JPH0744700B2 - Stereoscopic television equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a stereoscopic television device for stereoscopically reproducing a remote scene or the like.

(Prior Art) As this type of stereoscopic television device, for example,
There is one as shown in FIG. That is, images of two fields in one frame from the two left and right TV cameras 101a and 101b are alternately switched by the image switching device 105 controlled by the controller 103, and A is displayed in the first field on one monitor TV 107, B is displayed alternately in two fields.

Then, with the glasses 109 that open and close alternately to the left and right in synchronization with image switching, the image A from the left TV camera 101a is viewed by the left eye, and the image B from the right TV camera 101b is viewed by the right eye. This enables stereoscopic viewing using the parallax of the cameras 101a and 101b and the afterimage effect.

However, with this method, the shooting cycle of 1 field is 1 /
The images A and B from the left and right cameras 101a and 101b for 60 seconds are not alternately projected at a cycle of 1/60 seconds, that is, when the left image A is displayed, the right image B is missing. However, when the image B on the right side is displayed, the image A on the left side is missing, so that only the normal image of 60 fields / second can be seen with one eye. Therefore, there is a drawback that the flicker is large and the viewer feels tired. On the other hand, in order to eliminate the flicker, as shown in the time chart of FIG. The signals A (R is right-eye information, L is left-eye information) are alternately recorded in two memories, one pair each on the left and right sides, and each of the recorded image signals is recorded in a cycle of 1/120 second, one of which is the first field. (0R, 1R, 2
R, ...) and the other to the second field (0L, 1L, 2L, ...
There is a method of eliminating the flicker by alternately reproducing twice in () (see JP-A-58-139589).

However, in this system, the images from the left and right cameras are half-discarded at the time of composition and displayed using either one of the first and second fields, respectively.
The same image is reproduced twice in both the first and second fields.

Therefore, for example, the left eye can see only one frame image in 1/30 second. Therefore, there is a problem that the image becomes rough and the smoothness is lost.

(Problems to be Solved by the Invention) As described above, the one in which the images from the two left and right TV cameras are alternately switched by the image switching device to be alternately displayed on one monitor TV is Since you can see only 30 fields / sec which is half of the usual 60 fields / sec, the flicker is large and the observer's feeling of fatigue is large. Alternately recorded, half the information of each recorded image signal is recorded in 1/120 second cycle, one in the first field,
When the other one is reproduced twice in the second field alternately, the number of fields is doubled, but the image becomes rough and smoothness is lost.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and provide a stereoscopic television device capable of obtaining a clear image without flicker and image roughness and without feeling tired.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a stereoscopic television device for displaying stereoscopic image information on a television monitor by switching images from two television cameras. Three video storage means for sequentially recording video information shifted from each other by half a cycle from two TV cameras, and record information from each video storage means on the TV monitor in half the recording time. A stereoscopic television device having a controller for sequentially reproducing.

(Operation) With the above configuration, in the present invention, the video information from the two television cameras, which is shifted by a half cycle, is sequentially recorded in the three video storage means. Then, the record information of each of the video storage means is sequentially reproduced on the television monitor in half the recording time under the control of the controller.

Therefore, according to the present invention, the video information from the two TV cameras, which is shifted by a half cycle, is sequentially recorded in the three video storage means, and the video information is reproduced by sequentially reproducing the video data at half the recording time. The images can be played back continuously at high speed without discarding them, and the roughness of the images disappears, resulting in clear and smooth 3D images. Further, according to the present invention, since recording and reproduction are performed in each video storage means without causing a vacancy in operating time, it is possible to effectively use each video storage means.

(Examples) In order to facilitate understanding of the configuration of the present invention, first, reference examples shown in FIGS. 1 and 2 will be described.

1a and 1b are left and right TV cameras whose parallax angle is adjustable.The TV cameras 1a and 1b are provided with video information from the left TV camera 1a via an A / D converter and switching devices 3a and 3b (not shown). Are alternately stored in the image memories 5a and 5b (video storage means), and video information from the right TV camera 1b is alternately recorded in the image memories 7a and 7b (video storage means).

The image information recorded in the image memories 5a, 5b, 7a, 7b are read alternately and displayed on the high-speed monitor television 11 via the D / A converter and the image reproducing device 9 not shown.

Reference numeral 13 denotes liquid crystal shutter type shutter glasses as shutter means which are opened and closed alternately in the left and right in synchronization with the image switching of the high speed monitor television 11.

Further, 15 is a controller, and this controller 15
Controls the synchronization of the cameras 1a and 1b, the switching of the image memories 5a, 5b, 7a and 7b, the image reproduction of the image reproduction device 9, the opening and closing of the shutter glasses 13, and the like.

FIG. 2 shows a time chart of recording and reproduction of the image memories 5a, 5b, 7a, 7b.
Image information 5a (1st field), 5b (2nd field) in which two sets of video information (1 field 1/60 second) A and B from a and 1b respectively are shown in a solid line frame. And image memories 7a (first field), 7b (second field)
Field).

Switching between the image memories 5a and 5b of each set and between the image memories 7a and 7b is performed by the switching device 3 by a control signal from the controller 15.

Each video information A1, stored in this image memory 5a, 5b, 7a, 7b
A1 ', A2, A2', A3, A3 ', ..., B1, B1', B2, B2 ', B3, B
All of 3 ', ... Are passed through the image reproducing device 9 receiving the control signal of the controller 15
(A1) shown by high-speed monitor TV 11 in 120 seconds →
(B1) → (A1 ′) → (B1 ′) → (A2) → (B2)
Play in the order of.

At this time, the switching cycle between the signal (A) from the left TV camera 1a and the signal (B) from the right TV camera 1b is 1 /
Since it is 120 seconds, it is possible to view images of 60 fields / second with one eye and 120 fields / second with both eyes by the shutter glasses 13. That is, it is possible to reproduce and view the captured video at high speed without discarding it at all.

Therefore, it is possible to secure the same number of fields as in a normal television, so that flicker is not bothered and the roughness of the image is eliminated, so that a clear and smooth three-dimensional image can be obtained.

3 and 4 are a time chart of the television camera and a time chart of the image memory according to the embodiment of the present invention.

In this embodiment, the TV cameras 1a, 1a
Two image memories 5a and 5b each for b and an image memory 7
In contrast to the one provided with a and 7b, three image memories are shared by two television cameras.

In this embodiment, video information (A1, A
1 ', A2, A2', A3, A3 ', ..., B1, B1', B2, B2 ', B3, B
3 ', ...) are shifted by a half cycle as shown in FIG. 3, and accordingly, in each image memory, information shifted by a half cycle is stored as shown by the solid line frame in FIG. Frame → →
→ → → ... are played in order of high-speed TV monitor.

As described above, according to the present invention, since the number of image memories is three, there is no vacancy in the operation time of the memories, and the effective use of the memories can be achieved.

The present invention can also be applied to a color television. Furthermore, we aim to further speed up high-speed monitor TVs,
For example, it is possible to play back in 1/3 of the recording time.

[Effects of the Invention] As is clear from the above description, according to the present invention, since the captured images are successively played back at high speed without being discarded at all, the images are clear and smooth with no roughness. It is needless to say that an image can be obtained, and since recording and reproduction are performed in each image storage means without a vacancy in operating time, each image storage means can be effectively used.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing a reference example for explaining the present invention, FIG. 2 is a time chart of storage and reproduction of an image memory, and FIGS. 3 and 4 are embodiments according to the present invention. ,
FIG. 3 is a time chart for photographing by a television camera, FIG. 4 is a time chart for storing and reproducing in an image memory, FIGS. 5 and 6 are conventional examples, respectively, and FIG. FIG. 6 is a time chart of storage and reproduction. 1a, 1b …… TV camera 5a, 5b, 7a, 7b …… Image memory (video storage means) 11 …… High-speed monitor TV 13 …… Shutter glasses 15 …… Controller

Claims (2)

[Claims] 1. A stereoscopic television device for displaying stereoscopic image information on a television monitor by switching images from two television cameras, wherein the two pieces of image information from the two television cameras are sequentially shifted by a half cycle. Three video recording means to be recorded, and the record information from each of the video storage means,
A stereoscopic television device, comprising: a controller for sequentially reproducing to the television monitor in 2 hours. 2. The controller according to claim 1, wherein the controller controls shutter means for opening and closing recorded information reproduced on the television monitor according to an image from each television camera. Stereoscopic television device.