JPH03225561A - Image display device - Google Patents

Abstract

PURPOSE:To shorten time required for image display by displaying precedently transferred image data at the time of receiving a display request, and at the time of receiving the succeeding display request, displaying image data stored in the other display image memory. CONSTITUTION:When an FWD key 11a on an input part 11 is depressed, a display control part 10 reads out image data corresponding to an optional address from an image recording part 6 and transfers and writes the read data to/in a display image memory 8a. Almost simultaneously with the data writing, the control part 10 transfers and writes image data corresponding to the address higher than the address concerned to/in the display image memory 8b. The image data written in the memory 8a are displayed on a display part 7 immediately after writing the data. When the key 11a is continuously depressed, a display switching part 9 is switched to the memory 8b side, the image data written in the memory 8b is displayed on the display part 7b and image data corresponding to the higher address are transferred and written to/in the memory 8a.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an image display device that is applied to an X-ray CT device or an MRI device and sequentially displays image data on a display unit.

(Conventional technology) A conventional image display device is shown in FIG.

The image display device shown in the figure includes an image recording section 5 that can record a plurality of continuous image data, and a single display image that temporarily stores and holds the image data read out from the image recording section 5. a memory 4; a display unit 3 that displays images based on the image data transferred to the display image memory 4; a control unit 1 that serves as the overall control center; It includes a keyboard 2 for inputting display request commands and the like for instructing the display section 3 to display image data.

In the above configuration, the image data read from the image recording section 5 is first transferred to the single display image memory 4, and this transferred image data is processed in response to a display request command input from the keyboard 2. They are displayed in sequence on the display section 3.

(Problem to be Solved by the Invention) By the way, when it is desired to display continuous image data on the display unit 3 in the image display device having the above configuration, the image data is transferred to the image recording unit from the time when the display request command is input. 5, the read image data is transferred to the display image memory 4, and then the image data is displayed on the display unit 3. Furthermore, when there is a request to display the next image, the same process is performed. It was supposed to be processed. moreover,
Since this processing speed is limited by hardware, there is a limit to the improvement of processing speed.

Therefore, the problem that it takes a considerable amount of time from the input of the display request command until the image data is actually displayed on the display unit 3 and that the operator is restrained for a long time remains unsolved.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an image display device that can shorten the time required to display an image.

[Configuration of the Invention (Means for Solving the Problems) The configuration of the present invention for achieving the above object is that, in the above-mentioned image display device, at least two or more devices each capable of temporarily storing and retaining the image data are provided. The continuous image data is transferred from the image recording section to each display image memory in response to image display requests for forward and reverse feed, and the image that is always transferred first and control means for switching and controlling the output of the display image memory so that the data is sent to the display unit as display image data.

(for production) The operation of the present invention having the above configuration will be explained.

When there is a request to display image data, the continuous image data recorded in the image recording section is transferred to each display image memory, and the image data that was transferred first is always displayed on the display section. be done. When the next display request is made, the image data stored in the other display image memory is displayed on the display section, and other continuous image data is recorded in the - display image memory. transferred from the department and stored. In this way, the time required for image display is shortened.

(Example) Hereinafter, the present invention will be explained with reference to the drawings.

FIG. 1 is a configuration explanatory diagram showing the configuration of an image display device as an example.

The image display device shown in the figure includes an image recording section 6 such as a hard disk that can record a plurality of image data, a display section 7 that displays an image based on each of the image data, and a display section 7 that temporarily stores the image data. Two display image memos 1J8a and 8b consisting of a storable RAM or the like, a display control unit 10 having functions to be described later, and each of the display image memories 8
an input section equipped with a display switching section 9 for switching the output to the display section 7 of a and 8b, and a FWD key 11a and a BWD key 11b for inputting display request commands for forward and reverse direction images; 11.

In this embodiment, the display control unit 10 stores the continuous image data from the image recording unit 6 into each of the display image memories 8a and 8b in response to image display requests for forward and reverse feed from the input unit 11. It has a function as a control means for switching and controlling the output of the display image memories 8a and 8b so that the image data transferred first is always sent to the display section 7 as display image data. There is.

The display switching unit 9 switches between the display image memory 8a or the display image memory 8b and the display unit 7 by the display control unit 10.
It has a function to selectively switch between

The operation of the image display device having the above configuration will be explained with reference to FIG. 2 as well. It is assumed that a plurality of continuous image data are recorded in the image storage section 6 in advance.

First, a case where the FWD key lla of the input unit 11 is pressed will be described. In this case, pressing the FWD key 11a is a request to forward the image in the forward direction.

FWD key 11 of input section 11. When a is pressed, the display control section 10 reads image data corresponding to an arbitrary - address from the image recording section 6, transfers this read image data to the display image memory 8a, and writes it (see FIG. (shown in 12th grade). At approximately the same time, image data (continuous image data) corresponding to a higher address than this - address is transferred to the display image memory 8b and written (indicated by 13 in the figure). In this case, the image data written to the display image memory 8a is transferred to the display section 7 as soon as the writing is completed.
will be displayed. The image data previously transferred in this way is sent to the display unit 7 as display image data.

Next, when the FWD key lla is pressed down, the display switching section 9 is switched to the display image memory 8b side and displays the image data written in the display image memory 8b on the display section 7, and Image data (continuous image data) corresponding to a higher address is transferred and written into the display image memory 8a (indicated by 14 in the figure). And if the FWD key is further pressed,
In the same way as described above, the image data stored in the display image memory 8a is displayed on the display section 7, and the image data corresponding to a higher address (continuous image data) is displayed on the display image memory 8b. is transferred and written (indicated by 15 in the figure).

Next, a case where the BWD key llb of the input unit 11 is pressed will be described. In this case, pressing the BWD key llb is a request to display the image in the reverse direction.

When the BWD key llb of the input unit 11 is pressed, the display control unit 10 reads image data corresponding to an arbitrary - address from the image recording unit 6, and uses this read image data for display in the same manner as described above. The image is transferred to the image memory 8a and written. At approximately the same time, image data (continuous image data) corresponding to a lower address than this - address is transferred and written to the display image memory 8b. In this case, the image data written to the display image memory 8a is displayed on the display section 7 upon completion of writing. In this way, the image data that has been transferred first is always sent to the display unit 7 as display image data.

When the BWD key Ilb is pressed next, the display switching section 9 is switched to the display image memory 8b side and causes the display section 7 to display the image data written in the display image memory 8b. Image data (continuous image data) corresponding to a lower address is transferred and written into the display image memory 8a. If the BWD key 11b is further pressed, the image data stored in the display image memory 8a is displayed on the display section 7 in the same manner as described above, and the lower address is displayed on the display image memory 8b. The image data corresponding to (continuous image data) will be transferred and written.

- Incidentally, when the FWD key 11a and the BWD key 11b are pressed one after another, the image data is transferred as follows.

If the FWD key 14a of the input unit 11 is pressed first, the display control unit 10 transfers and writes image data corresponding to an arbitrary - address to the display image memory 8a, and almost simultaneously writes the image data corresponding to the - address. The image data (continuous image data) corresponding to the higher address is transferred to and written into the display image memory 8b. In this case, the image data written to the display image memory 8a is displayed on the display section 7 upon completion of writing.

If the BWD key 11b is pressed continuously here, the image data written to the display image memory 8b is displayed on the display section 7, and the image data corresponding to the lower address with respect to the - address (continuous image data) is transferred to and written into the display image memory 8a.

If the BWD key llb is pressed further, the image data stored in the display image memory 8a is displayed on the display section 7 in the same way as described above, and the image data stored in the display image memory 8b is stored at an even lower address. The corresponding image data is transferred and written.

With the image display device described in detail above, at the time of inputting the display request command, the continuous image data to be displayed next is stored in two display image memos in advance! Since the image data is stored in either J8a or J8b, images can be displayed in a short time without being restricted by the processing speed of the hardware, and images can be switched quickly. Therefore, the time required for the operator to operate can be shortened, and the burden on the operator can be reduced.

By the way, the present invention is not limited to the one embodiment described above, and various modifications can be made within the scope of the gist thereof.

For example, in the embodiment described above, an example is shown in which two display image memories are used, but three or more display image memories may be provided. In this case, it is possible to obtain the same effects as in the embodiment described above, and further improvement in image display speed can be expected.

[Effects of the Invention] According to the present invention described in detail above, it is possible to provide an image display device that can shorten the time required to display an image.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing the configuration of an image display device as an embodiment, FIG. 2 is an explanatory diagram showing the operation of the image display device shown in FIG. 1, and FIG. 3 is the configuration of a conventional image display device. FIG. 6... Image recording section, 7... Display section, 8a, 8b...
-Display image memory, 10...control means.

Claims (1)

[Claims] An image display device comprising an image recording section capable of recording a plurality of continuous image data and sequentially displaying each of the image data on the display section in response to a display request, at least two or more capable of temporarily storing each of the image data. The continuous image data is transferred from the image recording section to each display image memory in response to forward and reverse image display requests, and the continuous image data is always transferred first. An image display device comprising: control means for switching and controlling output of a display image memory so as to send image data to a display section as display image data.