JPS62291288A - Stereoscopic picture device - Google Patents

Abstract

PURPOSE: To eliminate flicker on a display image, and to reduce the fatigue of an observer, by image-forming a left side picture, and a right side picture on a single image pickup plane at every prescribed cycle alternately, and displaying the right side picture, and the left side picture on individual display means separately using a memory. CONSTITUTION:A pair of optical shutter devices 26 utilizing electro-optical effect are provided in an optical system part 21, and the left side, and the right side pictures having binocular parallax of an object 27 are made incident on an image pickup tube 30 alternately through the optical shutter devices 26, and a half mirror 29. A signal from the image pickup tube 30 is added on a recording and reproducing device 70 through a video amplifier 33, and a processing circuit 34, and also, it is converted to a digital signal at an A/D converter 35, then it is stored on memories 36 and 37. And write and read on the memory are controlled interlocking with the switching of the shutter 26, corresponding to a timing pulse, and an address signal from a control part 24, and the left side picture eo is displayed on a display device 44, and the right side picture, on a display device 45, independently.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention Industrial Field of Application The present invention utilizes left and right binocular parallax to provide a stereoscopic image (0Y to two devices) that can obtain basic images.

BACKGROUND OF THE INVENTION FIG. 5 is a block diagram showing the electrical:O configuration of a stereoscopic projection 11 apparatus 1 of the prior art. The standing sea lion imaging device 1 photographs a subject 2 using two imaging devices, a right imaging device 3 and a left imaging device m4. The right video device 3 and the left video device 4 are synchronized by a synchronization equal signal from a synchronization signal generator 5, and the field identification circuit 6 receives the synchronization signal, and
Determine whether it is an odd or even field and press switch 7! ! work By driving the switch 2, the left image and the right image are alternately displayed on the display section rrL8.

The field identification circuit 9 is a shutter drive circuit that identifies whether the image displayed on the display device 8 is an odd field image or an even field image, and drives the left and right -H electro-optical shutter devices 10. 11, a signal synchronized with the displayed image is sent. That is, when using the right video device, the right shutter 12 is turned on and the left shutter is turned on. When displaying the left image, the opposite control is performed, as shown in FIG.
By arranging the right shutter 12 between the display vclt 8 and the left @ 15 of the viewer A, the image can be viewed three-dimensionally by the fusion effect of the parallax of both subjects. .

In the above-mentioned prior art, the drawing period of the left and right shutters is performed using the vertical synchronization period, so the opening and closing speed is slow, and the viewer cannot see the display. The image appears to flicker and the displayed image? ! ! ! There were two points: I got tired from watching the movie.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a one-person video device that can eliminate flickering of displayed images and reduce viewer fatigue as much as possible.

Means for Solving the Problems The present invention forms an image by alternately focusing a left side image and a right side image having left and right binocular parallax on a single imaging surface at predetermined intervals. an imaging means configured to obtain a signal; and a signal processing means configured to convert the left and right images formed on the imaging surface into a 747c signal and output it as a video signal in which left and right image data are alternately arranged for each cycle. , a first storage means for storing left image data, a second storage means for storing right image data, the fjS1 storage means, and the second storage means are synchronized with the period to perform writing/reading. a control means for controlling the left image (the left image is displayed when the left image data is missing)
During the period when the video signal is the left video data, the video signal is is supplied to the first display means, and during a period when the video signal is right video data, the output of the first storage means is supplied to the first display means.
A first switching blade 12 adapted to supply display means.
and, during a period when the video signal is left video data, the output of the second storage means is supplied to the second display means, and during a period when the video signal is right video data, video No. 13 is supplied to the second display means. This is a three-dimensional image apparatus characterized in that it includes a second switching stage 'P' configured to supply a signal to a display means.

f￥：YearAccording to the present invention, the left image and the right image ↑ are alternately formed on a single imaging surface at predetermined intervals, and the obtained video signal is used as the left image. During the data period, the left video data is supplied to the first display means at the same time as the video signal is supplied to the first display means.
is stored in the storage means, and the output of the second storage device is fjr.
, 2 O (supplied to the display means.

When the video signal is the right video data, the video signal is supplied to the second display means and at the same time the right video data is supplied to the second display means.
The output of the first storage means is supplied to the second display means.

Embodiment FIG. 1 is a block diagram showing the electrical configuration of a stereoscopic image device 20 according to an embodiment of the present invention. ! Referring to 51s,
The stereoscopic video device 20 will be explained.

Stereoscopic video device 2, video signal processing section 23, control section 24, and display section 2
It consists of 5.

The optical system unit 21 is provided with a pair of left and right shutters 1ii26 each having a shank structure utilizing an electro-optic effect, and the left and right images having binocular parallax of the subject 27 are respectively The light passes through the shutter device 26 and is incident. The right image is captured by the right shutter 26a of the shutter device 2G, as shown by the two-dot chain line 21 in FIG.
, is reflected by the reflecting mirror 28, is reflected again by the half mirror 29, and is guided to the imaging device ji30. The left image is the two-dot chain line in Figure 1! As shown at 22, the light passes through the left shutter 26b and the half mirror 29 and is placed in the image pickup position 3.
It leads to 0.

The imaging surface 22 includes an imaging device 30 that converts video information into an electrical signal, and a deflection circuit 32 that outputs a signal for driving a deflection yoke 31 of the imaging device 30.

In the video signal processing section 23, the video signal obtained by the imaging device 30 is amplified by a video amplification circuit 33,
The signal is applied to the video processing circuit 34.

Outputs of the video processing circuit 34 include an analog/digital converter 35, a first memory 36 and a second memory 37 which are used as RAM (write/read memory), switches 38 and 39, and a differential/analog converter 35. The signal is processed by a digital signal system consisting of converters 40 and 41.

The control unit 24 includes a timing pulse generation circuit 42 that generates a control signal for controlling the timing of the shutter device 26, the first memory 3G, the second memory 37, and the switches 3G and 39, a first memory, and an address generation circuit 43 that specifies the address of the second memory.

The display unit 25 includes a first display device 4 t equipped with a display means realized by, for example, a CRT (cathode ray tube), and a second display device 45 equipped with a display means similar to the first display device 44 .
It consists of two display devices.

A stand-alone video system having the configuration as described above! ! The operation of 20 will be described in detail below.

The left and right images of the subject 27 having both V and parallax are imaged on the imaging surface 30a of the i-image device 30 by the optical system section 21, as described above. At this time, the left and right images are blocked by the shutter device 26 at predetermined intervals.

FIG. 2 is a timing chart showing the timing of 74'X control of the stereoscopic video apparatus 20. ! jS2 Figure (2) shows the right shutter control signal 46 that controls the opening and closing of the right shutter 26a, and Figure 2 (3) shows the left shutter control signal 46 that controls the opening and closing of the left shutter 26a. A control signal 47 is shown. Said right shutter control signal 4
6 and the left shutter control signal 47 are supplied from the timing pulse generation circuit 42.

As shown in FIG. PjS2 (2) and FIG. 2 (3), the right shutter 26a and the left shutter 26b repeat opening and closing operations alternately, and the operations are performed with opposite left and right characteristics. Therefore, the right shutter 2Ga; 5
During the period in which the left shutter 26b is open, the left shutter 26b is closed, and during the period in which the left shutter 2Gb is open, the right shutter 2f3b is closed. The repetitive operation is performed in a second
It is synchronized with the vertical Jilt signal 48, which is a scanning signal in the engineering direction of the imaging surface 30a shown in FIG. 6(6).

By controlling the Nyattas sound 2G as described above, on the imaging surface 30a, a left image and a right image are alternately formed in each vertical scanning period, as shown in FIG. 2 (1). Left image data (L n+L n+ shown in the second diagram)
1, L n+ 2, -) and right video data (1G
Illustrated Rn r Rn + 1 r Rn + 2 +
-) are alternately returned to the imaging device 30.
can be obtained as the output of

The video signal 49 is amplified in the video amplification circuit 33,
5 to the video processing circuit 34; available. In the video processing circuit 34, a synchronizing signal such as a vertical M signal is added to the four video signals, and when the video is shot in color,
Signal processing such as color signal processing is performed.

After that, the 4 video signals are analog/defal conversion 2;
35 and is converted into a digital signal. The video signal converted into a digital signal (hereinafter referred to as digital video signal, not shown) is sent to the first memory 36 and the second memory 3.
7 and switches 38+39.

In FIG. 1, the first memory 36 and the twenty-seventh memory 37 are line! 1. ! 2 tll3,! As shown in 4, in synchronization with the repetition period of the four left and right images of the video signal,
Write/read control is performed, and write/read 7
The dress designation is at line 5 in Figure 1. This is done by the output from the address generation circuit 43, as indicated by Z6. That is, during the period when the right side image is being imaged, right side image (2 data) is written in the first memory 36, and left side image data is read from the second memory 37. During the period, the right video data already stored in the PJS1 memory 3G is read out, and the 27th memory 37
The crystal double pendulum 43x connected to the address generation circuit 43, into which the left image is written, is used for the primary oscillation of the oscillation circuit built in the address generation circuit 3, which generates the basic pulse of the address designation signal. It is.

Switches 38, 39 similarly switch lines l'7. , J'S, the switching mode is controlled to change in synchronization with the period.

That is, in the switch 38, the terminal a and the terminal C are connected during the period when the right side image is being photographed, and the terminal A and the terminal C are connected during the period when the left side image is being photographed. When the switch 391-2 is turned on, terminals e and f are connected during the period when the right side image is being photographed, and terminals d and terminal f are connected during the period when the left side image is being photographed. be done.

Therefore, the signal 50 output from the S2 child C of the switch 38 is a signal of only the right image as shown in FIG. 2 (5), and the signals (Rn), (Rn+1) and・
- The signal indicated by is a signal output from the first memory 36, and is a signal indicated by Rn, Rn+1. The signals indicated by . . . are signals directly output without going through the first memory 36. As shown in FIG. 2 (4), the signal 51 output from the three terminals r of the switch also has two rotations of the signal f2 (131).
This is the signal that will be returned.

Since the aforementioned signals 50 and 51 are digital signals, they are supplied to differential/analog converters 40, 41, converted into analog signals, and supplied to display device 44 and display device 45, respectively.

Figure PJ3 is a sectional view of the display section 25. The right image data converted into analog values supplied from the digital/analog converter 40 is sent to the display device 44 as shown by line 9 in the figure f:tS3.

The analog (tll) converted left video data supplied from digital/analog conversion C=il is seen on the display device 45, as shown by line /10 in FIG.

As shown in FIG. 3, the display unit 5!244 is arranged so that the displayed image is reflected only in the viewer's right eye 52, and the display unit 45 is arranged so that the displayed image is reflected only in the viewer's left eye 53. The right image and the left image are shielded by the shielding member 60.

Therefore, the left and right images with binocular parallax will be reflected in the viewer's both nagis, and the left and right images will be shown in Fig. 2 (4).
) and as shown in FIG. 2 (5), there is no interruption (since it is a continuous image, there is no flickering).

FIG. 4 shows the arrangement of the display device 4.1 and the display unit ¥45;0 display device 44 and the display device 4.
5 means each display surface 44a as shown in FIG.
, 45a are arranged in a direction perpendicular to the display surface 4.
A polarizing filter 54 and a polarizing filter 55 having mutually orthogonal polarization characteristics are provided at positions adjacent to 4a and 45a. Further, a polarizing filter 5G having the same polarization characteristic as that of the polarizing filter 54 is provided at a position close to the right limit 52 of the viewer.
A polarizing filter 57 having the same polarizing characteristic as that of the polarizing filter 55 is provided at a position adjacent to the polarizing filter 55 .

By configuring as described above, the display ′jcr
The right projection f2 displayed on rL44 is the line /11. ,, As shown by '12, it is reflected by the half mirror 5C, and the left image is reflected by the half mirror 5C, as shown by the lines /13 and 114 in Figure 4.
58 and appears in the left eye of the viewer. In this way, the right eye sees only the right image, and the left eye sees only the left image, making it possible to obtain a three-dimensional image.

Alternatively, the video signal 19 may be recorded in the recording/playback device 70 and played back at any time to display the video on the display unit 25.

Effects As described above, according to the present invention, it is possible to obtain a continuous image that has left and right image parallax, eliminates the flickering of the left G display image (t), and improves the visibility of both sides of the viewer. Fatigue can be reduced as much as possible.

[Brief explanation of drawings]

Figure 1 shows the blocks showing the electrical t1-1 configuration of a 3D image system implemented by Honkomei, and Figure 2 shows the 3D image system 2.
20, FIG. 3 is a sectional view of the display section 25, and FIG. 14 is a diagram showing the display device 4t and the display section 4.
Another record with 5! FIG. 5 is a block diagram showing the electrical groove configuration of a conventional stereoscopic imager (two-strip rrL1).
...Imaging unit, 23...Video signal processing unit, 24...Control unit, 25...Display unit, 26...Shutter device, 2
6a...Right side shutter, 26b...Left side shutter,
28...Reflector, 29.58...Half mirror-13
o... Imaging device, 32... Deflection circuit, 33... Video amplification circuit, 34... Video processing circuit, 35... Analog/digital converter, 36... First memory, 37...
...Second memory, 38.39...Switch, 40.4
1...Digital/analog 7), 42...Timing pulse generation circuit, 43...Address generation circuit, 4
4... First display device, 4 S... Second display device, 5
4+5515 GH57...Polarizing filter agent Patent attorney Number of strokes Keiichibe 4.9 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] A video signal is obtained by alternately focusing a left side image and a right side image having left and right binocular parallax on a single imaging plane at predetermined intervals. an imaging means; a signal processing means for converting the left and right images formed on the imaging plane into electrical signals and outputting the left and right images as a video signal in which left and right image data are alternately arranged in each cycle; a first storage means for storing, a second storage means for storing right image data, and the first storage means;
control means for controlling writing/reading of the second storage means in synchronization with the cycle; first display means for receiving the left image data and displaying the left image; and the right image. a second display means for displaying a right image when the data is given, and a second display means for supplying a video signal to the first display means during a period in which the video signal is left image data; a first switching means configured to supply the output of the first storage means to the first display means during a period when the video signal is data; and a first switching means configured to supply the output of the second storage means during a period when the video signal is left video data; 2. A stereoscopic video apparatus, comprising: a second switching means for supplying the video signal to the second display means, and for supplying the video signal to the second display means during a period when the video signal is right video data. .