Method for evaluating video quality

A technology of video quality and evaluation method, applied in the direction of television, electrical components, image communication, etc., can solve the problems of immaturity and less research on video evaluation system, and achieve the effect of good consistency

CN105100789AActive Publication Date: 2015-11-25TIANJIN UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-11-25

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Abstract

The invention relates to a method for evaluating video quality. The method includes a first step of subjectively evaluating the video quality in nine scoring level, calculating average subjective scores of each scene among a plurality of video scenes, and finishing subjective evaluation of video quality to obtain a subjectively evaluating result; a second step of carrying out objective evaluating pretreatment on video quality, including peak value signal-to-noise ratio processing, edge structure similarity processing, sharpness processing and spatial-time domain value processing; a third step of objectively evaluating the video quality to obtain an objective evaluating result; and a fourth step of comprehensively evaluating the video quality. In the fourth step, subjective evaluating result and the objective evaluating result are combined to obtain a comprehensive result through comprehensive calculation. The accuracy of the video evaluation result is effectively improved, and high-efficient evaluation is realized.
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Description

technical field

[0001] The present invention is a video quality evaluation method applied to mobile terminals. It is mainly aimed at analyzing the video of the tablet computer of the Android system. The video quality evaluation method is used to perform subjective evaluation and objective evaluation of the video, and efficiently evaluate the video quality, so that the video quality can be controlled. And improve the quality of digital video, better provide guidance for mobile terminal manufacturers. Background technique

[0002] Nowadays, in the development of video from analog to digital, various differences will occur in the process of video sampling, compression, transmission and reconstruction, which will cause different degrees of video distortion. At present, most evaluations of video quality are carried out based on PCs, but there are relatively few research fields based on mobile terminals. How to efficiently evaluate video quality based on mobile terminals is the fo...

Examples

Embodiment Construction

[0033] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0034] The specific implementation process can be as follows: firstly build based on the Android development environment, make a video player based on Androidyuv by calling the SDL third-party library, design and implement the evaluation system, design the interface for subjective evaluation of video quality, including user login system and real-time update of the database , The scene selection interface is autonomous and random, the video playback interface, and the scoring function are limited. The objective evaluation only allows administrators to log in, so the administrator identity authentication is set up, and the administrator information needs to be verified. When it matches the information in the database, it will enter the objective evaluation system, otherwise it cannot be entered. Administrators can view the data of subjective evaluation, perform...