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Method for adjusting object parallax in stereo image

A technology of stereoscopic image and adjustment method, applied in the field of stereoscopic vision and image processing, can solve the problem of not considering the situation that the object moves away from the observer, and achieve the effect of avoiding deformation and ensuring image quality

Inactive Publication Date: 2017-01-25
TIANJIN UNIV
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  • Application Information

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Problems solved by technology

However, this approach does not take into account moving objects away from the viewer, in which case holes will be created

Method used

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  • Method for adjusting object parallax in stereo image
  • Method for adjusting object parallax in stereo image
  • Method for adjusting object parallax in stereo image

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Experimental program
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Embodiment approach

[0130] 1. Extraction of key points and segmentation of adjusted objects

[0131] Extract the key points by the SIFT method, and use the matching algorithm to match the left and right images: for a SIFT key point in the left image, find the nearest and second closest key points to the key points in the left image among all the SIFT key points in the right image, Note that the distances from the two to the key points in the left image are dis1 and dis2 respectively. If dis1 and dis2 satisfy the following formula, the pair of key points with the closest distance in the left and right images is regarded as a correct match, otherwise it is regarded as a wrong match and eliminated.

[0132] d i s 1 d i s 2 0.8

[0133] Perform the above process on all key points in the left and right images to get all matching key point pairs. After that...

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Abstract

The invention belongs to the technical field of image processing and stereoscopic vision, relates to a method for adjusting object parallax in a stereo image, and lays a foundation for post-processing, comfort improvement and the like of the stereo image. According to the technical scheme, the method for adjusting object parallax in the stereo image comprises steps as follows: 1) extracting key points and partitioning a to-be-adjusted object; 2) calculating ideal coordinate values of the key points on the basis of a depth mapping model: establishing the depth mapping model according to the requirement of adjustment of the object parallax of the stereo image, and calculating ideal coordinate values of the key points according to the depth mapping model; 3) constructing an energy equation; 4) calculating grid vertex coordinate values in an optimization manner; 5) processing the image with a warping technology. The method is mainly applied to a stereo image post-processing occasion.

Description

technical field [0001] The invention belongs to the technical fields of image processing and stereo vision, and in particular the invention relates to a method for adjusting object parallax in a two-viewpoint stereo image. Background technique [0002] Based on the stereo image pair of the same scene acquired from two viewpoints, the parallax adjustment of each pixel can be changed by moving the positions of the matching pixels in the two viewpoints in the horizontal direction, so that the parallax adjustment can be realized. According to whether the depth image is used, the parallax control algorithm can be divided into two categories: 1) The algorithm that uses the depth map for parallax adjustment. This type of method usually requires an accurate disparity map or depth map for depth adjustment, usually according to specific needs. The depth map is altered and a virtual viewpoint rendering technique is used to produce a depth-adjusted stereoscopic image. However, the acqu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/80
Inventor 雷建军梅旭光侯春萍段金辉吴敏李乐乐
Owner TIANJIN UNIV