JP2008028876A - Multi-split screen display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To generate and display multi-split screen easy to watch for a user by switching scene constitution and changing position and size of each video image display region, when an arbitrary video image is subjected to enlarged display for displaying two or more video images. <P>SOLUTION: In the multi-split screen display, it is necessary to generate new multi-split screen in order to perform enlarged display of an arbitrary video image while each video image is displayed. The video image is subjected to enlarged display at which the user wants to gaze. In the newly generated multi-split screen, the display region of the video image for enlarged display is made large, and the display region of the other video image is made small. By forming the multi-split screen in this constitution, the video image in the region to be gazed is certified by the enlarged display, while the other video image can be certified at any time. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a multi-screen display system that displays a plurality of videos.

  As background art of this technical field, for example, there is JP-A-7-77965 (Patent Document 1). In this publication, as a purpose, “a multi-divided screen that enables a detailed observation by dividing or displaying a plurality of images on the same screen and enlarging or magnifying the image to be watched therein. The purpose is to provide an errand device "(see summary). In addition, as a configuration, a display having a display screen that displays a plurality of videos divided into different areas and the same number as the number of divisions of the display screen are provided, and the input video is displayed at a predetermined division area of the display screen. A video processing unit that outputs to the display, an input video dividing unit that distributes a plurality of input video to a predetermined processing unit, and a display that controls the video processing unit to zoom up and display the video in a desired divided area A multi-screen display device comprising a control means ”(see abstract).

JP 7-77965 A

  Various methods for displaying a plurality of videos have been proposed.

  For example, in a surveillance system, a multi-screen is generated by reducing and combining images captured by surveillance cameras installed at a plurality of locations, thereby realizing the same screen display of the images at a plurality of locations. . It is also possible to check details by selecting an arbitrary video and performing enlarged display on the entire screen. However, if the enlarged display is performed on the entire screen, the video at other locations cannot be confirmed during that time. A display method for solving this problem is disclosed in the above-mentioned JP-A-7-77965. In this publication, a plurality of videos are displayed on a multi-split screen, and when there is a video to be watched, an enlarged video is displayed in an arbitrary area while maintaining the split screen. Thereby, even when an enlarged image is being displayed, other images can be confirmed.

  Japanese Patent Application Laid-Open No. H10-228688 discloses a technique for performing enlarged display of a video to be watched in one area of a divided screen while displaying each video on a multi-screen. For example, when the images of four cameras A to D are displayed on a four-divided screen and the images of the camera D are enlarged while checking the images of the cameras A to C, the display area of the enlarged images is Limited to the area displaying video.

  Therefore, when displaying an arbitrary video in a plurality of video displays, by switching the screen configuration, the position and size of each video display area is changed to generate and display a multi-screen that is easy for the user to see. Usability improves if you can.

  An object of the present invention is to improve the usability of an apparatus that generates / displays a multi-divided screen.

  The above object can be achieved by the invention described in the scope of claims.

  According to the present invention, usability of an apparatus for generating / displaying a multi-divided screen is improved.

  Problems, configurations, and effects other than those described above will become apparent from the following description of embodiments.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram illustrating a multi-screen display system according to a first embodiment of a method for displaying a plurality of videos according to the present invention. In FIG. 1, 1_1 to 1_n (n = 1, 2, 3,...) Indicate n cameras. Reference numeral 2 denotes a video selection unit, 3 denotes a video processing unit, 4 denotes a multi-divided screen generation unit, 5 denotes a memory, and 6 denotes a display unit. The memory 5 is a buffer for storing a multi-divided screen to be displayed.

The video imaged by the cameras 1_1 to 1_n is input to the video selection unit 2, and the video to be displayed is selected. The selected video is input to the video processing unit 3, and each video is converted into a display size on a multi-divided screen. In the video composition unit 4, each camera video converted to the display size is stored in the memory 5 to generate a multi-divided screen. By transmitting the generated multi-divided screen to the display unit 6, the multi-divided screen is displayed.
FIG. 2 is a diagram showing an example in which an arbitrary video is enlarged and displayed by applying the multi-screen display system according to the first embodiment of the present invention. In FIG. 2, reference numerals 7 to 10 indicate examples of multi-divided screens generated according to the present embodiment. In the multi-divided screens 7 and 8, when the images A to D captured by the four cameras are generated and displayed, the multi-divided screens 9 and 10 are captured by the nine cameras. The case where the images A to I are generated and displayed in a nine-divided screen is shown.

  The multi-divided screen 7 is a four-divided screen in which each camera video is displayed in the same size. In this state, when the user wants to view the video A in a larger size, the user selects the video A by pressing an enlarged display video selection button. With this as a trigger, the screen configuration is switched. First, the video processing unit 3 converts each of the videos A to D into a display size on a newly generated multi-split screen. Then, each converted video is stored in the memory 5 in the multi-divided screen generation unit 4 to generate a new multi-divided screen, and this is transmitted to the display unit 6, thereby creating a new multi-divided screen. 8 is displayed. The multi-divided screen 8 displays the video A in an enlarged manner so that the video can be viewed in more detail. Further, even when the video A is being enlarged and displayed, the video B to D can be always confirmed by performing reduced display.

  Further, a multi-divided screen that enlarges and displays a plurality of videos may be configured. For example, the multi-divided screen 9 is a nine-divided screen in which each camera video is displayed in the same size. However, if the video A and B are to be enlarged and viewed, the screen configuration is similarly switched. A new multi-split screen 10 can be displayed. The multi-divided screen 10 displays the images A and B in an enlarged manner so that the images can be viewed in more detail. Further, the images C and D can be always confirmed by performing reduced display.

  In the first embodiment, an example in which an arbitrary video is enlarged and displayed as in the multi-divided screens 8 and 10 has been shown. In this embodiment, an example in which an image obtained by zooming up an arbitrary area of an arbitrary image is displayed is shown.

  FIG. 3 is a diagram showing an example in which an arbitrary area of an arbitrary video is zoomed up and displayed by applying the multi-divided screen display system according to the first embodiment of the present invention. In FIG. 3, 7, 11, and 12 show examples of the multi-divided screen generated by the present embodiment. The multi-divided screen 7 shows a case where the images A to D captured by four cameras are generated and displayed as a four-divided screen. At this time, when it is desired to zoom in and display the upper half of the video A, the video processing unit 3 first cuts out the upper half of the video A. Then, each of the cut out video A ′ and the video B to D is converted into a display size on a newly generated multi-divided screen. Each converted video is stored in the memory 5 in the multi-divided screen generating unit 4 to generate a new multi-divided screen, and the new multi-divided screen 11 is transmitted to the display unit 6. Is displayed. The multi-divided screen 11 can be displayed in more detail by zooming in on the upper half of the video A and displaying it. Furthermore, the video images B to D can be always confirmed by performing reduced display.

  Since the video A displayed on the multi-divided screen 11 is a zoom-up video, only the upper half of the area actually captured by the camera is displayed. Therefore, the configuration may be switched to a multi-divided screen 12 that simultaneously displays video actually captured by the camera.

  In the second embodiment, a method of enlarging and displaying a video obtained by zooming up an arbitrary area of an arbitrary video has been described. In this method, a region to be zoomed up is cut out from the camera video and enlarged and displayed. In this case, since the resolution of the input camera video is constant, increasing the zoom magnification gradually causes a rough video display. In this embodiment, an example is shown in which each camera is controlled, and an image is captured after zooming in on an arbitrary area, whereby a zoom-up image with high resolution is acquired and displayed.

  FIG. 4 is a block diagram showing a multi-divided screen display system according to a second embodiment of the method for displaying a plurality of videos according to the present invention. FIG. 4 includes a camera control unit 13 as compared with FIG. 1 which is a block diagram of the first embodiment of the present invention. The camera control unit 13 controls the orientation and zoom of each camera.

  For example, when it is desired to zoom up and display the upper half of the image A as in the multi-divided screen 11, the camera control unit 13 controls the direction of the camera capturing the image A and the zoom magnification, and the image A Get a zoomed-in image of the upper half of. This video is selected by the video selection unit 2, converted to an enlarged display size by the video processing unit 3, and stored in the memory 5. At this time, the video stored in the memory 5 is a higher resolution video than the zoom-up video in the first embodiment. Therefore, a clearer display can be realized in the zoom-up image generated and displayed according to the present embodiment.

  In the second and third embodiments, the method of zooming up and displaying the area designated by the user has been described. However, automatic zooming may be performed using some input as a trigger. For example, in a monitoring system, there is a usage method of automatically zooming and displaying an area where movement has occurred by combining with motion detection.

  FIG. 5 is a block diagram showing a multi-screen display system according to a third embodiment of a method for displaying a plurality of videos according to the present invention. FIG. 5 includes a video processing unit 14 in front of the video selection unit 2 as compared to FIG. 4 which is a block diagram of the second embodiment of the present invention.

  The video processing unit 14 performs a motion detection process and a matching process for detecting a specific person or object on each camera video. By this processing, it is possible to select a video to be noticed, determine a place of particular interest in the video, and automatically zoom up the area. Here, the configuration in which the video processing unit 14 is provided outside the camera is shown, but the configuration may be such that the same processing is performed in each camera.

  FIG. 6 is a diagram showing an example in which the multi-screen display system according to the fourth embodiment of the present invention is applied and the enlarged screen is switched by scroll display.

  FIG. 6A shows a case where the state is changed from the state in which the video A is enlarged and displayed to the enlarged display screen of the video B in the 4-split screen. When the video to be enlarged is switched, the scroll display is performed in this way, thereby realizing switching that is easy for the user to see.

  FIG. 6B shows a case where the state in which the images A and B are enlarged and displayed on the 9-divided screen is switched to the enlarged display screen of the images B and C. Here, a case where enlarged display is performed in the order of video A, video B, and video C is shown. The image C selected later is newly displayed on the screen on which the images A and B selected first are displayed. In this case, it is desirable for the user to display in the order of selection. Therefore, the display of the first selected video A is stopped and the screen is switched to the enlarged display screens of the video B and C. Even in this switching, scrolling display is performed to realize switching that is easy for the user to see.

  In this embodiment, switching by horizontal scrolling is shown, but scrolling display in the vertical direction or diagonal direction may be performed.

  In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment.

The present invention can be applied to a system that requires multi-screen display such as a monitoring system.

1 is a block diagram illustrating a multi-screen display system according to a first embodiment of the present invention. It is a figure which shows an example which applies the multi-split screen display system which concerns on 1st Example of this invention, and expands and displays an arbitrary image | video. It is a figure which shows an example which applies the multi-division screen display system which concerns on 1st Example of this invention, and zooms up and displays the arbitrary area | regions of arbitrary videos. It is a block diagram which shows the multi-split screen display system which concerns on 2nd Example of this invention. It is a block diagram which shows the multi-split screen display system which concerns on 3rd Example of this invention. It is a figure which shows an example which applies the multi-split screen display system which concerns on 4th Example of this invention, and switches an enlarged display screen by scroll display.

Explanation of symbols

1_1 to 1_n Camera 2 Video selection unit 3 Video processing unit 4 Multi-division screen generation unit 5 Memory 6 Display unit 7 to 12 Multi-division screen 13 Camera control unit 14 Video processing unit

Claims (12)

An input means for inputting a plurality of video data;
Multi-divided screen generating means for generating multi-divided screen data so as to display each of the plurality of video data in a predetermined area generated by dividing the display screen of the display means;
An output means for outputting the multi-division screen data generated by the multi-division screen generation means to the display means;
Enlargement means for enlarging one or more of the plurality of video data;
With
The multi-divided screen generation means changes the predetermined area when the video data is enlarged by the enlargement means as compared with a case where the video data is not enlarged,
A video data processing apparatus. In a multi-screen display device that displays a plurality of videos,
Switching means for switching to a screen for enlarging and displaying one or more arbitrary videos designated by the user;
Output means for outputting to the display means to display the enlarged display video and each other video on one screen;
A multi-divided screen display device comprising: The multi-screen display device according to claim 2,
The switching means operates by pressing a selection button for selecting an image to be enlarged and displayed.
Multi-screen display device characterized by the above. In a multi-screen display device that displays a plurality of videos,
A switching means for automatically switching to a screen for enlarging and displaying one or more arbitrary images;
Output means for outputting to the display means to display the enlarged display video and each other video on one screen;
A multi-divided screen display device comprising: The multi-divided screen display device according to claim 3,
The switching means operates with an alarm from the motion detection sensor as a trigger,
Multi-screen display device characterized by the above. The multi-screen display device according to claim 2 or 4,
Changing the position of each video display area by switching the screen configuration,
Multi-screen display device characterized by the above. The multi-screen display device according to claim 2 or 4,
By changing the screen configuration, changing the size of each video display area,
Multi-screen display device characterized by the above. The multi-screen display device according to claim 2 or 4,
Display the enlarged video larger than each other video,
Multi-screen display device characterized by the above. The multi-screen display device according to claim 2 or 4,
Zooming in on an arbitrary area of an arbitrary video,
Multi-screen display device characterized by the above. The multi-screen display device according to claim 2 or 4,
By controlling a plurality of imaging means for imaging each video,
Capturing a zoom-up image of an arbitrary area and enlarging the zoom-up image;
Multi-screen display device characterized by the above. The multi-screen display device according to claim 9 or 10,
Simultaneously displaying the entire video before zooming in,
Multi-screen display device characterized by the above. The multi-screen display device according to claim 2 or 4,
When enlarging multiple images continuously,
Switching the enlarged display screen by scroll display;
Multi-screen display device characterized by the above.

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