JPS6286997A - Stereo still picture reproducing device - Google Patents

Abstract

PURPOSE:To reproduce a stereo still picture with a memory by composing of a photographing means, an A/D converter, at least two picture memories, a writing circuit, a reading circuit, a D/A converter and a displaying device. CONSTITUTION:By a video camera 2 set at the photographing position for the left eye, an object 1 is photographed. The analog image signal corresponding to the object 1 from the video camera 2 is converted to the digital image signal by an A/D converter 3, and the frame of the digital image signal is written in the first picture memory 4 for the left eye by a writing circuit 6. Next, the video camera 2 is set to the photographing position for the right eye and the object is photographed. The analog image signal corresponding to the photographing position for the right eye from the video camera 2 is converted to the digital image signal by the A/D converter 3, and one frame is written to the second picture memory 7 for the right eye by the writing circuit 6. Next, the frame is alternately read from the first and second picture memories 4 and 5 by a reading circuit 7.

Description

[Detailed description of the invention] Technical fields> The present invention relates to an apparatus for reproducing stereoscopic still images.

<Prior Art> As a conventional stereoscopic video reproduction device, a video tape recorder is mainly used, and there is no device that reproduces stereoscopic video using a memory.

<Objective of the Invention> An object of the present invention is to provide a novel stereoscopic still image reproduction device that can reproduce stereoscopic still images using a memory.

<Structure of the Invention> In order to achieve the above-mentioned object, the stereoscopic still image reproduction device of the present invention has an imaging surface that receives subject light set at a left-eye shooting position and a right-eye shooting position with respect to the subject. , when photographing a subject, a photographing means that outputs analog video signals corresponding to each of the photographing positions; and an A/D converter that converts each of the analog video signals provided from the photographing means into a digital video signal. , at least two for individually storing each of the digital video signals.
a writing circuit that controls writing of each digital video signal to each of the image memories;
a succession circuit that alternately reads each of the digital video signals from each of the image memories; a D/A converter that converts each of the digital video signals successively read from each of the image memories into an analog video signal; The camera is comprised of a display that alternately reproduces and displays still images corresponding to the left-eye shooting position and the right-eye shooting position in response to each analog video signal from the /A converter.

<Example> Hereinafter, an example of the present invention will be described in detail with reference to the drawings. The figure is a schematic block diagram of one embodiment of the present invention.

In the figure, l denotes a subject, and 2 denotes a photographing means for photographing the subject l from a left-eye photographing position indicated by a solid line and a right-eye photographing position indicated by a phantom line, respectively, and outputting corresponding analog video signals. It's a video camera. At each photographing position, the imaging surface 14 that receives the subject light 15 is located at a position corresponding to the left eye and the right eye of the subject l, respectively. 3 is an A/D converter that converts each analog video signal provided from the video camera 2 into a digital video signal. Reference numeral 4.5 denotes a 1.degree. second image memory that individually stores each digital video signal corresponding to the left-eye and right-eye imaging positions. The first example of this example. The second image memories 4.5 each have a storage capacity of digital video signals for l frames.

6 is a write circuit that controls writing of each digital video signal from the A/D converter 3 to each image memory 4, 5, and this write circuit 6 is a timing signal generator that generates a timing signal for writing. It consists of a circuit 8 and a write control circuit 9 that controls writing of a digital video signal in response to a timing signal from the timing signal generation circuit 8.

7 is the first. This readout circuit 7 is a readout circuit that alternately reads each digital video signal corresponding to the left-eye and right-eye imaging positions written in the second image memory 4.5. from the second image memory 4.5 at a predetermined period (
In this embodiment, a selection signal generation circuit IO generates a selection signal for alternately reading data every 1.760 seconds), and a succession control circuit 11 performs readout control of a digital video signal in response to this selection signal. Consists of.

12 is the first. A D/A converter converts each digital video signal successively output from the second image memories 4 and 5 into an analog video signal, and 13 is a D/A converter 12.
The CRT serves as a display device that alternately reproduces and displays still images corresponding to the left-eye shooting position and the right-eye shooting position in response to analog video signals from the CRT.

Next, the operation of the stereoscopic still image reproducing apparatus having the above configuration will be explained. First, a subject 1 is photographed with the video camera 2 set at the left eye photographing position.

The analog video signal corresponding to the subject 1 from the video camera 2 is converted into a digital video signal by the A/D converter 3. One frame of the digital video signal corresponding to this left eye imaging position is written into the first image memory 4 for the left eye by the writing circuit 6.

Next, the video camera 2 is set at the right eye shooting position as shown by the imaginary line, and the subject 1 is shot. The analog video signal corresponding to the right eye shooting position from the video camera 2 is converted into a digital video signal by the A/D converter 3. One frame of this digital video signal is written by the write circuit 6 into the second image memory 7 for the right eye.

In this way, the first. In the second image memory 4.5, each digital video signal corresponding to the left-eye shooting position and the right-eye shooting position is individually written one frame at a time.

Next, the readout circuit 7 reads the first . Second image memory4.
5 and alternately, for example, for each field. Each of the successively outputted digital video signals is converted into an analog video signal by a D/A converter 12, and is then provided to a CRT 13, which displays on the screen of the CRT 13 corresponding to a left-eye imaging position and a right-eye imaging position, respectively. Each still image is displayed alternately every 1 field (1/60 seconds). Therefore, you can enjoy stereoscopic still images by using stereoscopic glasses, etc. that are synchronized with the timing of the left and right displays, and viewing still images taken at the left-eye shooting position with your left eye and still images taken at the right-eye shooting position with your right eye. becomes possible.

Note that if you want to display another still image, take a new still image with the video camera 2 and display the first still image in the same manner as described above. A corresponding digital video signal is written into the second image memory 4.5, and this digital video is read out alternately and displayed on the CRT 13.

In the above-described embodiment, one video camera 2 was used as a photographing means, but in another embodiment of the present invention, two video cameras are used to simultaneously photograph the subject at the left eye photographing position and the right eye photographing position. It may also be configured such that the video signals from each video camera are written into the image memories 4 and 5, respectively.

<Effects of the Invention> As described above, according to the present invention, a subject is photographed from the left-eye and right-eye photographing positions, and the video signals are written to respective image memories individually corresponding to the left-eye and right-eye. Since each digital video signal is read out alternately from each image memory and still images corresponding to the left eye and right eye shooting positions are alternately reproduced and displayed, for example,
If you look alternately with your left and right eyes using stereoscopic glasses,
It becomes possible to appreciate 3D still images.

[Brief explanation of drawings]

The drawing is a schematic block diagram of one embodiment of the invention. ■...Subject, 2...Video camera (photography means), 3...
A/D converter, 4.5... 1st. second image memory, 6
...Write circuit, 7...Read circuit, 12...D
/A converter, 13...CRT (display device).

Claims (1)

[Claims] (1) The imaging surface that receives the subject light is set at a left-eye shooting position and a right-eye shooting position with respect to the subject, and when shooting the subject, outputs analog video signals corresponding to each of the shooting positions. a photographing means; an A/D converter that converts each of the analog video signals provided from the photographing means into a digital video signal; at least two image memories that individually store each of the digital video signals; a write circuit that controls writing of each digital video signal to the image memory, a read circuit that alternately reads each of the digital video signals from each of the image memories, and each of the digital video signals read from each of the image memories. A D/A converter that converts the image into an analog video signal, and in response to each analog video signal from this D/A converter, each still image corresponding to the left eye shooting position and the right eye shooting position is alternately reproduced. A stereoscopic still image reproducing device, comprising: a display device for displaying a stereoscopic still image.