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Method and system for acquiring depth map of binocular stereo video sequence

A video sequence, binocular stereo technology, applied in stereo systems, image communications, electrical components, etc., can solve problems such as difficult to solve, lack of natural information, etc.

Active Publication Date: 2013-08-14
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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AI Technical Summary

Problems solved by technology

[0006] Stereo matching algorithms are mainly divided into two categories, global stereo matching algorithm and local stereo matching algorithm. The two algorithms have a common problem that it is difficult to solve the problem of lack of natural information such as occlusion.

Method used

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  • Method and system for acquiring depth map of binocular stereo video sequence
  • Method and system for acquiring depth map of binocular stereo video sequence
  • Method and system for acquiring depth map of binocular stereo video sequence

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Embodiment Construction

[0057] The present invention will be further described below with reference to the accompanying drawings and in combination with preferred embodiments.

[0058] This embodiment is a method and system for acquiring a depth map of a binocular stereoscopic video sequence, figure 2 It is a module structure diagram of the system, which mainly includes the following four modules:

[0059] Preprocessing module 201;

[0060] Foreground extraction module 202;

[0061] Depth map acquisition module 203; and

[0062] post-processing module 204 .

[0063] The preprocessing module is used to read in the left and right images, and denoise the right image, and then use the clustering algorithm to cluster similar pixels in the image and merge them into regions, and record the region information. In this implementation method, K -Means algorithm for clustering.

[0064] For the flowchart of the preprocessing module, see image 3 , including:

[0065] Step 301 of reading in pictures: rea...

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Abstract

The invention discloses a method and a system for acquiring a depth map of a binocular stereo video sequence. The method comprises the following steps: performing clustering on a first image in two images, adopting a region growing manner to transform all clusters to connected regions, and recording average five-dimension coordinates of all regions and adjacent information between two regions; receiving manual signs for marking foreground and background of the first image input by an operator, and calculating connection weight and sign weight of the regions; taking the connection weight and sign weight of the regions as input, and transferring the Graphcut algorithm to partition the foreground and the background of the first image; and taking the second image of the two images as a reference image, according to the partition result, calculating a disparity map of the foreground based on the partial self-adaption weight stereo matching algorithm, calculating a disparity map of the background based on the Rank transformation stereo matching algorithm, and then transforming the disparity maps into depth maps. The system is a system executing the method. The method and the system have the benefits of correct result and low complexity.

Description

technical field [0001] The invention belongs to the field of computer image processing, in particular to a method and system for acquiring a depth map of a binocular stereoscopic video sequence. Background technique [0002] With the rapid development of the current society, the demand for cultural entertainment appreciation is also increasing. The requirements for watching TV and movies are not only high-definition color, but also more realistic three-dimensional effects for movie viewers. The research and application of stereoscopic video has become a current hot issue. Stereoscopic video-related technical issues are also considered urgent issues. [0003] Stereoscopic video is divided into traditional binocular stereoscopic video and multi-viewpoint video. Binocular stereoscopic video is composed of two video sequences. The point of view is single, which is far from the three-dimensional experience in real life. The multi-viewpoint video can adapt to the needs of naked-...

Claims

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Application Information

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IPC IPC(8): H04N13/00
Inventor 王好谦杜成立张永兵戴琼海
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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