Depth extraction method of merging motion information and geometric information

A technology of geometric information and depth extraction, applied in image communication, image data processing, instruments, etc., can solve the problem that two-dimensional video sources cannot be applied to stereoscopic display systems, and the cost is high

Active Publication Date: 2010-02-03
万维显示科技(深圳)有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

Traditional 2D video sources cannot be applied to stereoscopic display systems, and it is necessary to produce 3D content that meets display needs
One approach is to use stereo cameras to directly generate 3D video, but this approach is expensive

Method used

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  • Depth extraction method of merging motion information and geometric information
  • Depth extraction method of merging motion information and geometric information
  • Depth extraction method of merging motion information and geometric information

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Experimental program
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Embodiment

[0110] (1) The Hall Monitor test code stream with an image resolution of 352×288 is used as a 2D video file to generate a depth map. Figure 4 It is a screenshot of the Hall Monitor video.

[0111] (2) Establish a statistical background model and generate a background image. Figure 5 It is the background image modeled for the Hall Monitor video.

[0112] (3) By comparing with the background image, detect the moving foreground of the Hall Monitor video, binarize the separated foreground and background, and perform median filtering and mathematical morphology filtering. Figure 6 that is Figure 4 The binary image of the separated background and background after filtering corresponding to the video screenshot;

[0113] (4) For the background image obtained by background modeling, a method based on scene geometric information is used to generate a geometric depth map. Figure 7 that is Figure 5 The geometric depth map of the background image.

[0114] (5) Obtain the motio...

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Abstract

The invention discloses a depth extraction method of merging motion information and geometric information, which comprises the following steps: (1) carrying out scene segmentation on each frame of two-dimensional video image, and separating the static background and the dynamic foreground; (2) processing a scene segmentation chart by binaryzation and filtering; (3) generating a geometric depth chart of the static background based on the geometric information; (4) calculating the motion vector of the foreground object, and converting the motion vector into the motion amplitude; (5) linearly transforming the motion amplitude of the foreground object according to the position of the foreground object, and obtaining a motion depth chart; and (6) merging the motion depth chart and the geometricdepth chart, and filtering to obtain a final depth chart. The method only calculates the motion vector of the separated dynamic foreground object, thereby eliminating the mismatching points of the background and reducing the amount of calculation. Meanwhile, the motion amplitude of the foreground object is linearly transformed according to the position of the foreground object, the motion amplitude is merged into the background depth, thereby integrally improving the quality of the depth chart.

Description

technical field [0001] The invention relates to a method for extracting depth when two-dimensional video is converted to three-dimensional video, in particular to a method for extracting depth by fusing motion information and geometric information. Background technique [0002] Since the invention of television in the 1940s, it has experienced the first revolution from black and white TV to color TV and the second revolution from analog TV to digital TV. 3DTV will be the third revolution of TV technology after digital TV. [0003] The display of 3DTV is inseparable from the production of suitable content. Traditional 2D video sources cannot be applied to stereoscopic display systems, and 3D content that meets display needs needs to be produced. One approach is to use stereo cameras to directly generate 3D video, but this approach is expensive. Another method is to find a suitable algorithm to convert the original 2D video into a 3D video that can be used for stereoscopic d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/00G06T7/00G06T7/20
Inventor 黄晓军黄俊钧王梁昊李东晓张明
Owner 万维显示科技(深圳)有限公司
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