Method and device for assessing multimedia quality

Abstract

The invention discloses a method and device for assessing multimedia quality. The method comprises the step of obtaining benchmark quality and ultimate quality of a video of a multimedia sequence and benchmark quality and ultimate quality of of an audio of the multimedia sequence, the step of determining the benchmark quality of the multimedia sequence based on the benchmark quality of the video and the benchmark quality of the audio, the step of determining a distortion value of the multimedia sequence according to the benchmark quality of the video, the ultimate quality of the video, the benchmark quality of the audio and the ultimate quality of the audio, and the step of determining the multimedia quality of the multimedia sequence according to the benchmark quality of the multimedia sequence and the distortion value of the multimedia sequence. The method and device for assessing the multimedia quality can directly reflect the distortion of the multimedia sequence, conforms to the subjective feeling of people, and then can accurately and effectively assess the multimedia quality.

Description

technical field [0001] The present invention relates to the field of multimedia, and more particularly, to methods and devices for evaluating multimedia quality. Background technique [0002] With the development of network technology and the arrival of a new era of multimedia, video-on-demand, Internet TV, videophone, etc. have become the main services of broadband networks, and these services will also become the core of the third generation (3G, the 3rd Generation) wireless network. Main business. Various multimedia processing and communication technologies emerge in an endless stream. Due to the large amount of multimedia business data, high real-time requirements, and strong user sensitivity, multimedia quality assessment is of great significance to multimedia communication equipment manufacturers and operators. If equipment manufacturers can provide convincing multimedia quality evaluation results of the system, it will greatly promote the sales of their products; for...

AI Technical Summary

Problems solved by technology

[0005] When there is no packet loss in the network, both audio and video have a relatively stable benchmark quality, and people’s perception of multimedia quality is directly combined with the benchmark quality of audio and video; however, when there is packet loss, people will feel the original stable quality There is a sudden quality drop in multimedia quality, that is, the distortion of the multimedia sequence due to packet loss, instead of doing separate evaluations of video and audio in case of packet loss and then jointly

Existing multimedia quality assessment methods cannot directly reflect the impact of packet loss on multimedia sequences and the distortion of multimedia sequences, which do not conform to human subjective feelings

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