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Method and system for combining videos for display in real-time

A real-time display and video technology, applied in the field of image processing, can solve problems such as unsuitable for real-time application and complexity

Inactive Publication Date: 2009-05-13
MITSUBISHI ELECTRIC CORP
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  • Claims
  • Application Information

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Problems solved by technology

Typically, prior art methods are complex and not suitable for real-time applications

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  • Method and system for combining videos for display in real-time
  • Method and system for combining videos for display in real-time
  • Method and system for combining videos for display in real-time

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Embodiment Construction

[0015] Method and system overview

[0016] 1 shows a system for combining a set of narrow-angle input videos 111 of a scene captured by a set of narrow-angle cameras 101 to produce an output video for a display device 108 in real time, according to one embodiment of the invention. 110.

[0017] The input video 111 is merged using the wide-angle input video 112 captured by the wide-angle camera 102 . The output video 110 can be presented on the display device 108 . In one embodiment, the display device comprises a set of projection display devices. In a preferred embodiment, there is one projector for each narrow angle camera. These projectors can be front or rear projectors.

[0018] FIG. 1B shows a set of narrow-angle images 111 . Image 111' is a reference image described below. The wide-angle image 112 is represented by a dashed line. As can be seen, and as an advantage, the input image does not have to be rectangular. Furthermore, the input images are not required t...

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Abstract

A system and method combines videos for display in real-time. A set of narrow-angle videos and a wide-angle video are acquired of the scene, in which a field of view in the wide-angle video substantially overlaps the fields of view in the narrow-angle videos. Homographies are determined among the narrow-angle videos using the wide-angle video. Temporally corresponding selected images of the narrow-angle videos are transformed and combined into a transformed image. Geometry of an output video is determined according to the transformed image and geometry of a display screen of an output device. The homographies and the geometry of the display screen are stored in a graphic processor unit, and subsequent images in the set of narrow-angle videos are transformed and combined by the graphic processor unit to produce an output video in real-time.

Description

technical field [0001] The present invention relates generally to image processing, and more particularly to combining multiple input image sequences to produce a single output image sequence. Background technique [0002] In digital imaging, there are two main methods by which an output image can be produced from multiple input images. The compositing step combines visual elements (objects) from separate input images to create the illusion that all elements are parts of the same scene. Stitching (mosaic) and panorama (panorama) combine all input images into a single output image. Typically, a mosaic consists of non-overlapping images arranged in some sort of tessellation. A panorama generally refers to a wide-angle representation of a view. [0003] It is desirable to combine all images from multiple input sequences (input videos) to produce a single output image sequence (output video). For example, in surveillance applications, it is desirable to obtain high-resolutio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/262
CPCG06T3/40H04N5/2628H04N5/247H04N5/2627H04N5/2624H04N7/181H04N23/90
Inventor 叶罗恩·范巴尔沃伊切赫·毛图希克
Owner MITSUBISHI ELECTRIC CORP
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