Stereoscopic video quality evaluation method based on motion significance

A technology for stereoscopic video and quality evaluation, applied in the field of image processing, can solve problems such as not being able to respond well to the movement of 3D scenes

Inactive Publication Date: 2017-06-20
TIANJIN UNIV
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Problems solved by technology

Although both methods take into account the impact of motion information in video on video quality evaluation, the calculation of motion information is based on an 8×8 local pixel area, and this calculation method based on a fixed-size square area cannot be very accurate. Good response to the movement of real objects in 3D scenes

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  • Stereoscopic video quality evaluation method based on motion significance

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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...

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Abstract

The invention provides a stereoscopic video quality evaluation method based on motion significance, and belongs to the field of image processing; and the method can be used to evaluate the stereoscopic video quality more accurately and effectively, and promote development of a stereoscopic imaging technology. Motion information corresponding to a tth image frame and an adjacent (t+1)th image frame of a left / right viewpoint of a reference stereoscopic video is estimated, and a motion significance weight distribution map of a frame image is obtained; a quality SSIM (Structural Similarity Index) of a 2d image quality evaluation method is used to evaluate a corresponding tth frame image of a left / right viewpoint of a distortion stereoscopic video; motion significance weight distribution is used to weight quality distribution of the corresponding frame, and further to obtain the integral quality of the frame of image; the quality of a single-frame stereoscopic image is obtained; and the quality average of stereoscopic images of all frames of the stereoscopic video is obtained, and further, the total quality of the stereoscopic video is obtained. The method is mainly applied to image processing.

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...

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Application Information

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IPC IPC(8): G06T7/00G06T7/246G06T7/215G06T7/13G06K9/62
CPCG06T7/0002G06T2207/10021G06T2207/30168G06F18/22
Inventor李素梅段志成丁学东常永莉
OwnerTIANJIN UNIV