Epipolar line rectification method capable of providing instruction for shooting of 3-dimensional programs

An epipolar correction and program technology, applied in image communication, electrical components, stereo systems, etc., can solve problems such as distortion of correction results, inability to provide camera attitude adjustment guidance for 3D program live shooting, etc.

Active Publication Date: 2012-04-04
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

This method relies on the matching accuracy of the epipolar lines in the stereo image. When there is a mismatch in the matching, it will often cause large distortions in the correct

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  • Epipolar line rectification method capable of providing instruction for shooting of 3-dimensional programs
  • Epipolar line rectification method capable of providing instruction for shooting of 3-dimensional programs
  • Epipolar line rectification method capable of providing instruction for shooting of 3-dimensional programs

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[0069] The embodiments of the present invention will be described in detail below. This embodiment provides detailed implementation and specific operating procedures of the technical solution of the present invention, but the protection scope of the present invention is not limited to the following embodiments.

[0070] Such as figure 1 As shown, the epipolar correction method of the present invention includes the extraction and matching of SIFT feature points and obtaining the initial matching point pair set, using the GCE algorithm to eliminate mismatching and extracting the consistent maximum interior point set, the nonlinear least square method to extract the camera rotation angle and Pixel focal length and other parameters, the use of camera parameters to construct the epipolar correction matrix these parts.

[0071] The first step is to extract and match the SIFT feature points of the two input images to generate an initial matching point pair set A={(x Li , X Ri )|1≤i≤N}. ...

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Abstract

The invention discloses an epipolar line rectification method capable of providing instruction for shooting of 3-dimensional programs. According to the method, a genetic consistency estimation method is utilized to eliminate mistake matching so as to acquire the point set in consistency to the maximum; a basis matrix parameter is changed into a parameter containing a camera posture information, an error equation is established through a matching point pair coordinate, further the camera parameter is solved by adopting the least squares method, then the epipolar line rectification matrix is solved directly through the obtained camera parameter, and information that how the camera posture is regulated is provided for field 3-dimensional shooting. The invention not only can be used for post processing of 3-dimensional programs, but also can provide instructions for regulating the camera posture for field shooting of 3-dimensional programs, and effectively reduces distortion of three-dimensional image pairs after epipolar line rectification. The epipolar line rectification method is implemented simply on the whole, and can be extensively applied to the important fields of three-dimensional matching, depth map extraction, three-dimensional tracking, and the like.

Description

technical field [0001] The invention relates to an epipolar line correction method in the technical field of stereo vision, in particular to an epipolar line correction method that can be applied to 3D program post-processing and can provide camera attitude adjustment guidance for 3D program on-site shooting. Background technique [0002] In recent years, with the enthusiasm of 3D movies such as "Avatar", stereoscopic vision technology has attracted extensive research by scholars at home and abroad. In the practical application research of stereo vision, in order to watch 3D programs comfortably, it is inevitable to perform epipolar correction on stereo image pairs. The so-called epipolar line correction means that by performing a projective transformation on the left and right view images, the images are projected onto a common space plane parallel to the baselines of the two cameras, so that the epipolar lines corresponding to the two images are in the same horizontal line...

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Application Information

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IPC IPC(8): H04N13/00
Inventor 周军姚达
Owner SHANGHAI JIAO TONG UNIV
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