JPH0461494A - Stereoscopic picture broadcast system - Google Patents

Abstract

PURPOSE:To simplify the constitution by using a transmission means and a reception means of an existing broadcast system to broadcast and receive a stereoscopic picture. CONSTITUTION:A picture data and a differential picture data generated by a picture processing section 12 are sent while being superimposed for a video signal period and a blanking period of a television signal. After the television signal is received, the picture data and the differential picture data are synthesized at a stereoscopic picture generating section 19 to generate a stereoscopic picture and it is displayed on a display section 21. Thus, it is possible to broadcast and receive the stereoscopic picture by using a transmission means and a reception means of a conventional broadcast system. Thus, the constitution is simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention (Industrial Field of Application) The present invention relates to a stereoscopic image broadcasting system used for broadcasting stereoscopic images, for example.

(Prior Art) In a three-dimensional image broadcasting system that has recently been put into practical use, a pair of television (TV) cameras are arranged in combination with a predetermined interval, and images captured by the pair of TV right cameras are used. The images are transmitted via a two-channel transmission path to the entrance of the monitor, where they are combined and displayed as an image. At this time, the viewer can view the displayed image stereoscopically by viewing the Mosayu using glasses or the like equipped with a shutter mechanism. This image is 3
If it is 0 frames/second, flicker will occur, so 60
A double-speed flickerless system with one frame per second is used.

However, the stereoscopic image broadcasting system described above requires a two-channel transmission path for transmitting image data captured by the pair of TV left cameras, and therefore, the conventional broadcasting system is directly used for transmission and reception. Since it is difficult to do so, there is a problem in that a broadcasting system consisting of a pair of two dedicated stations must be constructed. Therefore, compared to conventional broadcasting systems, the configuration has become more complex and extremely expensive.

(Problem to be solved by the invention) As mentioned above, in the conventional stereoscopic image broadcasting system,
It is difficult to use a conventional broadcasting system, and a dedicated system with two transmitting and receiving stations must be constructed, resulting in a complicated configuration.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a stereoscopic image broadcasting system that can utilize a conventional broadcasting system and has a simplified configuration.

[Configuration of the Invention (Means for Solving the Problems) The present invention provides first and second television cameras that are arranged in combination with a predetermined interval;
The first image data of the first and second image data captured by the television camera was image-processed to generate a reference image, and the first and second image data were combined and a difference was taken. The first step is to generate and compress/reduce the difference image.
an image processing unit, a transmitting means for transmitting the reference image on a video signal transmitting portion of a television signal and transmitting the difference signal on a blanking portion of the television signal, and a television transmitted by the transmitting means. a receiving means for receiving a television signal; a second image processing means for expanding/enlarging a difference image placed on the blanking portion of the television signal received by the receiving means; and a second image processing section. 3D image generation means for generating a 3D image by combining the difference image expanded/enlarged by the reference image received by the reception means, and a display means for displaying the 3D image generated by the 3D image generation means. This is a three-dimensional image broadcasting system.

(Function) According to the above configuration, the reference image and the difference image generated by the first image processing section are transmitted by the transmitting means on the video signal portion and the blanking portion of the television signal. After the transmitted television signal is received by the receiving means, the stereoscopic image generating means generates a stereoscopic image by combining the reference image and the difference image, and displays it on the display means, so that the stereoscopic image can be viewed stereoscopically. . This makes it possible to transmit and receive stereoscopic images using the transmitting means and receiving means in a conventional broadcasting system.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a stereoscopic image broadcasting system according to an embodiment of the present invention, which is composed of a transmitting side and a receiving side. On the transmitting side, first and second TV left cameras are installed at a predetermined interval. It is arranged with A transmitting side image processing unit 12 is connected to the output ends of these first and second TV left cameras 011.

As shown in FIG. 2, this image processing section 12 has input ends of interfaces 12c and 12d connected to first and second TV left camera output ends 12a and 12b. These interfaces 12c and 12d are the first and second TV left camera power terminals 12a.

Image data from 12b is output to processor board 12f via high-speed data bus 12e. For example, as shown in FIG. 3, the processor board 12f includes a digital signal processor (DSP) 20a for difference detection, image memories 20b to 20d, a digital signal processor (DSP) 20e for data compression/reduction, and an image memory 20f.
~20h, and after combining the input image data and taking the difference to generate a difference image, the difference image data is compressed/reduced. The processor board 12f then outputs the generated differential image data to an output board 12g comprised of a memory and a digital/analog (D/A) converter via a high-speed data bus 12e. The output board 12g outputs the input difference image data to the mixer 12h. At the same time, image data captured by the first TV left camera 0, which serves as preset reference image data, is input to the mixer 12h via the delay circuit 12i.

The mixer 12h puts the input difference image data on the blanking part of the television signal, puts the image data on the image signal transmission part, and outputs it to the signal output terminal 12j.

Note that these interfaces 12c, 12
A personal computer 12k is connected to each control signal input terminal of the ds processor board 12f and the output board 12g via a control bus 121, and its operation is controlled in response to control signals sent to the personal computer 12.

A transmitter 13 is connected to the signal output end of the image processing section 12, and a transmitting antenna 14 is connected to the transmitter 13. The transmitting antenna 14 transmits the television signal transmitted from the transmitter 13.

Further, a recording unit 15 such as a video recorder is connected to the image processing unit 12. The recording unit 15 records the input television signal.

On the other hand, a receiving antenna 16 corresponding to the transmitting antenna 14
A receiving circuit 17 is connected to the receiving circuit 17, and a receiving side image processing section 18 is connected to the receiving circuit 17.

The image processing section 18 receives the differential image data via the receiving circuit 17, expands/adds the differential image data, and outputs it to the stereoscopic image generating section 19. Image data from the receiving circuit 17 is input to the stereoscopic image generating section 19 via the delay circuit 20 . The 3D image generation unit 19 divides the input image data and the difference image data into two fields, synthesizes them at the same speed or at double speed to form one frame, generates 3D image data, and displays the data on the display unit. Output to 21. For example, the display unit 21 is provided with a deflection shutter mechanism, and the image data from the first TV left camera 0 and the image data from the second TV camera 11 are transmitted to the right and left eyes of a viewer wearing deflection glasses. The display is synchronized and switched in such a way that it can be viewed in 3D.

In this way, the stereoscopic image broadcasting system has the image processing section 1
The image data and differential image data generated in step 2 are transmitted on the video signal portion and blanking portion of the television signal, and after receiving this television signal, the image data and differential image data are used to generate a stereoscopic image. The unit 19 synthesizes the three-dimensional images to generate a three-dimensional image, and displays the generated stereoscopic image on the display unit 21. This makes it possible to transmit and receive stereoscopic images using the transmitting means and receiving means in a conventional broadcasting system, thereby simplifying the configuration as much as possible.

In the above embodiment, the display unit 21 is provided with a deflection shutter mechanism, but the present invention is not limited to this, and it is also possible to configure the display unit so that the viewer uses glasses equipped with a shutter mechanism, for example. be.

Therefore, it goes without saying that the present invention is not limited to the above embodiments, and that various modifications can be made without departing from the spirit of the invention.

[Effects of the Invention] As described in detail above, according to the present invention, it is possible to provide a stereoscopic image broadcasting system that can utilize a conventional broadcasting system and has a simplified configuration.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a stereoscopic image broadcasting system according to an embodiment of the present invention, and FIGS. 2 and 3 are block diagrams showing details of the main parts of FIG. 1. 10.11...first and second TV cameras, 12...
- Image processing section, 13... Transmitter, 14... Transmitting antenna, 15... Recording section, 16... Receiving antenna, 1
7... Receiving circuit, 18... Image processing section, 19...
Stereoscopic image generation unit, 20...Delay circuit, 21...Display unit, 12a, 12b...First and second camera input terminals, 12c, 12d...Interface, 12e.
・・High-speed data bus, 12f ・・Processor board,
12g...Output board, 12h...Mixer, 12i
...Delay circuit, 12j...Signal output terminal, 12k.
...Personal computer, 121...Control bus, e...Digital signal processor (DSP) b ~ 2 Od. 0h...Image memory.

Claims (1)

[Claims] First and second television cameras arranged in combination with a predetermined interval, and a first television camera imaged by the first and second television cameras.
and image processing the first image data of the second image data to generate a reference image, and generate and compress/reduce a difference image by combining the first and second image data and taking the difference. a first image processing unit that transmits the reference image on a video signal transmission portion of a television signal and transmits the difference signal on a blanking portion of the television signal; a second image processing means for expanding/enlarging a difference image placed on the blanking portion of the television signal received by the receiving means; a three-dimensional image generating means for generating a three-dimensional image by combining the difference image expanded/enlarged by the image processing unit and a reference image received by the receiving means; and a display means for displaying the three-dimensional image generated by the three-dimensional image generating means. A stereoscopic image broadcasting system characterized by comprising: