JPH02261274A - Picture recording device - Google Patents

Abstract

PURPOSE:To confirm plural pickup pictures simultaneously on one pattern and to confirm the relation between forward /backward /left /right by synthesizing plural pictures picked up from plural angles in forward/backward/left/right directions onto one pattern and displaying the synthesized picture on a monitor. CONSTITUTION:Output video signals of 1st camera 1-4th camera 9 are recorded in 1st recording section 2-4th recording section 10 as one frame. Then video signals read from the 4 recording sections are retarded by a prescribed time at delay sections 5-11 and outputted to a changeover section 12. The changeover section 12 sends a synchronizing signal to 4 sets of cameras, their scanning is synchronized to synthesize the outputted video signals. Then a video signal synthesis section 13 inputs sequentially the video signal from the changeover section 12 to synthesize the signals onto one pattern and recorded on a VTR 14 and displayed on a monitor 15. Thus, the image picked from plural angles is displayed on a monitor to confirm the relation of forward/backward/left/right directions.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an image recording device, and relates to an image recording device that synthesizes video signals of a plurality of images captured by a camera so that the video signals can be displayed on one screen.

[Prior Art] In a conventional image recording device, for example, if you want to check images of yourself captured from various angles with a camera on a monitor, the captured images are sequentially displayed on the monitor.
Alternatively, the data was recorded/played on a VTR and displayed sequentially on a monitor. Therefore, for example, it is not possible to simultaneously compare and contrast images captured by a camera from multiple angles such as front, rear, left, right, etc., and there is a desire for something that can display these images simultaneously on a monitor, and improvements are desired. Ta.

[Problems to be Solved by the Invention] In view of the above-mentioned problems, the present invention provides a method that divides an image captured by a camera from multiple angles such as front, rear, left, and right into multiple parts, which could not be achieved with conventional image recording devices. An object of the present invention is to provide an image recording device that can simultaneously display images on a screen.

[i! Means for Solving II] A camera that outputs a video signal, a plurality of recording units that record video signals from the camera, and a camera that is connected to the recording unit and records one video signal and other video signals for a predetermined period of time. A plurality of delay units that delay the video signal, a video signal switching unit that compresses one video signal and other video signals each delayed by a predetermined time by the delay unit, and switches and outputs the video signal; and a video signal switching unit that converts the video signal from the video signal switching unit into one screen The present invention provides an image recording device configured with a video signal synthesis section that synthesizes a video signal and a video signal synthesis section.

[Operations] As configured as above, the image recording device of the present invention can combine a plurality of images taken by a camera from a plurality of angles such as front, rear, left, right, etc. onto one screen and display it on a monitor etc. This allows you to view multiple captured images on the screen at the same time.

[Embodiment 7] Hereinafter, embodiments of the image recording apparatus according to the present invention will be described in detail based on the drawings.

FIG. 1 is a block diagram of a main part of an embodiment of an image recording apparatus according to the present invention. In FIG. 6, l is a first camera which outputs a first video signal by taking an image.

2 is a first recording unit that records one frame of the first video signal output from the first camera 1; 3 is a second camera which outputs a second video signal by taking an image.

A second recording section 4 records one frame of the second video signal output from the second camera 3. 5 is a horizontal delay unit which converts the second video signal read from the second recording unit 4 into approximately 1/2H.
(IN (is the time required for horizontal scanning of one scanning line). 6 is the third camera, which outputs the third video signal by imaging. 7 is the third recording section. , records one frame of the third video signal output from the third camera 6. 8 is a vertical delay section, which delays the third video signal read from the third recording section 7 for approximately 1/2 time. Output with a delay (
IV is the time required for vertical scanning of the field).

A fourth camera 9 outputs a fourth video signal by capturing an image. A fourth recording section 10 records one frame of the fourth video signal output from the fourth camera 9.

Reference numeral 11 denotes a horizontal/vertical delay section which delays the fourth video signal read from the fourth recording section 10 by approximately 1/2H and approximately 1/2■ and outputs the delayed signal. Reference numeral 12 denotes a video signal switching unit which receives video signals from the first recording unit 2, horizontal delay unit 5, vertical delay unit 8, and horizontal/vertical delay unit 11, compresses each video signal, and outputs the video signals in a predetermined order. Switch and output the signal.

For example, when displaying four video signals on one screen, signal processing is performed to compress the horizontal scanning time to approximately 1/2, thin out every other scanning line, and then switch and output the signals. Further, the video signal switching unit 12 sends a synchronization signal to the first camera 1 to the fourth camera 9, synchronizes the scanning of these four cameras, and synthesizes the video signals output from the four cameras. Make it. Reference numeral 13 denotes a video signal synthesis section, which sequentially inputs the four video signals switched and outputted by the video signal switching section 12 and synthesizes them into one screen. 14 is a memory circuit for one screen or V
A video signal synthesizer 13 records and reproduces the video signal synthesized by the video signal synthesizer 13.

A monitor 15 displays the video signal output from the video signal synthesis section 13 or the video signal reproduced by a single screen storage circuit or VTR 14 or the like.

FIG. 2 is a block diagram of main parts of another embodiment of the image recording apparatus according to the present invention. In the figure, a camera 21 outputs a video signal by capturing an image. A first video signal switching unit 22 switches the video signal captured by the camera 2I and outputs it as a first video signal to a fourth video signal. 23 is a second video signal switching section, which includes a first recording section 2 and a horizontal delay section 5;
, the video signals from the vertical delay section 8 and the horizontal/vertical delay section 11 are input, each video signal is compressed, and the signals are switched and output in a predetermined order. For example, when displaying four video signals on one screen, the horizontal scanning time is compressed to approximately 1/2,
Signal processing is performed to thin out every other scanning line, and the signal is switched and output. The parts with the respective numbers other than those mentioned above correspond to the parts with the respective numbers in FIG. 1, so their explanation will be omitted.

Next, the operation of the image recording apparatus of the present invention will be explained based on FIGS. 3, 4, and 5.

FIG. 3 is a diagram showing an example in which a person 3I is imaged by four cameras: the first camera 1 placed in front of the person 31, the second camera 3 placed on the left, and the second camera 3 placed behind the person 31. The third camera 6 and the fourth camera 9 disposed on the right take images of the person 31 and output video signals, respectively. The first video signal captured and output by the first camera 1 is input to the first recording unit 2 to record the video signal for one frame, and the second video signal from the second camera 3 is input to the first recording unit 2 to record the video signal for one frame. The third video signal from the third camera 6 is input to the third recording section 7 and recorded as a video signal for one frame. , the fourth image from the fourth camera 9
The video signal is input to the fourth recording section 10, and the video signal for one frame is recorded.

Next, the video signal switching unit 12 receives the first video signal read out from the first recording unit 2 and the second video signal read out from the second recording unit 4 and delayed by approximately 1/2H by the horizontal delay unit 5. a video signal, a third video signal read out from the third recording section 7 and delayed by approximately 1/2 inch by the vertical delay section 8;
A fourth video signal read out from the fourth recording section 10 and delayed by approximately 1/2H and approximately 1/2■ by the horizontal and vertical delay section 11 is input. The video signal switching unit 12 performs signal processing on each of the input first video signal to fourth video signal to compress the horizontal scanning time to approximately 1/2 and thin out every other scanning line. , sequentially switch and output.

The switched first to fourth video signals are input to the video signal synthesis section 13. In the video signal synthesis section 13,
Four images based on the input first to fourth video signals are combined into one screen.

The video signals synthesized on one screen by the video signal synthesis section 13 can be displayed directly on the monitor 15, or can be displayed on the monitor 15 by being recorded in a storage circuit for one screen, or recorded and played back by a VTR 14, etc. do.

FIG. 4 is a diagram showing an example in which one camera 21 images a person 31 who has turned in the directions of ■, ■, ■, and ■. The video signal output from the camera 21 is input to the first video signal switching unit 22, and the first video signal switching unit 22 switches the camera 21 by operating a switch or the like each time the person 31 faces in each direction. The video signal to be output from the first video signal to the fourth video signal is switched and output.

That is, when the person 31 faces in the direction of ■, the first video signal is transmitted, when the person 31 faces in the direction of ■, the second video signal is transmitted, and when the person 31 faces in the direction of ■, the third video signal is transmitted. When facing in the direction (2), the fourth video signal is output. These first to fourth video signals that are switched and output are as follows:
As above, input to the first recording section 2 to fourth recording section 10,
Each of these recording units records one frame of each input video signal. Next, in the second video signal switching section 23, the first video signal read from the first recording section 2 and the second video signal are switched.
A second video signal read out from the recording section 4 and delayed by approximately 1/2H by the horizontal delay section 5, and a third video signal read out from the third recording section 7 and delayed by approximately 1/2H by the vertical delay section 8.
and a fourth video signal read out from the fourth recording section 10 and delayed by approximately 1/2 H and approximately 1/2 ■ by the horizontal/vertical delay section 11. The second video signal switching unit 23 performs signal processing to compress each of the input first to fourth video signals to approximately 1/2 the horizontal scanning time and thin out every other scanning line. , and then sequentially switch and output. The switched first to fourth video signals are input to the video signal synthesis section 13, synthesized onto one screen, and displayed directly on the monitor 15, or V T
It is recorded and played back using R14 or the like and displayed on the monitor 15.

FIG. 5 is a diagram showing an example in which four images based on the first to fourth video signals are combined onto one screen. The image 51 based on the first video signal starts scanning from the point "^", scans approximately 1/2H horizontally, and reaches the point "B", which is one of the scanning lines.
After finishing the main horizontal scanning, scanning of the image 52 by the second video signal begins with a delay of approximately 1/2H from the 82nd point. The total horizontal scanning time is IH for the video signal of In the horizontal scanning of the second grain of the video signal, one scanning line is thinned out, and the third main scanning line is scanned (thus, the first field of the image 51 is scanned by the first video signal). ends at point "E", and the scanning of the first field of image 52 by the second video signal ends at point "F", approximately 1/2 V after point "B".

Next, image 5 based on the third video signal delayed by approximately 1/2■
3, the horizontal scanning of one scanning line starts from point “D”,
After scanning approximately 1/2H, the horizontal scanning for one line ends at 81 points, and from point "E", one line of image 54 is scanned by the fourth video signal delayed by approximately 1/2H and approximately 1/2V. Horizontal scanning of the scanning line starts, and after approximately 1/2H scanning, from point "D" to I
The horizontal scanning of one opening ends at point "F" after H. In the horizontal scanning of the second grain of the third video signal and the fourth video signal, one scanning line is thinned out, and the third today's scanning line is horizontally scanned. In this way, the scanning of the first field of image 53 by the third video signal ends at point "G", and the scanning of the first field of image 54 by the fourth video signal ends lv after point "A". Ends with a “■” point.

Thereafter, the scanning of each second field by the first to fourth video signals is the same as the scanning of the second video signal.
Starting from point "B" approximately 1/2H after point "A", scanning is performed in the same manner as the scanning of the first field, and four images from the first to fourth video signals are combined into one screen. is combined into a video signal.

The first to fourth recording sections 2 to 10 each record one frame worth of video signals from the camera, so the video signals read from each recording section must be input to the monitor independently without delay. For example, only 100 arbitrary images can be displayed on the entire screen.

Furthermore, if one-screen display of one arbitrary image is not required, in the first recording section 2 to fourth recording section 10,
Compress each video signal to 1/2 the horizontal scanning time, and
If every other scanning line is thinned out and recorded, the recording capacity of each recording section will be 1/4 of the recording capacity of each recording section.
If there is any signal, the video signal switching unit 13 or the second video signal switching unit 23 can input it to the horizontal signal combining unit 13 to obtain a composite image similar to that described above.

In the above explanation, it was assumed that the video signals of the four captured images are combined into one screen image divided into four in the shape of a "field", but one screen may be divided into six, nine, etc. When you want to display 6 or 9 images on one screen, signal processing such as video signal delay, horizontal scanning time compression, and scanning line thinning is performed depending on the number of vertical and horizontal divisions, and the switching output is performed. By doing so, these multiple images can be combined into one screen image.

Note that in the first recording section 2 to fourth recording section 10,
If the video signal from the camera is recorded for one field each, the recording capacity of each recording section can be reduced to half of the above, and in this case, the video signal synthesis section 13 does not thin out the scanning lines. It is also possible to compress the horizontal scanning time and combine four images from the first image based on the first video signal to the fourth image based on the fourth video signal into one screen video signal. . However, in this case, since the combined video signal is a line-sequential scanning video signal, the VTR and monitor for recording and reproducing this video signal must also be compatible with the line-sequential scanning system.

[Effects of the Invention] As explained above, in the image recording device according to the present invention, the video signals of a plurality of images captured by a camera are respectively recorded in the recording section, and the plurality of video signals read from each recording section are recorded. Since it is composited and output so that it can be displayed on a single screen divided into multiple parts such as a monitor, for example, you can display images of yourself taken from multiple angles such as front, back, left, and right on the monitor at the same time to see the relationship between front, back, left, and right. It is possible to confirm the situation, etc., and it is expected to have various uses, such as being used like a full-length mirror.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a main part of an embodiment of an image recording device according to the present invention, FIG. 2 is a block diagram of a main part of another embodiment of the same image recording device, and FIG. 3 is a camera arrangement of the same image recording device. FIG. 4 is a diagram showing another example of camera arrangement of the same image recording device, and FIG. 5 is a diagram for explaining an example in which four images are combined into one screen. In the figure, 1 is the first camera, 2 is the first recording section, 3 is the second camera, 4 is the second recording section, 5 is the horizontal delay section, 6 is the third camera, 7 is the third recording section, and 8 is the third recording section. Vertical delay section, 9 is the fourth camera,
10 is a fourth recording section, 11 is a horizontal/vertical delay section, 12 is a video signal switching section, 13 is a video signal combining section, 14 is a VTR,
15 is a monitor, 21 is a camera, 22 is a first video signal switching section, 23 is a second video signal switching section, 51 is an image based on the first video signal, 52 is an image based on the second video signal, 5
3 is an image based on the third video signal, and 54 is an image based on the fourth video signal.

Claims (1)

[Claims] A camera that outputs a video signal, a plurality of recording sections that record the video signal from the camera, and a plurality of delay sections that are connected to the recording section and delay one video signal and another video signal by a predetermined time, respectively. a video signal switching section that compresses one video signal and another video signal delayed by a predetermined time by the delay section, and switches and outputs the same; and a video signal synthesis section that synthesizes the video signals from the video signal switching section into one screen. An image recording device consisting of: