quantization processing, etc.
Data compression is applied to the image data. The image data compressed in the data compression processing circuit 82 is supplied to (simply passed through) the error correction code adding circuit 84 to the frame memory 85 and is temporarily stored.

The image data stored in the frame memory 85 is sequentially applied to an error correction code adding circuit 84, where an error correction code is added. The image data to which the error correction code has been added is applied again to the frame memory 85 and stored. The image data is read out again from the frame memory 85 and applied to the error correction code adding circuit 84. Error correction code addition circuit
84 is also provided with recording area data from the system controller 80. This recording area data identifies four field data that make up one frame.
It is added to each of the four field image data (auxiliary area).

The image data output from the error correction code adding circuit 84 is applied to a recording encoding circuit 86, encoded (for example, NRZI encoded), and applied to a recording amplifier circuit 87. The image data amplified by the recording amplification circuit 87 is given to the magnetic head 88. Thereby, the video recording area A of each track of the magnetic tape 8 is moved by the magnetic head 88.
_Second image data is recorded in the recording region data in the auxiliary recording area A ₃ is recorded. Recording of audio data and track information is of course also performed.

One frame of image data obtained by using the three CCDs 20, 40 and 60, that is, the image data of the first two fields out of the image data of four fields,
Since it corresponds to the data amount of one frame of image data obtained by photographing a subject using a generally used 350,000-pixel CCD for green and a 350,000-pixel CCD for both red and blue, continuous 10 It is recorded in the video recording area a ₂ of the number of tracks. Remaining 2 out of 4 fields of image data
Image field of data is recorded in the video recording area A ₂ of the next 10 tracks the image data which the image data of the first two fields has already been recorded. Three CCs
One frame of image data obtained by using the D20, D40, and D60 is a frame of image data obtained by using a commonly used 350,000-pixel CCD for green and a 350,000-pixel CCD for both red and blue. Since the data amount is twice as large as that of the image data, the data is recorded on the magnetic tape 8 using 20 tracks.
The recording operation for four fields is performed at a period of 1/15 second, similarly to the photographing operation for four fields.

Next, the operation of the image data conversion circuit 15 included in the DVTR will be described.

FIG. 7 is a detailed block diagram of the image data conversion circuit 15.

As described above, the DVTR can perform movie recording and still recording.

First, the operation of the image data conversion circuit 15 when the movie recording mode is set by the mode setting switch 3 will be described.

FIGS. 10 and 11 are time charts of video signals output from the first green CCD 20 and the red and blue CCDs 60 when movie recording is performed. In these figures, codes (G _{1 (1} , ₁₎ , R ₍₁ , ₁₎ , B _{(1, 2 )} indicating which pixel out of each pixel of the CCD 20 or 60 is a video signal or image data. ₎ Etc. The number in parentheses indicates the position of the pixel.
₁ represents a video signal or image data obtained from the first green CCD 20, and R or B represents a red and blue C
This represents a video signal or image data obtained from the CD60. ) Are also described corresponding to video signals or image data.

In the movie recording mode, the switch circuit Sw8 is connected to the M side and an image obtained based on a video signal output from the first green CCD 20 and a video signal output from the red and blue CCD 60 is used. Data is recorded on the magnetic tape 8. In the movie recording mode, the switch circuit Sw9 is also connected to the M side.

In the movie recording mode, the photographing is repeated at a period of 1/60 second, and the odd field image data and the even field image data obtained from the CCDs 20 and 60 are simultaneously inputted to the image data conversion circuit 15. One of the odd field image data and the even field image data input to the image data conversion circuit 15 at the same time so that odd field image data and even field image data are alternately obtained every 1/60 second. The data is extracted in the data conversion circuit 15. Specifically, it is as follows.

The switch circuits Sw6 and Sw7 are 1/60
The terminal a and the terminal b are alternately switched in a second cycle. When one of the switch circuits is connected to the terminal a, the other switch circuit is also connected to the terminal a. When one of the switch circuits is connected to the terminal b, the other of the switch circuits Sw6 and Sw7 is connected. The switch circuit is also connected to the terminal b.

The odd-numbered-field G image data obtained based on the video signal output from the CCD 20 is supplied to the terminal a of the switch circuit Sw6, and is supplied to the even-numbered G-field.
The image data is given to the terminal b of the switch circuit Sw6. Since the switch circuit Sw6 is alternately switched at a period of 1/60 second, G image data of an odd field and G image data of an even field pass through the switch circuit Sw6 alternately every 1/60 second. These G image data are passed through a switch circuit Sw8 to an image data processing circuit.
Enter 81.

The R and B image data of the odd field obtained based on the video signal output from the CCD 60 is supplied to the terminal a of the switch circuit Sw7, and the R and B image data of the even field are supplied to the b terminal of the switch circuit Sw7.
It is given to the terminal side. Since the switch circuit Sw7 is alternately switched in a 1/60 second cycle, the R and B image data of the odd field and the R and B image data of the even field alternately pass through the switch circuit Sw7 every 1/60 second. Becomes These R and B image data are supplied to the switch circuit Sw10 through the switch circuit Sw9.

The switch circuit Sw10 is connected to the R image data and the B image data.
This is a circuit for separating image data. The terminal a is connected when the R image data is supplied to the switch circuit Sw10, and the terminal b is connected when the B image data is supplied to the switch circuit Sw10. Thus, the image data that has passed through the switch circuit Sw10 is separated into R image data and B image data, and is provided to the image data processing circuit 81.

Next, the operation of the image data conversion circuit 15 when the still recording mode is set by the mode setting switch 3 will be described.

FIG. 12 shows the first state when still recording is performed.
13 is a time chart of the video signal output from the green CCD 20, FIG. 13 is a time chart of the video signal output from the second green CCD 40 when the still recording is performed, and FIG. FIG. 15 is a time chart of a video signal output from the CCD 60 for both red and blue when still recording is performed.

In the still recording mode, so-called electronic shutter control is used to set the shutter speed for photographing to an appropriate value (for example, 1/60 second, or a shorter time if necessary). Here, it is assumed that the shutter speed is set to 1/60 second.

In the still recording mode, the image data for one frame obtained by exposure at the same time is converted into four fields by the image data conversion circuit 15 so that the image data of the odd field and the image data of the even field are alternated. It is divided and input to the image data processing circuit 81. Those image data conversion circuit 15 specifically operates as follows: (a shutter-release button 2 is pressed, CCD20,40 and 60 during the period from time t ₂₀ to the time t ₂₁ is exposed And). Switch circuits Sw8 and Sw9 are both connected to the S side.

[0100] With reference to FIG. 12, when the time t _21, the first odd field for G based on the signal charge accumulated in the photoelectric conversion element of CCD20 by exposure between times t ₂₁ from the time t ₂₀ The image data and the first G even field image data are output from the CCD 20 at the same time. First
The odd field image data for G is input to the image data conversion circuit 15 and supplied to the a terminal side of the switch circuit Sw1. The first even field image data for G is input to the image data conversion circuit 15 and the first field memory 32
Given to. The first G even field image data is delayed for one field period (1/60 second) in the first field memory 32, and is switched by the switch circuit Sw1.
Is provided to the terminal b.

[0101] time from the switch circuit Sw1 is time t ₃₂ t
During a terminal side ₃₃ is connected between the terminal b of the time t ₃₄ is connected from the time t _33. The switch circuit Sw3 between the terminal b of the time t ₃₄ from the time t ₃₂ is connected. As a result the odd field image data for the first G becomes possible to input the image data processing circuit 81 during the time t ₃₃ from the time t ₃₂ through the switching circuit Sw1, Sw3 and Sw8. Further, the first even-numbered field image data for G passes through the switch circuits Sw1, Sw3 and Sw8 at time t _33.
So that the input to the image data processing circuit 81 during the time t ₃₄ from.

[0102] With reference to FIG. 13, the signal charge accumulated in the photoelectric conversion element of CCD40 by exposure between times t ₂₁ from the time t ₂₀ is held from time t ₂₁ to the vertical transfer path between t ₂₃ . The signal charges held in the vertical transfer path is read at time t _23, and the even field image data of the odd field image data and for the second G for a second G obtained based on the signal charges are simultaneously CCD40 Output from The second odd-numbered field image data for G is input to the image data conversion circuit 15 and supplied to the 1H memory 52.
The 1H memory 52 stores one horizontal scan line of image data (7
This is a memory for storing image data for 20 pixels). 1H
Image data for one horizontal scanning line is temporarily stored in the memory 52, and image data is read out according to a FILO (first-in-last-out) method so that the first input image data is output last. . As a result, the subject image that has been inverted left and right in the separation prism 13 becomes the original subject image.

The second odd field image data for G read from the 1H memory is supplied to the terminal a of the switch circuit Sw2. The second even field image data for G is input to the image data conversion circuit 15 and supplied to the second field memory 53. The even field image data for the second G is delayed by one field period (1/60 second) in the second field memory 53, and the image data of one horizontal scanning line is one horizontal line according to the FILO system. Image data is read such that the first image data is read last in the scan line. As a result, the subject image that has been inverted left and right in the separation prism 13 returns to its original state.

The switch circuit Sw2 operates at time t.₃₄From time t
₃₅Terminal a is connected during time t ₃₅From time t₃₆Between
The terminal b is connected. Further, the switch circuit Sw3 operates at the time
t₃₄From time t₃₅Terminal a is connected. As a result
The second odd field image data for G is a switch circuit.
Time t via Sw2, Sw3 and Sw8₃₄From time
t₃₅Input to the image data processing circuit 81 during
You. The second even-numbered field image data for G
Time t via the switching circuits Sw2, Sw3 and Sw8.₃₅
From time t₃₆Input to the image data processing circuit 81 during
And

[0105] As shown in FIG. 14, from time t ₃₂ t ₃₆
In the meantime, odd field image data for G and even field image data for G are alternately input to the image data processing circuit over four fields.

[0106] With reference to FIG. 15, when the time t _21, based on the signal charge accumulated in the photoelectric conversion element of CCD60 by exposure between times t ₂₁ from the time t ₂₀ odd-numbered field image for R and B The data and the even field image data for R and B are output from the CCD 60 at the same time.
The odd-numbered field image data for R and B is input to the image data conversion circuit 15 and supplied to the terminal a of the switch circuit Sw4 and to the third field memory 72. The third field memory 72 temporarily stores the input odd-numbered field image data for R and B, and outputs the stored image data with a delay of one field period.
The R and B image data output from the third field memory 73 is supplied to the terminal b of the switch circuit Sw4. The even field image data for R and B is input to the image data conversion circuit 15, applied to the field memory 73, and temporarily stored. The image data read from the field memory 73 is supplied to the terminal b of the switch circuit Sw5.

[0107] time from the switch circuit Sw4 the time t ₃₂ t
₃₃ is connected to between a terminal side of, between the terminal b of the time t ₃₅ is connected from the time t _34. Also a third field memory
72 Between the time t ₃₄ at time t _35, the reading of the image data stored is performed.

[0108] time from the switch circuit Sw5 the time t ₃₂ t
₃₃ and between a terminal of the time t ₃₅ from the time t ₃₄ is connected, the time from time t ₃₃ t ₃₄ and time t ₃₅ the time t ₃₆ from
During the period, the terminal b is connected. The fourth field memory 73 during the time t ₃₃ from the time t ₃₄ and time t ₃₅ at time t _36, the reading of the image data stored is performed.

As a result, the odd-numbered field image data for R and B are stored in the switch circuits Sw4, Sw5 and Sw9.
Between time t ₃₅ from the time t ₃₂ from between and time t ₃₄ at time t ₃₃ through the given switch circuit SW10, the even field image data for R and B switching circuit Sw
From the time t ₃₃ through 5 and Sw9 Between and during time t ₃₅ at time t ₃₄ at time t ₃₆ is supplied to the switch circuit SW10 (see Fig. 15 bottom).

The odd-numbered field image data and the even-numbered field image data for R and B are applied to a switch circuit 10 and divided into R image data and B image data, which are input to an image data processing circuit 81.

(3) Reproduction of Digital Image Data FIG. 16 is a block diagram showing an electrical configuration of a digital image data reproduction device. The playback modes preferably include a movie playback mode and a still playback mode.

In the digital image data reproduction mode, image data, recording area data, and other data recorded on the magnetic tape 8 are read by the magnetic head 91 and supplied to the reproduction amplifier circuit 92. The data amplified by the reproduction amplifier circuit 92 is supplied to a demodulation circuit 93. Demodulation circuit
The data is demodulated in 93, and applied to a frame memory 94B via an error correction circuit 94A for temporary storage. The data stored in the frame memory 94B is read and applied to the error correction circuit 94A. If there is a data error in the data demodulated in the demodulation circuit 93, an error correction process is performed in the error correction circuit 94A. Digital image data representing a subject image among the data subjected to the error correction processing is applied to a field memory 95B via a data expansion circuit 95A, and recording area data is stored in a system memory 95B.
It is provided to the controller 90.

In the movie playback mode, the frame
The image data stored in the memory 95B is stored in a data expansion circuit 95.
A, and data expansion processing of the compressed image data is performed. The digital image data expanded in the data expansion circuit 95A is supplied to the monitor display device 98 field by field. The monitor display device 98 performs interlaced scanning on the odd and even fields, and reproduces a moving image on the monitor display device 98. The monitor display device 98 may be provided in the digital video tape recorder 97.

The digital video tape shown in FIG.
The recorder can reproduce still images in addition to moving images.
In the still reproduction mode, the image data subjected to data expansion in the data expansion circuit 95A is output from the image synthesis circuit 96.
Given to. In the image synthesizing circuit 96, the four field data constituting one frame are identified based on the recording area data given to the system controller 90, and as shown in FIG.
One frame of image data is generated from the data. This image data is provided to the printer 99, and a high-quality still image is printed. Of course, image data may be provided to the monitor display device 98 to display a high-quality still image.

A switch for switching or selecting between the movie playback mode and the still playback mode among the playback modes is provided, and the switch between the movie playback and the still playback is performed by this switch. The mode selection signals from these switches are supplied to the system controller 90, and the system controller 90 controls each circuit so that the processes in the various modes described above are executed.

In the above description, each circuit is constituted by hardware.
It can also be realized by software.

(4) Another Embodiment FIG. 19 shows another embodiment, and is a block diagram showing a part of an electric configuration of a DVTR. In this figure, the same components as those shown in FIG.

Prior to the description of the configuration of the DVTR shown in FIG. 19, a method of recording image data by the DVTR will be described.

FIG. 21 is a time chart showing the flow of image data obtained by imaging.

In the DVTR shown in FIGS. 1 and 2, the signal charges accumulated in the second green CCD 40 are temporarily held in the vertical transfer path, and the video signal is output from the first green CCD 20. The video signal is output from the second green CCD 40 later. In contrast, the DVTR shown in FIG.
The video signals are simultaneously output from the green CCD 100, the second green CCD 110, and the red and blue CCDs 120. The video signals output simultaneously from the CCDs 100, 110 and 120 are divided into odd fields and even fields and stored in a temporary memory. Thereafter, the odd-numbered field image data and the even-numbered field image data are alternately read from the memory so that recording on a magnetic tape can be performed according to the existing standard.

The CCDs 20, 40 and 60 used in the image pickup section of the DVTR shown in FIG. 1 have two horizontal transfer paths, and can simultaneously output an odd-field video signal and an even-field video signal (FIG. 3). To FIG. 5), whereas the CCD 10 used in the imaging unit of the DVTR shown in FIG.
Numerals 0, 110 and 120 have one horizontal transfer path and alternately output odd-field video signals and even-field video signals. CCD100, 110 and 120
Also has a large number of photoelectric conversion elements, a vertical transfer path is provided adjacent to each column of the photoelectric conversion elements, and the signal charges accumulated in the photoelectric conversion elements are supplied to the horizontal transfer path via the vertical transfer path. Needless to say.

The operation of the image data conversion circuit 16 when the movie recording mode is set will be described.

FIG. 20 is a detailed block diagram of the image data conversion circuit 16. FIG. 22 is a time chart of a video signal output from the first green CCD 100 when movie recording is performed. FIG. 23 is a video signal output from the red and blue CCD 120 when movie recording is performed. It is a time chart. In these figures, the CCD10
A code (G _{1 (1,1)} , R ₁₎ indicating which of the pixels 0 and 120 is a video signal or image data obtained from
_(1,1) , B _(1,1), etc.) are also described corresponding to the video signal or the image data. In the movie recording mode, the switch circuit Sw25 is connected to the M side and the first green CC is connected.
Image data obtained based on the video signal output from D110 and the video signal output from CCD 120 for both red and blue are recorded on magnetic tape 8. In the movie recording mode, the switch circuit Sw26 is also connected to the M terminal side.

Referring to FIGS. 22 and 23, in the case of the movie recording mode, photographing is repeated at 1/60 second cycle.
All the image data obtained from 0, 110 and 120 are input to the image data conversion circuit 16. Image data conversion circuit 16
In step (1), image data of an odd field and image data of an even field are generated from the image data obtained from the first green CCD 100 and output alternately. The image data conversion circuit 16 generates image data of odd fields and image data of even fields from the image data obtained from the red and blue CCDs 120 and outputs them alternately. Specifically, it is as follows.

The M terminal side of the switch circuit Sw21 is connected. The switch circuit Sw23 is ON / OFF controlled so that the image data of the odd field and the image data of the even field alternately pass every 1/60 second. This allows
As shown in FIG. 22, the odd field image data and the even field image data for G are alternately output from the image data conversion circuit 16 every 1/60 second and input to the image data processing circuit 81.

The switch circuit Sw22 is connected to the M terminal side. The switch circuit Sw24 is turned on and off so that the image data of the odd field and the image data of the even field pass alternately every 1/60 second. This allows
As shown in FIG. 23, red and blue odd field image data and even field image data alternately pass through the switch circuit Sw26 every 1/60 second and are provided to the switch circuit Sw27. In the switching circuit Sw27, the R terminal data and the B terminal data are separately obtained by alternately switching the a terminal side and the b terminal side one pixel at a time, and input to the image data processing circuit 81.

Next, the operation of the image data conversion circuit 16 when the still recording mode is set will be described.

FIG. 24 shows the first state when still recording is performed.
Of the video signal output from the green CCD 100
FIG. 25 is a time chart of a video signal output from the second green CCD 110 during still recording, FIG. 26 is a time chart of image data input to the image data processing circuit, and FIG. 5 is a time chart of a video signal output from the CCD 120 for both red and blue when still recording is performed. Here, it is also assumed that the shutter speed is set to 1/60 second.

In still recording, one frame of image data obtained by exposure at the same time is converted so that odd field image data and even field image data alternate.
The data is divided into fields and input to the image data processing circuit 81.
Specifically image data conversion circuit 16 operates as follows (the shutter-release button is pressed, CCD 100 during the period from time t ₆₀ to time t _61, 110 and 120
Has been exposed). Switch circuits Sw21, Sw
22, Sw32 and Sw42 are all connected to the S terminal side.

[0130] With reference to FIG. 24, when the time t _61, all the image data obtained based on the signal charge accumulated in the photoelectric conversion element of CCD100 by exposure between times t ₆₁ from the time t ₆₀ is CCD100 Are input to the image data conversion circuit 16 and supplied to the switch circuit Sw33 via the switch circuit Sw21. The switch circuit Sw33 is a circuit for separating the image data of the odd field and the image data of the even field. The switch circuit Sw33 is connected to the terminal a when the image data of the odd field is supplied, and is connected to the terminal b when the image data of the even field is supplied.

The image data of the odd field separated by the switch circuit Sw33 is supplied to the 1H delay circuit 18. 1
The H delay circuit 18 is a circuit that delays input image data by 1H period (one horizontal scanning period) and outputs the delayed image data. Since the image picked up by the second green CCD 110 is a mirror image, it is inverted in the column direction as described later (1H inversion circuit 1).
7). In order to synchronize with the image data delayed by the inversion, the image data is delayed in the 1H delay circuit 18. The 1H delay circuit 18 has line memories 104 and 1
05 is included. The input of image data to the line memory 104 or 105 is controlled by the switch circuit Sw34, and the line memory 104 is controlled by the switch circuit Sw35.
Alternatively, the output of image data from 105 is controlled. The writing and reading of image data are alternately performed by the line memories 104 and 105, thereby delaying by 1H period. G of odd field output from 1H delay circuit 18
The image data for use is provided to the terminal a of the switch circuit Sw36.

The image data of the even field separated by the switch circuit Sw33 is supplied to the first field memory 106. The first field memory 106 stores one field of image data. The image data of the even field read out from the first field memory 106 is supplied to the terminal b of the switch circuit Sw36.

In the switch circuit Sw36, switching is performed so that image data of odd fields and image data of even fields are output alternately. Switch circuit Sw36
Is passed to the terminal b of the switch circuit Sw32.

[0134] With reference to FIG. 25, when the time t _61, all the image data obtained based on the signal charge accumulated in the photoelectric conversion element of CCD110 by exposure between times t ₆₁ from the time t ₆₀ is CCD110 Are input to the image data conversion circuit 16 and supplied to the 1H inversion circuit 17.
The 1H inversion circuit 17 is a circuit for inverting input image data within one horizontal scanning period. The 1H inversion circuit 17 inverts the mirror image of the subject imaged by the CCD 110 from left to right to become image data representing a correct image. The 1H inversion circuit 17 includes line memories 114 and 115. The line memory 114 is switched by the switch circuit Sw28.
Alternatively, the input of image data to the line memory 114 or 115 is controlled, and the output of image data from the line memory 114 or 115 is controlled by the switch circuit Sw29. Line memory 114
The image data is written alternately and the image data is read out according to the FILO method in steps 115 and 115, whereby the pixels are horizontally inverted within one horizontal scanning line. The G image data output from the 1H inversion circuit 17 is supplied to the switch circuit Sw30.

The switch circuit Sw30 is connected to the odd field G.
This is a circuit for separating the image data for use from the image data for G in the even field. The switch circuit Sw30 is connected to the terminal a when the image data for G in the odd field is supplied, and is connected to the terminal b when the image data for G in the even field is supplied. A second field memory 116 is connected to the terminal a of the switch circuit Sw30, and temporarily stores the odd-numbered rows of image data. The image data output from the second field memory 116 is applied to the terminal a of the switch circuit Sw31. A third field memory 117 is connected to the terminal b of the switch circuit Sw30.
Are connected, and the image data of the even rows is temporarily stored. The image data output from the third field memory 117 is supplied to the terminal b of the switch circuit Sw31.

The switch circuit Sw31 switches between the terminal a and the terminal b every 1/60 second, and alternately outputs G image data in the odd field and G image data in the even field. It is given to the terminal a.

[0137] The switch circuit Sw32 is from time t ₇₁ at time t ₇₃ is the terminal b is connected, the time t ₇₅ from the time t ₇₃
Is connected to the terminal a.

[0138] With reference to FIG. 26, the image through the first odd G field image data switching circuit SW 36, SW32 and Sw25 output from 1H delay circuit 18 between times t ₇₂ from the time t ₇₁ data Output from the conversion circuit 16 and input to the image data processing circuit 81. From time _t72 to time _t73
The first even field image data for G output from the first field memory 106 during the
36, the image data conversion circuit 16 via Sw32 and Sw25.
And is input to the image data processing circuit 81. Second field memory from time t ₇₃ between times t ₇₄ 116
Is output from the image data conversion circuit 16 via the switch circuits Sw31, Sw32 and Sw25, and is output from the image data processing circuit 81.
To enter. The second G for the even-numbered field image data output from the third field memory 117 switch circuits between times t ₇₅ from the time t ₇₄ Sw31, Sw32 and S
The data is output from the image data conversion circuit 16 via w25 and input to the image data processing circuit 81. As a result, the G image data is input to the image data processing circuit 81 over four fields.

[0139] With reference to FIG. 27, when the time t _61, R obtained based on the signal charge accumulated in the photoelectric conversion element of CCD120 by exposure between times t ₆₁ from the time t ₆₀
And image data for B and B (including both odd and even fields) are output from the CCD 120, input to the image data conversion circuit 16, and applied to the switch circuit Sw37 via the switch circuit Sw22.

The switch circuit Sw37 separates the image data of the odd field from the image data of the even field. The image data of the odd field is output from the terminal a, and the image data of the even field is output from the terminal b. You.

The odd field image data is applied to the 1H delay circuit 19 and the fourth field memory 124. The 1H delay circuit 19, like the 1H delay circuit 18,
This is to prevent synchronization deviation due to inversion processing in the H inversion circuit 17. The 1H delay circuit 19 includes line memories 125 and 126. The input of image data to the line memory 125 or 126 is controlled by the switch circuit Sw38, and the line memory 12 is controlled by the switch circuit Sw39.
The output of image data from 5 or 126 is controlled. The writing and reading of image data are alternately performed in the line memories 125 and 126, so that the delay is delayed by 1H period. G of odd field output from 1H delay circuit 19
The image data for use is provided to the terminal b of the switch circuit Sw40. The fourth field memory 124 temporarily stores the input image data. The image data output from the fourth field memory 124 is supplied to the terminal a of the switch circuit Sw40. The image data of the odd field that has passed through the switch circuit Sw40 is provided to the terminal a of the switch circuit Sw41.

The fifth field memory 127 also temporarily stores the input image data. Fifth field memory
The image data output from the switch circuit Swb b
It is given to the terminal side.

The switch circuit Sw41 is controlled so as to switch between the terminal a and the terminal b every field period, so that the image data for R and B in the odd field and the image data for R and B in the even field are alternately switched. Is output.

[0144] With reference to FIG. 28, the odd field image data switching circuit for R and B output from the 1H delay circuit 19 between times t ₇₂ from the time t ₇₁ SW40 and Sw
The signal is supplied to the switch circuit Sw27 via 26. Time t ₇₂
R and B for the even-numbered field image data are output from the fifth field memory 127 is supplied to the switch circuit Sw27 via the switching circuit SW41, and Sw26 between times t ₇₃ from. The fourth time between time t ₇₃ and time t ₇₄
The odd-numbered field image data for R and B output from the field memory 124 of FIG.
It is supplied to the switch circuit Sw27 via 41 and Sw26. R and B for the even-numbered field image data are output from the fifth field memory 127 from the time t ₇₄ between times t ₇₅ is supplied to the switch circuit Sw27 via the switching circuit Sw41 and SW26.

As a result, R and B image data are obtained over four fields. The R and B image data obtained over four fields is stored in a switch circuit Sw27.
Is divided into image data and B image data and input to the image data processing circuit 81.

In the digital video tape recorder shown in FIGS. 1 and 2, the signal charges need not be delayed by temporarily holding the signal charges in the vertical transfer path of the CCD 40. As in the digital video tape recorder shown in FIG.
All data are read out simultaneously from 60 and temporarily stored in the image memory.
The image data of two frames may be divided into four fields by controlling the reading of the image memory.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a part of an electric configuration of a digital video tape recorder.

FIG. 2 is a block diagram showing a part of an electrical configuration of the digital video tape recorder.

FIG. 3 shows a configuration of a CCD.

FIG. 4 shows a configuration of a CCD.

FIG. 5 shows a configuration of a CCD.

FIG. 6 shows a pseudo pixel array.

FIG. 7 is a block diagram illustrating an electrical configuration of an image data conversion circuit.

FIG. 8 is a time chart for explaining a recording method of the digital video tape recorder shown in FIGS. 1 and 2;

FIG. 9 shows a procedure for dividing an image for one frame into four field images.

FIG. 10 is a time chart of video signals and image data in the case of movie recording.

FIG. 11 is a time chart of video signals and image data in the case of movie recording.

FIG. 12 is a time chart of video signals and image data in the case of still recording.

FIG. 13 is a time chart of video signals and image data in the case of still recording.

FIG. 14 shows image data divided into four fields.

FIG. 15 is a time chart of video signals and image data in the case of still recording.

FIG. 16 is a block diagram showing an electrical configuration of an image data reproducing device.

FIG. 17 shows a procedure for forming an image of one frame from four field images.

18A shows a recording format of a magnetic tape, and FIG. 18B shows a track format.

FIG. 19 is a block diagram showing another embodiment and showing a part of an electric configuration of a digital video tape recorder.

FIG. 20 is a block diagram illustrating an electrical configuration of an image data conversion circuit.

FIG. 21 is a time chart for explaining a recording method of the digital video tape recorder shown in FIG.

FIG. 22 is a time chart of video signals and image data in the case of movie recording.

FIG. 23 is a time chart of video signals and image data in the case of movie recording.

FIG. 24 is a time chart of video signals and image data in the case of still recording.

FIG. 25 is a time chart of video signals and image data in still recording.

FIG. 26 shows image data divided into four fields.

FIG. 27 is a time chart of video signals and image data in still recording.

FIG. 28 shows image data divided into four fields.

[Explanation of symbols]

11 CCD drive circuit 20, 40, 60, 100, 110, 120 CCD 15, 16 Image data conversion circuit 32, 53, 72, 73, 83, 85, 94B, 95B, 106, 116, 11
7, 124, 127 Field memories 52, 104, 105, 114, 115, 125, 126 Line memories Sw1, Sw2, Sw3, Sw4, Sw5, Sw6, S
w7, Sw8, Sw9, Sw10, Sw21, Sw22, Sw
23, Sw24, Sw25, Sw26, Sw27, Sw28, Sw2
9, Sw30, Sw31, Sw32, Sw33, Sw34, Sw3
5, Sw36, Sw37, Sw38, Sw39, Sw40, Sw41
Switch circuit

Claims (26)

[Claims] The size of a recording area for recording frame-based image data representing an image of one frame on a recording medium and the recording time required for recording the frame-based image data are determined in advance. In an apparatus which divides data into two field unit image data and records the data in the recording area, image data having a data amount of n times (n is a positive integer of 2 or more) the frame unit image data for one frame of image. An imaging means for outputting image data representing a subject image obtained by imaging the subject using the solid-state electronic imaging element, and an image data output from the imaging means. Is divided by the dividing means into 2n pieces of the field unit image data representing one frame image. A storage unit for temporarily storing (2n-1) field unit image data of the 2n field unit image data, and (2n-1) field unit image data stored in the storage unit, Reading means for sequentially reading from the storage means for each field unit image data, and one of the 2n field unit image data divided by the division means except for the field unit image data stored in the storage means The field unit image data and the (2n-1) field image data read from the storage unit by the reading unit are sequentially recorded on the recording medium over n recording areas with n times the recording time. Recording apparatus for recording digital image data. 2. An image of one frame is represented by unit image data having a predetermined image data amount, and a size of a recording area of the unit image data and a recording time required for recording the unit image data are respectively predetermined. In a digital video tape recorder that sequentially records the unit image data on a recording medium at the period of the recording time, the photoelectric conversion elements that generate image data of the data amount of the unit image data are arranged in a column direction and a row direction. The first solid-state electronic imaging device arranged in the direction, and the photoelectric conversion device for generating image data of the data amount of the unit image data are spatially m / 2 with the photoelectric conversion device of the first solid-state electronic imaging device. A second solid-state electronic imaging device arranged in a column direction and a row direction with a pixel shift, and is exposed simultaneously with the second solid-state electronic imaging device. Driving the first solid-state electronic imaging device as described above, and obtaining the first image data, the odd-numbered rows, and the first image data obtained based on the signal charges accumulated in the photoelectric conversion elements in one of the odd-numbered and even-numbered rows. A first driving means for driving the first solid-state electronic image pickup device so that the second image data obtained based on the signal charges accumulated in the photoelectric conversion elements in the other one of the even-numbered lines are simultaneously output; Solid-state image pickup device driving means for driving the second solid-state image pickup device so as to be exposed simultaneously with the first solid-state image pickup device, and for driving the photoelectric conversion element in one of an odd-numbered row and an even-numbered row And the fourth image data obtained based on the signal charges stored in the photoelectric conversion element in the other row of the odd-numbered row and the even-numbered row. simultaneous The first solid-state image pickup device is driven by the second solid-state image pickup device driving means for driving the second solid-state image pickup device so as to be outputted, and the first solid-state image pickup device driving means. The first image data and the second image data output from the second solid-state imaging device and the third solid-state imaging device output from the second solid-state imaging device under the driving of the second solid-state electronic imaging device driving means. Image data extracting means for sequentially extracting the image data and the fourth image data, and the image data extracted by the image data extracting means for the recording time of two times over two unit image data recording areas.
Recording control means for sequentially recording on the recording medium in twice the time,
Digital video tape recorder equipped with. 3. At least the second solid-state electronic image pickup device has a signal charge holding section for temporarily holding signal charges accumulated in the photoelectric conversion element, and the image data extracting means includes: A first image memory for temporarily storing the second image data output from the first solid-state electronic imaging device;
A second image memory for temporarily storing the fourth image data output from the second solid-state electronic imaging device, and the first image data, the second image data, the third image data, The first solid-state electronic imaging device, the second solid-state electronic imaging device, the first image memory, and the second solid-state electronic imaging device so that the fourth image data can be obtained in order.
3. A digital video tape recorder according to claim 2, further comprising control means for controlling said image memory. 4. An image data extracting means, comprising: a first image memory for temporarily storing the second image data output from the first solid-state electronic imaging device; and an output from the second solid-state electronic imaging device. A second image memory for temporarily storing the third image data to be output, a third image memory for temporarily storing the fourth image data output from the second solid-state electronic imaging device, and the first image memory. The first solid-state electronic imaging device, the second solid-state electronic imaging device, and the second solid-state imaging device so that the image data, the second image data, the third image data, and the fourth image data are sequentially obtained. 3. The digital video tape recorder according to claim 2, further comprising control means for controlling one image memory, said second image memory, and said third image memory. 5. An image of one frame is represented by unit image data having a predetermined image data amount, and a size of a recording area of the unit image data and a recording time required to record the unit image data are predetermined. ,
A digital video tape recorder for sequentially recording the unit image data on a recording medium at a cycle of the recording time, comprising a filter for transmitting green light on a light receiving surface, and image data having a data amount of the unit image data. A first solid-state electronic imaging device in which photoelectric conversion elements for generating the image data are arranged in a column direction and a row direction, a filter for passing green light on a light-receiving surface, and image data having a data amount of the unit image data. The generated photoelectric conversion element is the first
A second solid-state electronic imaging device spatially displaced by m / 2 pixels from the solid-state electronic imaging device in the column direction and the row direction, a filter transmitting red light and a filter transmitting blue light. A photoelectric conversion element that is provided alternately and generates hybrid image data of the data amount of the unit image data is spatially integrated with one of the first solid-state electronic imaging device and the second solid-state electronic imaging device. The third solid-state electronic imaging device arranged in the column direction and the row direction, the second solid-state electronic imaging device, and the first solid-state electronic device so as to be exposed simultaneously with the third solid-state electronic imaging device. The first image data obtained by driving the image sensor and based on the signal charges stored in the photoelectric conversion element in one of the odd and even rows and the other of the odd and even rows the above A first solid-state electronic imaging device driving means for driving the first solid-state electronic imaging device so that the second image data obtained based on the signal charges accumulated in the photoelectric conversion device are simultaneously output; The second solid-state electronic imaging device is driven so as to be exposed simultaneously with the first solid-state electronic imaging device and the third solid-state electronic imaging device, and the photoelectric conversion element in one of an odd-numbered row and an even-numbered row is driven. And the fourth image data obtained based on the signal charges stored in the photoelectric conversion element in the other row of the odd-numbered row and the even-numbered row. The second solid-state image pickup device driving means for driving the second solid-state image pickup device so as to be output simultaneously, the first solid-state image pickup device and the second solid-state image pickup device are simultaneously exposed. Accordingly, the fifth image obtained based on the signal charge stored in the photoelectric conversion element in one of the odd-numbered row and the even-numbered row, by inputting the hybrid image data output from the third solid-state electronic imaging device. A first image data extracting means for alternately and repeatedly outputting twice data and sixth image data obtained based on the signal charges stored in the other photoelectric conversion element of the odd-numbered row or the even-numbered row, The first image data and the second image data output from the first solid-state electronic imaging device under the driving of the first solid-state electronic imaging device driving means, and the driving of the second solid-state electronic imaging device Second image data extracting means for sequentially outputting the third image data and the fourth image data output from the second solid-state electronic imaging device under the drive of the means. The fifth image data and the sixth image data output from the first image data extracting means, and the first image data and the second image output from the second image data extracting means. First unit image data is generated from the data, and the fifth image data and the sixth image data output from the first unit image data extracting unit and the second unit image data output from the second image data extracting unit. The third image data and the fourth image data
Unit image data generating means for generating the second unit image data from the image data, and the first unit image data and the second unit image data generated by the unit image data generating means in two units. A digital video tape recorder, comprising: recording control means for recording data on the recording medium in a double recording time over an image data recording area. 6. At least the second solid-state electronic image pickup device has a signal charge holding section for temporarily holding signal charges accumulated in the photoelectric conversion element, and the second image data extracting means includes: A first image memory for temporarily storing the second image data output from the first solid-state electronic imaging device, and a temporary storage for the fourth image data output from the second solid-state electronic imaging device; A second image memory, the first image data, the second image data, the third image data,
The first solid-state electronic imaging device, the second solid-state electronic imaging device, the first image memory, and the second image data so that the image data and the fourth image data are sequentially obtained.
First control means for controlling the image memory of
A first image data extracting unit configured to temporarily store fifth image data output from the third solid-state electronic imaging device; a third image memory output from the third solid-state electronic imaging device; A fourth image memory for temporarily storing the sixth image data, the third solid-state electronic image sensor, the third image memory, and the third image memory so that the fifth image data and the sixth image data are obtained alternately. 6. The digital video tape recorder according to claim 5, further comprising second control means for controlling said fourth image memory. 7. A first image memory for temporarily storing the second image data output from the first solid-state electronic imaging device, wherein the second image data extracting means temporarily stores the second image data. A second image memory for temporarily storing the third image data output from the element, a third image memory for temporarily storing the fourth image data output from the second solid-state electronic imaging element, and The first image data, the second image data, the third image data, and the fourth image data so that the fourth image data can be sequentially obtained.
Control means for controlling the solid-state electronic image pickup device, the second solid-state electronic image pickup device, the first image memory, the second image memory, and the third image memory. A fourth image memory for temporarily storing fifth image data output from the third solid-state electronic imaging device, and a sixth image data output from the third solid-state electronic imaging device. The third image sensor, the fourth image memory, and the fifth image so that the fifth image memory temporarily stores the fifth image data and the sixth image data alternately. 6. The digital video tape recorder according to claim 5, further comprising second control means for controlling a memory. 8. An image of one frame is represented by unit image data having a predetermined image data amount, and a size of a recording area of the unit image data and a recording time required for recording the unit image data are predetermined. In a digital video tape recorder that sequentially records the unit image data on a recording medium at the period of the recording time, a photoelectric conversion element that outputs image data of the data amount of the unit image data has column and row directions. A first solid-state electronic imaging device arranged in a large number in the direction, and a photoelectric conversion device for generating and outputting image data having a data amount of the unit image data are spatially arranged with the first solid-state electronic imaging device.
A second solid-state electronic image sensor, which is arranged in a large number in the column direction and the row direction with a shift of / 2 pixel, is obtained by simultaneously exposing the first and second solid-state electronic image sensors. Image data to be output based on signal charges accumulated in one of the odd-numbered rows and even-numbered rows of the first solid-state electronic imaging device. Image data output based on the signal charges accumulated in the photoelectric conversion elements in the other rows of the odd-numbered rows and the even-numbered rows of the solid-state electronic imaging device, and the odd-numbered rows of the second solid-state electronic imaging device And third image data output based on the signal charges stored in the photoelectric conversion elements of one of the even rows, and the other of the odd and even rows of the second solid-state electronic imaging device. line Image data output from the first solid-state electronic imaging device and the second solid-state electronic imaging device so that fourth image data output based on the signal charges accumulated in the photoelectric conversion element is obtained in order. Image data extracting means for sequentially extracting image data, and recording control means for recording the image data sequentially extracted by the image data extracting means on the recording medium in a double recording time over two unit image data recording areas. Digital
Video tape recorder. 9. The image data extracting means includes: a first image memory for temporarily storing the second image data output from the first solid-state electronic image sensor; and an output from the second solid-state electronic image sensor. A second image memory for temporarily storing the third image data to be output, a third image memory for temporarily storing the fourth image data output from the second solid-state electronic imaging device, and the first image memory. The first solid-state electronic imaging device, the second solid-state electronic imaging device, the second solid-state electronic imaging device, and the second image data, the second image data, the third image data, and the fourth image data are sequentially obtained. First
9. A control means for controlling the first image memory, the second image memory, and the third image memory.
2. A digital video tape recorder according to claim 1. 10. An image of one frame is represented by unit image data having a predetermined image data amount, and a size of a recording area of the unit image data and a recording time required to record the unit image data are predetermined. A digital video tape recorder for sequentially recording the unit image data on a recording medium at a period of the recording time, a filter for transmitting green light on a light receiving surface, and a data amount of the unit image data; A first solid-state electronic imaging device in which photoelectric conversion elements for generating image data are arranged in a column direction and a row direction; a light-receiving surface provided with a filter for transmitting green light; A photoelectric conversion element for generating data is spatially displaced by m / 2 pixels from the first solid-state electronic imaging element and arranged in a column direction and a row direction. A second solid-state electronic imaging device arranged in a row, and a photoelectric conversion element that alternately includes a filter that transmits red light and a filter that transmits blue light, and generates hybrid image data having the data amount of the unit image data. Are arranged in the column direction and the row direction so as to be spatially coincident with one of the first solid-state electronic imaging device and the second solid-state electronic imaging device; The hybrid image data output from the third solid-state electronic imaging device by being exposed at the same time as the solid-state electronic imaging device and the second solid-state electronic imaging device is input to the third solid-state electronic imaging device. Fifth image data obtained based on the signal charges accumulated in the photoelectric conversion elements in one of the odd rows and the even rows, and the photoelectric conversion elements in the other row of the odd rows and the even rows First image data extracting means for alternately and repeatedly outputting the sixth image data obtained based on the accumulated signal charges twice, and one of odd-numbered rows or even-numbered rows of the first solid-state electronic imaging device The first image data output based on the signal charges stored in the photoelectric conversion element, and the first image data stored in the photoelectric conversion element in the other of the odd and even rows of the first solid-state electronic imaging device. The second image data is output based on the signal charge that has been output, and is output based on the signal charge that is accumulated in the photoelectric conversion element in one of the odd and even rows of the second solid-state electronic imaging device. Third image data, and fourth image data output based on the signal charges accumulated in the photoelectric conversion elements in the other of the odd and even rows of the second solid-state electronic imaging device. The second image data extracting means for sequentially extracting, the fifth image data and the sixth image data outputted from the first image data extracting means, and the above-mentioned outputted from the second image data extracting means. First unit image data is generated from the first image data and the second image data, and the fifth image data and the sixth image data output from the first unit image data extracting means; A unit image data generating unit that generates second unit image data from the third image data and the fourth image data output from the second image data extracting unit; and a unit image data generating unit that generates the second unit image data. The obtained first unit image data and the second unit image data are transferred over two unit image data recording areas by 2
Recording control means for recording on the recording medium in twice the recording time,
Digital video tape recorder equipped with. 11. The second solid-state electronic image pickup device has a signal charge holding section for temporarily holding signal charges accumulated in the photoelectric conversion element, and the second image data extracting means includes: A first image memory that temporarily stores either the first image data or the second image data output from the first solid-state electronic image sensor, and is output from the second solid-state electronic image sensor. A second image memory for temporarily storing either the third image data or the fourth image data, the first image data, or the second image memory;
The first solid-state electronic image pickup device, the second solid-state electronic image pickup device, the first image memory and the first image memory so that the image data, the third image data, and the fourth image data are sequentially obtained. A first control unit for controlling a second image memory, wherein the first image data extracting unit temporarily stores fifth image data output from the third solid-state electronic imaging device; 3rd image memory, 3rd above
A fourth image memory for temporarily storing sixth image data output from the solid-state electronic imaging device, and the third solid-state electronic device so that the fifth image data and the sixth image data are obtained alternately. 11. The digital video tape recorder according to claim 10, further comprising second control means for controlling an image pickup device, said third image memory, and said fourth image memory. 12. The size of a recording area for recording frame-based image data representing one frame of image on a recording medium and the recording time required for recording the frame-based image data are determined in advance. In an apparatus which divides data into two field unit image data and records the data in the recording area, image data having a data amount of n times (n is a positive integer of 2 or more) the frame unit image data for one frame of image. An imaging means for outputting image data representing a subject image obtained by imaging the subject using the solid-state electronic imaging element, and an image data output from the imaging means. Is divided into 2n pieces of the field unit image data representing one frame of image, and 2n pieces of the field unit image data are divided into Image data extracting means for sequentially extracting each of the field unit image data, and 2n pieces of the field unit image data extracted from the extracting means on the recording medium in n times of recording time over n recording areas. A recording device for digital image data, comprising recording control means for sequentially recording. 13. An image data obtained from a solid-state electronic image pickup device which generates n times (n is a positive integer of 2 or more) times the frame unit image data representing one frame image for one frame image. Image data input means for inputting the image data, and the image data input by the image data input means are divided into 2n field unit images each representing one frame of image, and 2n field unit image data are divided into the field unit images. An image data processing device comprising: image data extracting means for sequentially extracting each data. 14. The size of a recording area for recording frame-based image data representing one frame of image on a recording medium and a recording time required for recording the frame-based image data are predetermined. In an apparatus which divides data into two field unit image data and records the data in the recording area, image data having a data amount of n times (n is a positive integer of 2 or more) the frame unit image data for one frame of image. Image data representing a subject image obtained by imaging a subject using an image pickup means including a solid-state electronic image sensor for generating the image data, and obtaining the obtained image data by using 2n number of the above-mentioned fields each representing one frame of image. (2n-1) field unit images among the 2n field unit image data divided into unit image data. The image data is temporarily stored, and the (2n-1) stored field unit image data are sequentially read out for each of the field unit image data, and the temporarily stored field of the 2n field unit image data is read out. One field unit image data excluding the unit image data and (2n-1) read out field image data are sequentially recorded on the recording medium over n recording areas with n times the recording time. , Digital image data recording method. 15. An image of one frame is represented by unit image data having a predetermined image data amount, and a size of a recording area of the unit image data and a recording time required to record the unit image data are predetermined. In a digital video tape recorder that sequentially records the unit image data on a recording medium at the period of the recording time, the photoelectric conversion elements that generate image data of the data amount of the unit image data are arranged in a column direction and a row direction. The first solid-state electronic imaging device arranged in the direction and the photoelectric conversion device are spatially separated from the photoelectric conversion device of the first solid-state electronic imaging device so as to generate image data having a data amount of the unit image data. simultaneously exposing the second solid-state electronic imaging devices arranged in the column direction and the row direction with a shift of m / 2 pixels,
First image data obtained based on the signal charges stored in the photoelectric conversion elements in one of the odd rows and the even rows, and stored in the photoelectric conversion elements in the other row of the odd rows and the even rows. The first solid-state electronic image pickup device is driven so that the second image data obtained based on the signal charge is output simultaneously, and the first solid-state electronic image pickup device is stored in the photoelectric conversion element in one of the odd and even rows. The third image data obtained based on the obtained signal charges and the fourth image data obtained based on the signal charges stored in the photoelectric conversion elements in the other of the odd and even rows are simultaneously output. Driving the second solid-state electronic imaging device so that the first image data and the second image data output from the first solid-state electronic imaging device and the second solid-state electronic imaging device The third image data and the fourth image data output from the element are sequentially extracted, and the extracted image data is stored in the recording medium over two unit image data recording areas in a time twice as long as the recording time. Digital image data recording method that records data sequentially. 16. At least the second solid-state electronic image pickup device has a signal charge holding section for temporarily holding signal charges accumulated in the photoelectric conversion element, and an output from the first solid-state electronic image pickup device is provided. Either the first image data or the second image data is temporarily stored in a first image memory, and the third image data or the third image data output from the second solid-state electronic imaging device is stored. One of the fourth image data is temporarily stored in a second image memory, and the first image data, the second image data, and the third image data are stored.
The first solid-state electronic imaging device, the second solid-state electronic imaging device, the first image memory, and the second image memory are controlled so that the image data and the fourth image data are sequentially obtained. 16. The digital image data recording method according to claim 15, wherein: 17. The method according to claim 17, wherein the second image data output from the first solid-state electronic image sensor is temporarily stored in a first image memory, and the third image data output from the second solid-state electronic image sensor is stored in the first image memory. Temporarily storing the image data in the second image memory,
The fourth image data output from the second solid-state electronic image sensor is temporarily stored in a third image memory, and the first image data is stored in the third image memory.
The first solid-state electronic imaging device, the second solid-state electronic imaging device, and the second solid-state imaging device so that the image data, the second image data, the third image data, and the fourth image data are sequentially obtained. 16. The digital image data recording method according to claim 15, wherein the first image memory, the second image memory, and the third image memory are controlled. 18. An image of one frame is represented by unit image data having a predetermined image data amount, and a size of a recording area of the unit image data and a recording time required to record the unit image data are predetermined. A digital video tape recorder for sequentially recording the unit image data on a recording medium at a period of the recording time, comprising a filter for transmitting green light on a light receiving surface, and an image having a data amount of the unit image data. A first solid-state electronic imaging device in which photoelectric conversion elements for generating data are arranged in a column direction and a row direction; and a filter having a light-receiving surface for transmitting green light, and an image having a data amount of the unit image data. A photoelectric conversion element for generating data is spatially displaced by m / 2 pixels from the first solid-state electronic imaging element and arranged in a column direction and a row direction. A second solid-state electronic imaging device arranged in a row, a photoelectric filter which alternately includes a filter which transmits red light and a filter which transmits blue light, and generates hybrid image data having a data amount of the unit image data. A third solid-state electronic imaging device in which a conversion element is spatially aligned with one of the first solid-state electronic imaging device and the second solid-state electronic imaging device and arranged in a column direction and a row direction; At the same time, the first image data obtained based on the signal charges stored in the photoelectric conversion elements in one of the odd and even rows, and the other of the odd and even rows. The first solid-state electronic imaging device is driven so that the second image data obtained based on the signal charges stored in the conversion element is simultaneously output, and the first solid-state electronic imaging device is driven in one of an odd-numbered row and an even-numbered row. light Third image data obtained based on the signal charges stored in the conversion element, and fourth image data obtained based on the signal charges stored in the photoelectric conversion element in the other of the odd and even rows And the second solid-state image pickup device is driven so as to output the same at the same time, and based on the signal charges accumulated in one of the odd-numbered rows or even-numbered rows of the third solid-state electronic image pickup device. The fifth image data obtained by the above and the sixth image data obtained based on the signal charges stored in the other photoelectric conversion element of the odd-numbered row or the even-numbered row are alternately obtained twice, and the first image data is obtained. The first image data and the second image data output from the solid-state electronic imaging device, and the third image data and the fourth image data output from the second solid-state electronic imaging device Are sequentially obtained, and first unit image data is generated from the fifth image data, the sixth image data, the first image data, and the second image data, and the fifth image data and the Generating second unit image data from the sixth image data, the third image data, and the fourth image data, and generating the first unit image data;
Of the unit image data and the second unit image data
A digital image data recording method for recording on the recording medium in a double recording time over a unit image data recording area. 19. At least the second solid-state electronic image pickup device has a signal charge holding section for temporarily holding signal charges accumulated in the photoelectric conversion element, and an output from the first solid-state electronic image pickup device is provided. Either the first image data or the second image data is temporarily stored in a first image memory, and the third image data or the third image data output from the second solid-state electronic imaging device is stored. One of the fourth image data is temporarily stored in a second image memory, and the first image data, the second image data, and the third image data are stored in the second image memory.
The first solid-state electronic imaging device, the second solid-state electronic imaging device, the first image memory, and the second image data so that the image data and the fourth image data are sequentially obtained.
And temporarily stores fifth image data output from the third solid-state electronic image sensor in the third image memory, and stores sixth image data output from the third solid-state electronic image sensor in the third solid-state image sensor. The image data is temporarily stored in a fourth image memory, and the third solid-state electronic imaging device, the third image memory, and the third image memory are arranged so that the fifth image data and the sixth image data are obtained alternately. 19. The method for recording digital image data according to claim 18, wherein the method controls a fourth image memory. 20. The second image data output from the first solid-state electronic image sensor is temporarily stored in a first image memory, and the third image data output from the second solid-state electronic image sensor is stored in the first image memory. Temporarily storing the image data in the second image memory,
The fourth image data output from the second solid-state electronic image sensor is temporarily stored in a third image memory, and the first image data is stored in the third image memory.
The first solid-state electronic imaging device, the second solid-state electronic imaging device, and the second solid-state imaging device so that the image data, the second image data, the third image data, and the fourth image data are sequentially obtained. Controlling the first image memory, the second image memory, and the third image memory, and temporarily storing fifth image data output from the third solid-state electronic imaging device in a fourth image memory; The sixth image data output from the third solid-state electronic image sensor is temporarily stored in a fifth image memory, and the fifth image data and the sixth image data are alternately obtained. 19. The digital image data recording method according to claim 18, wherein the method controls the third solid-state electronic image sensor, the fourth image memory, and the fifth image memory. 21. An image of one frame is represented by unit image data having a predetermined image data amount, and a size of a recording area of the unit image data and a recording time required for recording the unit image data are respectively predetermined. A digital video tape recorder for sequentially recording the unit image data on a recording medium at a cycle of the recording time, wherein a large number of image data having a data amount of the unit image data are arranged in a column direction and a row direction. The first solid-state image pickup device and the photoelectric conversion device are spatially separated from the first solid-state image pickup device so as to generate and output image data having a data amount of the unit image data.
A large number of second solid-state electronic imaging devices arranged in a column direction and a row direction with a shift of two pixels are simultaneously exposed to light, and the photoelectric conversion device of one of an odd-numbered row and an even-numbered row of the first solid-state electronic imaging device is exposed. The first image data is output based on the signal charges stored in the first solid-state electronic image pickup device, and is based on the signal charges stored in the photoelectric conversion elements in the other of the odd and even rows of the first solid-state electronic imaging device. Image data to be output as a second image data, and a third image to be output based on signal charges accumulated in the photoelectric conversion element in one of the odd and even rows of the second solid-state electronic imaging device. data,
And the fourth image data output in order based on the signal charges accumulated in the photoelectric conversion elements in the other rows of the odd rows and the even rows of the second solid-state electronic imaging device. The image data output from the first solid-state electronic image pickup device and the second solid-state electronic image pickup device is extracted, and the extracted image data is recorded on the recording medium in a double recording time over two unit image data recording areas. A method of recording digital image data. 22. The first image data output from the first solid-state electronic image sensor is temporarily stored in a first image memory, and the third image data output from the second solid-state electronic image sensor is temporarily stored in a first image memory. Temporarily storing the image data in the second image memory,
The fourth image data output from the second solid-state electronic image sensor is temporarily stored in a third image memory, and the first image data is stored in the third image memory.
The first solid-state electronic imaging device, the second solid-state electronic imaging device, the second solid-state electronic imaging device, and the second image data, the second image data, the third image data, and the fourth image data are sequentially obtained. 22. The digital image data recording method according to claim 21, wherein the first image memory, the second image memory, and the third image memory are controlled. 23. An image of one frame is represented by unit image data having a predetermined image data amount, and a size of a recording area of the unit image data and a recording time required for recording the unit image data are predetermined. A digital video tape recorder for sequentially recording the unit image data on a recording medium at a period of the recording time, a filter for transmitting green light on a light receiving surface, and a data amount of the unit image data; A first solid-state electronic imaging device in which photoelectric conversion elements for generating image data are arranged in a column direction and a row direction, a filter for transmitting green light on a light receiving surface, and a data amount of the unit image data; A photoelectric conversion element for generating image data is spatially shifted by m / 2 pixels from the first solid-state electronic imaging element in a column direction and a row direction. A second solid-state electronic imaging device arranged and a photoelectric conversion device having a filter that transmits red light and a filter that transmits blue light alternately form hybrid image data of the data amount of the unit image data. A third solid-state electronic imaging device in which a photoelectric conversion element to be generated is spatially aligned with one of the first solid-state electronic imaging device and the second solid-state electronic imaging device and arranged in a column direction and a row direction. And a fifth image data obtained based on signal charges stored in the photoelectric conversion elements of one of the odd-numbered rows and the even-numbered rows output from the third solid-state electronic imaging element. And sixth image data obtained based on the signal charges accumulated in the photoelectric conversion elements in the other row of the odd-numbered row and the even-numbered row are alternately obtained twice,
The first image data and the second image data output from the first solid-state electronic imaging device, and the third image data and the fourth image output from the second solid-state electronic imaging device Data is obtained in order, and first unit image data is generated from the fifth image data and the sixth image data and the first image data and the second image data. The second unit image data is generated from the sixth image data, the third image data, and the fourth image data, and the generated first unit image data and the second unit image data are generated. A digital image data recording method in which recording is performed on the recording medium in a double recording time over two unit image data recording areas. 24. The second solid-state electronic image pickup device has a signal charge holding section for temporarily holding signal charges accumulated in the photoelectric conversion element, and is output from the first solid-state electronic image pickup device. Either the first image data or the second image data is temporarily stored in a first image memory, and the third image data or the second image data output from the second solid-state electronic image sensor is stored. One of the four image data is temporarily stored in a second image memory, and the first image data, the second image data, the third image data, and the fourth image data are sequentially obtained. like,
Controlling the first solid-state electronic image pickup device, the second solid-state electronic image pickup device, the first image memory and the second image memory, and outputting the fifth solid-state image pickup device output from the third solid-state electronic image pickup device Temporarily storing the image data in a third image memory,
The sixth image data output from the third solid-state electronic image sensor is temporarily stored in a fourth image memory, and the fifth image data and the sixth image data are alternately obtained. 25. The image processing device according to claim 24, wherein the controller controls the third solid-state electronic image sensor, the third image memory, and the fourth image memory.
Recording method of the digital image data described in 1. 25. The size of a recording area for recording frame-based image data representing one frame of image on a recording medium and the recording time required for recording the frame-based image data are predetermined, and In an apparatus which divides data into two field unit image data and records the data in the recording area, image data having a data amount of n times (n is a positive integer of 2 or more) the frame unit image data for one frame of image. Image data representing a subject image obtained by imaging a subject using an image pickup means including a solid-state electronic image sensor for generating the image data, and obtaining the obtained image data by using 2n number of the above-mentioned fields each representing one frame of image. Divided into unit image data, 2n pieces of the field unit image data are sequentially extracted for each of the field unit image data, A method for recording digital image data, wherein 2n pieces of the extracted field unit image data are sequentially recorded on the recording medium over n recording areas for n times the recording time. 26. Image data of one frame image is obtained from a solid-state electronic imaging device which generates image data having a data amount of n times (n is a positive integer of 2 or more) frame unit image data representing one frame image. An image data processing method, wherein the obtained image data is divided into 2n field-unit images each representing one frame of image, and 2n field-unit image data are sequentially extracted for each of the field-unit image data.