Stereoscopic image objective quality evaluation method based on physiological and psychological stereoscopic vision

Abstract

The invention belongs to the field of image process, and provides a quality evaluation method capable of comprehensively considering physiological and psychological stereoscopic vision clues, and can effectively realize objective quality evaluation on a stereoscopic image. According to the technical scheme of the invention, a stereoscopic image objective quality evaluation method based on physiological and psychological stereoscopic vision comprises the following steps of: a first step of calculating absolute difference of a left view and a right view; a second step of converting the absolute difference into a grey-scale image which is taken as a characteristic parameter capable of representing the quality of a stereoscopic image; a third step of carrying out K-means cluster segmentation on a converted grey-scale image; a fourth step of differentially treating by distributing different weights for different class diagrams; a fifth step of calculating a WMSSIM value between a class diagram of the original stereoscopic image and a class diagram of a distortion stereoscopic image; and a sixth step of finally obtaining stereoscopic image quality evaluation index 3DM. The method is mainly applied to stereoscopic image objective quality evaluation.

Description

technical field [0001] The invention belongs to the field of image processing, in particular to an objective quality evaluation system for stereoscopic images, in particular to an objective quality evaluation method for stereoscopic images based on physiological and psychological stereoscopic vision. Background technique [0002] At present, the quality evaluation methods of digital plane images can be divided into two categories: subjective evaluation and objective evaluation. The subjective quality evaluation process needs to select a large number of observers, and each observer has to conduct a large number of repeated experiments on multiple test images, which is time-consuming and expensive, and is susceptible to the complexity and differences of the individual psychological and physiological changes of the testees. Influence, the operation is difficult and cannot achieve real-time performance. Therefore, how to establish an objective quality evaluation method consiste...

AI Technical Summary

Problems solved by technology

However, most of them are aimed at planar images and do not involve the objective quality evaluation of stereoscopic visual information

When evaluating stereoscopic information, these visual models cannot be fully applied; stereoscopic images are different from planar images, and there is a high degree of correlation between adjacent viewpoints of stereoscopic images

If the image quality of two adjacent viewpoints is high, but the parallax between the viewpoints is small, the stereoscopic effect of the image perceived by the observer will be reduced

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