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Stereo image objective quality evaluation method base on matrix decomposition

A stereoscopic image and evaluation method technology, applied in image analysis, image data processing, instruments, etc., can solve problems such as poor consistency and lack of consideration of depth perception of stereoscopic images

Inactive Publication Date: 2013-03-20
NINGBO UNIV
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Problems solved by technology

These two image quality evaluation methods are mainly used to evaluate the quality of planar images. Since they lack the depth perception of stereoscopic images, if they are used to evaluate the quality of stereoscopic images, the consistency between the objective evaluation results and subjective perception will be bad

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  • Stereo image objective quality evaluation method base on matrix decomposition
  • Stereo image objective quality evaluation method base on matrix decomposition
  • Stereo image objective quality evaluation method base on matrix decomposition

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Embodiment Construction

[0083] The present invention will be further described in detail below with reference to the embodiments of the accompanying drawings.

[0084] The present invention proposes a method for evaluating the objective quality of stereoscopic images based on matrix decomposition. The quality evaluation index of stereoscopic images is obtained by nonlinear combination of two parts: image quality evaluation of left and right viewpoint images and depth perception evaluation of stereoscopic images. like figure 1 shown, including the following steps:

[0085] ①Let S orgTo be the original undistorted stereo image, let S dis For the distorted stereo image to be evaluated, set S org L org , the S org The right-view image of R org , the S dis L dis , the S dis The right-view image of R dis .

[0086] ② put L org , R org , L dis and R dis The four images are divided into (W-3)×(H-3) overlapping image blocks with a size of 4×4. Here, in order to utilize the correlation between i...

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Abstract

The invention discloses a stereo image objective quality evaluation method base on matrix decomposition which is designed from the aspect of structure distortion, capable of effectively using singular value stability, well representing stereo image structure information, making use of the fact that a hessian matrix can well represent of image texture or bump, making use of the fact that singular value can well represent structure information of an absolute difference value figure, fully considering sensitivity of a human eye to an area, integrating stereo image quality and depth perception quality, effectively improving relevance between stereo image objective quality evaluation result and subjective perception, accurately measuring distortion degree of the stereo image, and providing a performance evaluation criterion for an encoding method, a drawing method, an error hiding method and the like in a stereo system.

Description

technical field [0001] The invention relates to an image quality evaluation method, in particular to an objective quality evaluation method of stereoscopic images based on matrix decomposition. Background technique [0002] With the rapid development of Internet, communication, multimedia information and image processing technology, the application of stereoscopic image technology is more and more extensive, such as in stereoscopic digital TV, 3D video conferencing system, consumer electronics and many other fields. However, stereoscopic images with a sense of depth and presence will cause quality loss in areas such as image acquisition, encoding and compression, and network transmission, so how to measure the degree of this distortion is very important. At present, the methods used to evaluate image quality mainly include: the method of image quality evaluation using the peak signal-to-noise ratio of the plane and the method of image quality evaluation using linear weightin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
Inventor 蒋刚毅毛香英郁梅朱江英王晓东彭宗举邵枫
Owner NINGBO UNIV
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