JPS63237687A - Stereoscopical image photographing device - Google Patents

Abstract

PURPOSE:To photograph a stereoscopical image picked at right and left view points in every one field scanning time by outputting the light, which is obtained from first and second input ports alternately, from an output port based on the vertical synchronizing signal of a video signal. CONSTITUTION:An electronic shutter control signal generator 9 extracts the vertical synchronizing signal from the video signal to generate a control signal which alternately opens and closes right and left electronic shutters 7b and 7a correspondingly to the odd field and the even field in every one field scanning time, and electronic shutters 7a and 7b are alternately opened and closed in accordance with this control signal. Images of light beams obtained from input ports 4a and 4b are alternately formed on an image pickup element 16 from an output port 8 through a lens 15 of a video camera 14 and are converted to an electric signal by the image pickup element 16 and are recorded on a video tape 17. Thus, scenes of an object 1 viewed from one side of right and left eyes (input ports 4b and 4a) are alternately recorded on the video tape 17 in every one field scanning time.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a stereoscopic image capturing device for realizing stereoscopic image capturing in a video camera.

[Conventional technology]

FIG. 3 is a configuration explanatory diagram showing a conventional stereoscopic image capturing method. In the figure, 1 is the subject and 2a.

2bG, t11m shadow camera, 2a is for the left side, 2
b is for the right side. Reference numeral 3 designates an editing VTR for synthesizing and editing video signals shot by the shooting cameras 2a and 2b.

In such a configuration, the three-dimensional object 1 is simultaneously photographed by the photographing cameras 2a and 2b.

The two videotapes obtained from the enemy cameras 2a and 2b in this way are edited into one 3D videotape by alternately combining and editing them while synchronizing them with an editing VTR. Ru. Play this videotape
By opening and closing the left and right viewing windows at appropriate intervals using a stereoscopic scope, etc., the image obtained from the photographing camera 2a is visible only to the human's left eye, and the image obtained from the photographing camera 2b is visible only to the human's right eye. By performing a display operation, the viewer can view an image with a pseudo-three-dimensional effect.

[Problem 3 to be Solved by the Invention] As explained above, in the conventional stereoscopic video imaging device, the imaging cameras 2a correspond to the left and right eyes of a human being.

Two cameras 2b are required, and two cameras 2a and 2 are required.
Due to b, the enemy had to appear at the same time. Moreover,
There was a problem in that a large amount of time had to be spent on editing using V-cho R3 for synthetic editing, which required too much technical effort and cost.

The present invention is intended to solve the above-mentioned problems in the prior art, and aims to provide a stereoscopic imaging @photography device that has a simple configuration and can easily record a stereoscopic video on a videotape. .

[Means for solving problems]

A stereoscopic video imaging device according to the present invention includes first and second input ports corresponding to the left and right eyes of a human being, and an output port for outputting input light input to the input ports, and includes a video output signal of a video camera. According to the vertical synchronization signal at , the input light input to the first input port and the second input port are outputted from the output port alternately.

[Function] In this invention, the light outputted from the output port is obtained alternately from the first input port and the second input port based on the vertical synchronization signal from the video camera. By installing an image capturing device in front of the lens of the video camera, images obtained from the first input port and the second input port during recording are alternately recorded every one field scanning time. Become.

〔Example〕

FIG. 1 is an explanatory diagram of the configuration of a three-dimensional video photographing apparatus which is an embodiment of the present invention. In the same figure, 4a.

4b is an input port, 4a is for the left side, and 4b is for the right side. A reflector 1I5a is attached at a position facing the input port 4a at an angle of about 45°.

Against this! [A half mirror 6 is arranged parallel to and facing It5a, and an electronic shutter 7a is provided between the reflection t*5a and the half mirror 6.
An output port 8 is provided at an angle of approximately 45'' from one end of the holder.

On the other hand, a reflector 1lt5'b is attached with one end touching the input port 4b at an angle of about 45°.

A reflection 115c is further installed in a position parallel to and facing this reflection ff15b, and this reflection mirror 5C and a half mirror
6 are in contact at one end and face each other at an angle of approximately 90°. Further, an electronic shutter 7b is provided between the two.

Note that 9 is an electronic shutter control signal generator that generates a signal to control opening and closing of the electronic shutters 7a and 7b based on the vertical synchronization signal of the video signal, 10 is a stereoscope connection terminal, 11 is a video signal input terminal, Reference numeral 12 denotes a mounting portion, which has a structure that allows it to be mounted on the front surface of a video camera lens and an electronic viewfinder.

In such a configuration, as shown in the figure, the incident light obtained from the lens input port 4a is reflected by the reflecting mirror 5a, and when the electronic shutter 7a is in the "dark" state, the half mirror
6, and is further reflected by the half mirror 6 and output to the output port 8.
It is output from On the other hand, the incident light obtained from the input port 4b,
is reflected by the reflection v15b and further reflected by the reflection &i5c, and if the electronic shutter 7b is in the "open" state, it faces the half mirror 6, passes through the half mirror 6, and is output to the output port 8.
It is output from Furthermore, when both the electronic shutters 7a and 7b are in the "rll" state, the incident light obtained from the input port 4a is blocked between the reflection mirror Mi5a and the half mirror 6, and the incident light obtained from the input port 4b is blocked by the reflection mirror 5C. , half mirror 6
The output port 8 is cut off between the output ports 8 and 8, and neither output is output from the output port 8. Therefore, the electronic shutter 7a.

By constantly keeping one of the ports 7b in the "open" state and the other in the "idle" state, one input port 4a is connected to the output port 8.

Only the incident light of 4b can be selectively output.

FIG. 2 is an explanatory diagram of the configuration of the three-dimensional video imaging device shown in FIG. 1 attached to an existing video camera.

In the same figure, 1 is a subject, 13 is the stereoscopic image capturing device shown in FIG. 1, 14 is a video camera, 15 is a lens, 1
Reference numeral 6 designates an m-mechanical device, 17 a video tape, 18 an electronic viewfinder for viewing images being photographed, recorded or played back, and 19 a video signal output terminal, and this video signal output terminal 19 and the three-dimensional image photographing device 13 A video signal input terminal 11 is connected thereto.

In such a configuration, the electronic shutter control signal generator 9 in the stereoscopic image capturing device 13 is connected to the video signal input terminal 1.
Obtain a video signal from 1. The video signal includes a vertical synchronization signal for each field scanning time, and this vertical synchronization signal is different for odd and even fields. Therefore, by extracting the vertical synchronization signal from the video signal, the single shutter control signal generator 9 applies it to the odd and even fields every one field scanning time, and controls the left and right electronic shutters 7a.

It is possible to create a control signal that alternately opens and closes 7b,
According to this control signal, the electronic shutter 7a is activated.

7b is alternately opened and closed.

As described above, the stereoscopic image capturing device 13 alternately opens and closes the electronic shutters 7a and 7b every one field scanning time, so that the light obtained from the human power ports 4a and 4b is alternately transmitted from the output port 8 to the video camera 14. Through the lens 15 of
An image is formed on the image sensor 16, converted into an electrical signal by the image sensor 16, and recorded on a videotape 17. In other words,
In the video camera 717, the scene of the subject 1 seen with one of the left and right eyes (input ports 4a, 4b) is recorded alternately every one field scanning time. For example, during the odd field scanning time, the scene is obtained from the input port 4a, and during the even field scanning time, the scene is obtained from the input port 4b.

When playing back the videotape 17 recorded in this way, the output port 8 of the stereoscopic image capturing device 13 is attached to the electronic viewfinder 18 via the mounting part 12, and the left eye is the input port 4a and the right eye is the input port 4b. By alternately opening and closing the electronic shutters 7a and 7b according to the vertical synchronization signal, stereoscopic images can be viewed. Naturally, in this case as well, it is essential to connect the video signal output terminal 19 of the video camera 14 and the video signal input terminal 11 of the stereoscopic image photographing device 13, as in the case of photographing.

Furthermore, by using a commercially available stereoscopic scope (not shown), stereoscopic video viewing on a TV can be realized. In this case, the stereoscopic image capturing device 13 can be used as an adapter for a stereoscopic scope.

In other words, the video signal input terminal 1 of the 3D image shooting bag @13
By connecting 1 to the video signal output terminal of the TV, and connecting the stereoscope connection terminal 10 to the control terminal of the stereoscope, the R'f
The shutter control signal generator 9 generates a control signal and sends it to the stereoscopic scope, and the shutter control signal generator 9 generates a control signal and sends it to the stereoscope.
The left and right viewing windows of the stereoscope are opened and closed alternately each time.

In this way, the three-dimensional image capturing device 13 is used not only for its original purpose of capturing three-dimensional images, but also as a simple scope for viewing three-dimensional images.
It can also be used as a 3D adapter that can be used as a controller for commercially available 3D scopes.

Moreover, its structure is relatively simple and can be manufactured at low cost.

〔Effect of the invention〕

As described above, according to the present invention, the first input port is connected based on the vertical synchronization signal of the video signal.

Since the light alternately obtained from the second input port is used as the light output from the output port, 3D images captured from the left and right viewpoints can be captured every field scanning time without the need for extra editing work. be able to.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the configuration of a stereoscopic image capturing apparatus according to an embodiment of the present invention, and FIG. 2 is an explanatory diagram of the configuration of the stereoscopic image capturing apparatus of FIG. 1 attached to a video camera. FIG. 3 is a configuration explanatory diagram showing a conventional stereoscopic video imaging method. In the figure, 48 and 4b are input ports, 7a and 7b are electronic shutters, 8 is an output port, 9 is an electronic shutter control signal generator, and 11 is a video signal input terminal. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims] (1) A first and second input port corresponding to the left and right eyes of a human being, and an output port for outputting the input light input to the input port, alternately according to the vertical synchronization signal in the video output signal of the video camera. A three-dimensional image photographing apparatus characterized in that input light input to the first input port and the second input port is output from the output port.