Stereoscopic video quality assessment method based on motion saliency

A technology for stereoscopic video and quality evaluation, which is applied in the field of image processing and can solve the problem of not being able to reflect the movement of three-dimensional scenes well.

CN106875389BInactive Publication Date: 2020-06-30TIANJIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-06-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the field of image processing, and aims to evaluate the quality of stereoscopic video more accurately and effectively, and at the same time promote the development of stereoscopic imaging technology to a certain extent. In the present invention, based on the motion salience-based stereoscopic video quality evaluation method, firstly, the corresponding motion information is estimated from the tth frame and the t+1th frame of the two adjacent frames of the left or right viewpoint of the reference stereoscopic video, and the frame is obtained The motion saliency weight distribution map of the image; then use the 2D image quality evaluation method quality structure similarity SSIM to evaluate the corresponding t-th frame image of the left or right view of the distorted stereo video; then use the motion saliency weight obtained in the previous step The value distribution weights the quality distribution of the corresponding frame to obtain the overall quality of the frame image; then obtains the stereoscopic image quality of a single frame; finally averages the stereoscopic image quality of all frames of the stereoscopic video to obtain the overall quality of the stereoscopic video. The invention is mainly applied to image processing.
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Description

technical field

[0001] The invention belongs to the field of image processing, and relates to the improvement and optimization of a stereoscopic video quality evaluation method, in particular to the application of significant motion segmentation and structural similarity in the objective evaluation of stereoscopic video quality. Specifically, it involves a method of stereoscopic video quality assessment based on motion saliency. Background technique

[0002] With the development of 3D technology in recent years, stereoscopic video is gradually becoming the main medium of visual information dissemination. However, network transmission bandwidth resources are limited, which makes the compression of stereoscopic video an inevitable choice, and practice has proved that asymmetric compression of stereoscopic video can obtain higher compression efficiency. At the same time, compression will inevitably affect the quality of stereoscopic video, and the quality of stereoscopic video...

Examples

Embodiment Construction

[0060] The invention proposes a stereoscopic video quality evaluation method based on motion salience and binocular fusion. This method first divides the image into regions according to the motion saliency, and then assigns the corresponding saliency weights to the segmented regions according to the size of the motion salience; secondly, the SSIM image quality evaluation method is used to evaluate the segmented regions to obtain local quality, and then weight the local quality of the corresponding region with the weight of motion salience to obtain the global quality of a single frame image; finally, combine the binocular competition and binocular suppression phenomena in the human visual system to assign corresponding weights to the left and right viewpoints to obtain the stereoscopic video quality. objective quality.

[0061] Specific steps are as follows:

[0062] Firstly, the corresponding motion information is estimated from the two adjacent frames (frame t and frame t+1...