JPH08102936A - Multi-screen display system - Google Patents

Abstract

PURPOSE: To prevent in advance mis-operation of a video camera by making a cross reference between a multi-screen display and the video camera clear. CONSTITUTION: Each of display means 110a-110n is provided in each of plural video cameras 100a-100n to send a video signal to a monitor 106. When any of plural screen patterns displayed in multiple on a display screen of the monitor 106 is selected by a screen selection means 107, the display means 110 provided to the video cameras 100a-100n corresponding to the selected image is displayed. Thus, the operator clearly recognizes the video camera 100 corresponding to the selected image.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-screen display system, and is used for a multi-screen display system for displaying a plurality of images on a monitor at the same time, for example, in a TV monitoring system or a video conference system. It is suitable.

[0002]

2. Description of the Related Art In a television monitoring system, a video conference system, etc., images from a plurality of video cameras are displayed on a single monitor in a multi-screen manner. But,
There is a problem that information such as a video camera corresponding to each screen and a shooting location becomes unclear just by displaying a plurality of images on the screen at the same time.

Therefore, conventionally, a character display means is provided to display character information such as a photographing location and a camera ID on each screen on a monitor screen. In addition, in a video camera for broadcasting, for example, a light emitting unit is provided in the video camera so that a person as a subject can recognize which of the plurality of video cameras is capturing the image. There is.

[0004]

Thus, when a remotely controllable video camera is installed and used in a remote place, character information is given to the display screen on the monitor as in the prior art. With the method, it is possible to sufficiently associate the display screen with the video camera capturing the image of the display screen.

However, when a plurality of video cameras are installed adjacent to each other within a range in which the operator operating the terminal can directly look at the camera body, the shooting locations of the video cameras are almost the same, so that the characters relating to the shooting location are displayed. There was a problem that information could not be given distinctly.

Further, even if the ID of the video camera is displayed on the monitor, since no information on the display screen is displayed on the video camera, the correspondence between the video camera and the display screen becomes unclear. Therefore, there is a problem that a video camera different from the video camera to be operated is selected and operated when operating the camera platform such as operating the camera platform or focusing.

In view of the above-mentioned problems, the first object of the present invention is to make it possible to clarify the correspondence between the multi-display screen and the video camera and to prevent erroneous operation of the video camera. And

A second object is to make the correspondence between the multi-display screen and the video camera visually clear.

A third object of the invention is to realize at low cost a structure that makes it possible to visually clarify the correspondence between the multi-display screen and the video camera.

A fourth object is to make it possible to clearly distinguish the selected screen from other screens.

A fifth object is to make it possible to clearly discriminate both the selected screen and the video camera corresponding to the selected screen.

A sixth object is to make it possible to more clearly discriminate both the selected screen and the video camera corresponding to the selected screen.

A seventh object is to enable the marker to be displayed without adversely affecting the contents of the display screen.

Further, unlike the multi-screen display system according to any one of claims 1 to 7, the correspondence between all display screens and the video camera can be recognized at once without selecting a screen. This is the eighth purpose.

A ninth object is to display the marker without affecting the display screen and to easily and inexpensively configure the light emitting means of the video camera.

[0016]

A multi-screen display system of the present invention multi-images a video signal supplied from a plurality of video output devices including a video camera, a VTR, etc. In the multi-screen display system in which the list is simultaneously displayed on the monitor screens, the screen selecting means for selecting any one screen from the multi-screens displayed on the monitor screen and the screen selecting means Camera discriminating means for discriminating the video camera corresponding to the selected screen, display means provided for each video camera for displaying the selection made by the screen selecting means, and for each video camera. A display signal generating means for generating a display signal for driving the display means, and when a screen is selected by the screen selecting means, The serial display signal generating means to generate a display signal, and so as to drive a display unit disposed on the video camera corresponding to the selected screen.

Another feature of the present invention is that
The display means provided in each of the video cameras is a light emitting element.

Another feature of the present invention is that the display means provided in each of the video cameras is a light emitting diode.

Another feature of the present invention is that a marker generating means for generating a marker characterizing the screen selected by the screen selecting means is provided, and the marker is displayed on the screen selected by the screen selecting means. It is characterized by doing.

Another feature of the present invention is that a marker characterizing the screen selected by the screen selecting means and a display provided on the video camera corresponding to the screen selected by the screen selecting means. The feature is that both means are displayed.

Another feature of the present invention is that a marker characterizing the screen selected by the screen selecting means and a display provided on the video camera corresponding to the screen selected by the screen selecting means. The feature is that both means are made to blink in the same cycle.

Another feature of the present invention is that a screen frame is used as a marker for characterizing the screen selected by the screen selecting means.

Another feature of the present invention is that a video signal supplied from a plurality of video output devices such as a video camera and a VTR is subjected to multi-image processing, and a plurality of videos are displayed on a single monitor. In a multi-screen display system configured to display a list on a screen, a plurality of light emitting elements provided in each of the video cameras, a light emitting signal generating means for generating a light emitting signal for causing each of the light emitting elements to emit light, Marker generating means for generating a marker characterizing each of the screens simultaneously displayed on the monitor screen, and oscillating means for generating a signal for blinking each of the light emitting elements and each of the markers in different cycles, Switching means for establishing correspondence between each of the marker generating means and the light emission signal transmitted to each of the video cameras Only, it is characterized in the so as to blink and the marker of each screen, and a light emitting element provided in each of the video camera corresponding to it in the same cycle.

Another feature of the present invention is that a screen frame is used as a marker displayed on each screen subjected to multi-image processing, and a light emitting diode is used as a light emitting element of the video camera. There is.

[0025]

Since the present invention comprises the above technical means, a plurality of screens displayed in a multi-image on the display screen of one monitor,
Since it becomes possible to clearly inform the operator of the correspondence relationship with a plurality of video cameras provided for sending video signals to the monitor, when the operator operates a video camera associated with a certain screen In addition, it becomes possible to clearly recognize the correspondence between the display screen and the video camera, and prevent the erroneous operation of the video camera.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the multi-screen display system of the present invention will be described below with reference to the drawings. First, the configuration of the multi-screen display system will be described with reference to FIG. In the system configuration diagram of FIG. 4, 400a to 400n are video cameras, 401 is a multi-image processing device, 402 is an operation terminal for controlling the system, and 403 is a monitor.

In the multi-screen display system configured as described above, a plurality of video signals respectively output from the video cameras 400a to 400n are converted into a multi-screen by the multi-image processing device 401 and output to the monitor 403 for display. To do. The control of the system is performed by the operation terminal 402.
I am going to do it.

Next, as a first embodiment, a block diagram of an embodiment corresponding to claims 1 to 3 is shown in FIG. In FIG. 1, reference numerals 100a to 100n are video cameras that can be remotely operated, and 101a to 101n are input means for connecting video input devices.

Reference numerals 102a to 102n are A / D converters for digitizing video signals, 103 is display control means for multi-image processing of a plurality of video input signals, 104 is a memory for storing image information, and 105 is multi-image processing. A D / A converter for converting a digital video signal into an analog signal, and 106 is a monitor.

Reference numeral 107 denotes a screen selection means for selecting an arbitrary one screen from the multi-screens. As such a screen selection means, a key operation from a terminal or a click with a mouse can be considered. Reference numeral 108 denotes a camera discriminating means for discriminating the video camera corresponding to the selection screen.

Reference numeral 109 is a display signal generating means for generating a signal for displaying on the display means provided in the selected video camera. Reference numerals 110a to 110n are display means arranged in the respective video cameras 100a to 100n, and 111 is a multi-image processing device.

The operation of the thus constructed multi-screen display system of this embodiment will be described below. First, the flow of processing from multi-image processing of a plurality of videos to output to the monitor 106 will be described.

The input video signal picked up and input by the video cameras 100a to 100n is input to the A / D converter 10.
A / D conversion is performed by 2a to 102n. Next, the display control unit 103 sets a display layout, reads / writes a video signal from / to the memory 104 according to the setting, and reduces an original image to generate a multi-image. The multi-image processed signal read from the memory 104 is D / A converted by the D / A converter 105 and output to the monitor 106.

Next, the operation of the characteristic portion of this embodiment will be described in detail. First, select one from the multi-screen
One screen is selected by the screen selection means 107. The display position of the video of each video camera during multi-screen display is not fixed, but can be freely set by the user.

Next, the camera discrimination means 108 discriminates the video camera corresponding to the selected screen. Then, the signal from the display signal generating means 109 is transmitted to the display means arranged in the determined video camera during the screen selection period to display the signal.

The display means 110a to 110a of the video camera.
For confirmation of 110n and the selection screen, a method of providing a frame on each screen as shown in FIG. 5 and changing the color of the frame of the screen selected by the screen selection means 107 can be considered. Where 50
Reference numeral 0 is a monitor, 501a to 501d are screens subjected to multi-image processing, and 502a to 502d are screen frames.

The display means may be a character display by a liquid crystal display or the like, or a display means such as lighting or blinking by a light emitting element. However, rather than displaying characters on a liquid crystal display or the like, it is easier to visually recognize by using the light emitting element, and the video camera corresponding to the selection screen can be easily confirmed. Further, among the light emitting elements, the light emitting diode is most effective in terms of cost and circuit scale. Further, in this embodiment, an example in which a plurality of video cameras are provided as the video output device is shown, but a VTR may be provided in addition to the video cameras.

Next, a second embodiment of the multi-screen display system of the present invention will be described. The second embodiment is an embodiment corresponding to claims 4 and 5, and its configuration is shown in FIG. In FIG. 2, the same parts as those shown in FIG. 1 are designated by the same reference numerals, and detailed description thereof will be omitted.

In FIG. 2, reference numerals 200a to 200n denote marker generating means for displaying markers such as circle marks near or inside each screen subjected to multi-image processing, and the positions displayed on the screen are different. ing. 201
Is an oscillating means, and 202 is a switch.

The operation of the second embodiment will be described below. The operations of the video camera 100 to the monitor 106 are the same as those in the first embodiment. A marker signal is generated from one of the marker generating means 200a to 200n corresponding to the screen selected by the screen selecting means 107. Then, the marker signal and the display signal generating means 10
The display signal output from 9 is supplied to the switch 202,
By turning the switch 202 on and off by the oscillating means 201, both the marker displayed on the screen and the display means 110a to 110n of the video camera blink at the same frequency.

If there is no space for displaying the marker near each screen on the display screen, displaying the marker inside the screen becomes an obstacle. Therefore, it is desirable to provide a frame on each screen as described in claim 5 and use this as a marker. Further, it is desirable to use a light emitting diode as the display means of the video camera, as described in the first embodiment.

Next, a third embodiment according to claims 6 and 7 is shown in FIG. In FIG. 3, 301a to 3
01n is a light emitting element attached to each video camera. Reference numeral 302 denotes light emitting elements 301a to 301 of the video camera.
It is a light emission signal generating means for sending a light emission signal to 01n.

Reference numeral 303 is a switching means for establishing correspondence between the markers on each screen and the video camera. 304a-3
Numeral 04n denotes oscillating means having different oscillating frequencies, 305
Reference characters a to 305n are switches for turning on and off the marker signal and the light emission signal at the same frequency by the oscillating means 304a to 304n.

The operation will be described below. The operations of the video camera 100 to the monitor 106 are the same as those in the above embodiment. Focusing on the first video camera 100a, when the marker generating means corresponding to the first video camera 100a is the first marker generating means 200a, the switching means 303 causes the switching means 303 to be the first marker generating means 200a.
Signal is derived to the first switch 305a.

As a result, the marker signal and the light emission signal from the light emission signal generating means 302 are input to the first switch 305a. Next, the marker and the corresponding light emitting element of the video camera can be blinked at the same frequency by turning on and off the first switch 305a at the frequency by the first oscillating means 304a. The marker signal output from the first switch 305a is input to the display control means 103,
The light emission signal is supplied to the first light emitting element 301a.

Since the oscillating frequencies of the oscillating means 304a to 304n are different from each other, the blinking speed of each marker and the light emitting element of the video camera is different.
Therefore, the correspondence between each multi-image processed screen and the corresponding video camera can be recognized at a glance due to the difference in blinking speed. As described in the above embodiment, the light emitting element is preferably a light emitting diode and the marker is preferably a screen frame.

Further, in the third embodiment, the marker generating means 200a to 200n are sequentially switched by the switching means 303, but the marker generating means 200a to 200n are switched.
The connections from 200n to the switches 305a to 305n should be made directly, and the switches 305a to 305n should be connected.
The light emission signal output from n may be switched by the switching unit 303.

Further, the marker generating means 200a to 200
n is not provided in plural as shown in FIGS. 2 and 3,
It is also possible to generate a plurality of markers at different positions by one marker generating means.

Similarly, as shown in FIG. 3, a plurality of oscillating means 304 may not be provided, and a plurality of signals having different frequencies or duty ratios can be produced by changing the frequency division ratio from one oscillation source. Is.

[0050]

As described above, according to the present invention, as described above, the display means for displaying the correspondence with the video camera capturing the image on the display screen is the video. Since it is also arranged on the camera side, it is possible to make the operator clearly recognize the corresponding relationship between the plurality of display screens which are multi-displayed on one monitor screen and the plurality of video cameras. Thus, it is possible to prevent an erroneous operation when operating the video camera to change the shooting state of a certain screen.

According to the second aspect of the invention, the light emitting element is provided on the video camera side, and the light emitting element provided in the video camera corresponding to the selected display screen is caused to emit light. The video camera corresponding to the screen can be easily recognized visually.

According to the third aspect of the present invention, since the light emitting diode is provided as the light emitting element provided in the video camera, the video camera corresponding to the selected screen can be easily visually recognized. The system for causing recognition can be inexpensively constructed.

According to the invention of claim 4, since the marker is displayed on the display screen selected by the screen selecting means, it is easy to determine which of the plurality of displayed screens has been selected. And, it can be surely recognized.

According to the invention of claim 5, a marker is displayed on the selection screen, and both the marker displayed on the selection screen and the display means on the video camera corresponding to the selection screen are displayed. Since it was displayed, the selection screen and the corresponding video camera,
It can be easily and clearly discriminated.

According to the sixth aspect of the present invention, the marker is displayed on the selection screen, and the marker displayed on the selection screen and the display means on the video camera corresponding to the selection screen are provided. Since the blinking is performed in the same cycle, the selection screen and the corresponding video camera can be more easily and clearly discriminated.

According to the seventh aspect of the invention, since the screen frame is used as the marker, it is possible to make the display easy to understand while not adversely affecting the display content of the screen.

According to the invention described in claim 8, the correspondence between all the display screens and the video cameras can be recognized at one time, and the operator's trouble of selecting the screens can be largely omitted. it can.

According to the invention of claim 9, a frame is provided on the screen as a marker to be displayed on each screen subjected to multi-image processing, and a light emitting diode is used as a light emitting element of a video camera. The marker can be displayed so as not to affect the screen, and the light emitting element of the video camera can be easily and inexpensively configured.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a multi-screen display system of the present invention and showing a first embodiment according to claims 1 to 3.

FIG. 2 is a block diagram showing a second embodiment according to claims 4 and 5.

FIG. 3 is a block diagram showing a third embodiment according to claims 6 and 7.

FIG. 4 is a block diagram showing an outline of a multi-screen display system.

FIG. 5 is a diagram showing a screen display example of a multi-screen system according to the present invention.

[Explanation of symbols]

 100a-100n Video camera 103 Display control means 104 Memory 106 Monitor 107 Screen selection means 108 Camera discrimination means 109 Display signal generation means 110a-110n Display means 111 Multi-image processing device 200a-200n Marker generation means 201a-201n Oscillation means 301a-301n Light emitting element 302 Light emitting signal generating means 303 Switching means 304a to 304n Oscillating means

Claims (9)

[Claims] 1. Multi-image processing of video signals supplied from a plurality of video output devices including at least a video camera,
In a multi-screen display system in which a plurality of videos are simultaneously displayed as a list on one monitor screen, a screen selection means for selecting any one screen from the multi-screens displayed on the monitor screen, A camera discriminating means for discriminating a video camera corresponding to the screen selected by the screen selecting means, a display means arranged in each video camera for displaying the selection by the screen selecting means, and A display signal generating means for generating a display signal for driving the display means arranged in the video camera is provided, and when a screen is selected by the screen selecting means,
A multi-screen display system characterized in that a display signal is generated by the display signal generating means, and a display means provided in a video camera corresponding to the selected screen is driven. 2. The multi-screen display system according to claim 1, wherein the display means provided in each of the video cameras is a light emitting element. 3. The multi-screen display system according to claim 1, wherein the display means provided in each of the video cameras is a light emitting diode. 4. The marker generating means for generating a marker characterizing the screen selected by the screen selecting means is provided, and the marker is displayed on the screen selected by the screen selecting means. The multi-screen display system described in 1. 5. A marker for characterizing a screen selected by the screen selecting means and a display means provided on a video camera corresponding to the screen selected by the screen selecting means are both displayed. The multi-screen display system according to claim 4, which is characterized in that. 6. The marker for characterizing the screen selected by the screen selecting means and the display means provided on the video camera corresponding to the screen selected by the screen selecting means both blink in the same cycle. The multi-screen display system according to claim 5, wherein: 7. The multi-screen display system according to claim 4, wherein a screen frame is used as a marker for characterizing the screen selected by the screen selection means. 8. Multi-image processing of video signals supplied from a plurality of video output devices including at least a video camera,
In a multi-screen display system in which a plurality of images are displayed as a list on one monitor screen, a plurality of light emitting elements provided in each of the video cameras and a light emitting signal for causing each of the light emitting elements to emit light are provided. A light emission signal generation means for generating, a marker generation means for generating a marker characterizing each screen displayed on the monitor screen at the same time, and the light emitting elements and the markers respectively blink in different cycles. An oscillating means for generating a signal and a switching means for establishing correspondence between the marker generating means and the light emission signal transmitted to the video cameras are provided, and the markers on the screens and the video cameras corresponding thereto are provided. A multi-screen display characterized in that the provided light emitting element is made to blink in the same cycle. Stem. 9. The multi-screen display system according to claim 8, wherein a screen frame is used as a marker displayed on each screen subjected to multi-image processing, and a light-emitting diode is used as a light-emitting element of the video camera. .