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Method for evaluating stereo image vision comfort level based on machine learning

A stereoscopic image and machine learning technology, applied in stereoscopic systems, image communication, television, etc., can solve problems such as inaccurate prediction

Active Publication Date: 2013-10-09
湖州优研知识产权服务有限公司
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AI Technical Summary

Problems solved by technology

However, according to the attention characteristics of human stereo vision, the human eye is only sensitive to the visual comfort / discomfort of some visually important areas. If the global disparity statistical features are used to predict the visual comfort of visually important areas, it will lead to inaccurate Prediction gets an objective evaluation value

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  • Method for evaluating stereo image vision comfort level based on machine learning
  • Method for evaluating stereo image vision comfort level based on machine learning
  • Method for evaluating stereo image vision comfort level based on machine learning

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Embodiment Construction

[0073] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0074] A method for evaluating visual comfort of stereoscopic images based on machine learning proposed by the present invention, its overall realization block diagram is as follows figure 1 As shown, it includes the following steps:

[0075] ① Denote the left viewpoint image of the stereoscopic image to be evaluated as {I L (x, y)}, denote the right viewpoint image of the stereo image to be evaluated as {I R (x,y)}, denote the right disparity image of the stereo image to be evaluated as {d R (x,y)}, where (x,y) means {I L (x,y)}, {I R (x,y)} and {d R The coordinate position of the pixel point in (x, y)}, 1≤x≤W, 1≤y≤H, W means {I L (x,y)}, {I R (x,y)} and {d R The width of (x,y)}, H means {I L (x,y)}, {I R (x,y)} and {d R (x,y)} height, I L (x,y) means {I L The pixel value of the pixel whose coordinate position is (x, y) in (x, y)...

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Abstract

The invention discloses a method for evaluating a stereo image vision comfort level based on machine learning. According to the method, the important vision area mask of stereo images is extracted through the saliency map of a right viewpoint image and a right parallax image, a characteristic vector used for reflecting parallax range characteristics and parallax gradient characteristics and a characteristic vector used for reflecting space frequency characteristics are extracted through the important vision area mask, the characteristic vectors of the stereo images are obtained, training is carried out on all the stereo images in a stereo image set through support vector regression, and finally each stereo image in the stereo image set is tested through a support vector regression training model obtained in training to obtain the vision comfort level evaluation predicted value of each stereo image. The method has the advantages that the obtained characteristic vector information of the stereo images has strong stability and can reflect the vision comfort level changing conditions of the stereo images well, and therefore the correlation of objective evaluation conditions and subjective perception is effectively improved.

Description

technical field [0001] The invention relates to an image quality evaluation method, in particular to a machine learning-based method for evaluating visual comfort of stereoscopic images. Background technique [0002] With the rapid development of stereoscopic video display technology and high-quality stereoscopic video content acquisition technology, the quality of experience (QoE, quality of experience) of stereoscopic video is an important issue in the design of stereoscopic video systems, and visual comfort (VC, visual comfort) is an important factor affecting the QoE of stereoscopic video. At present, research on the quality evaluation of stereoscopic video / image mainly considers the influence of content distortion on image quality, but seldom considers the influence of factors such as visual comfort. Therefore, in order to improve the visual experience quality of viewers, it is very important to study the objective evaluation model of visual comfort of stereoscopic vid...

Claims

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Application Information

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IPC IPC(8): H04N17/00H04N13/00
Inventor 邵枫姜求平蒋刚毅郁梅李福翠彭宗举
Owner 湖州优研知识产权服务有限公司
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