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Assessment method and device for video quality

A video quality and video technology, applied in the field of communication, can solve the problems of limited algorithm use conditions, inability to truly reflect the degree of video distortion, and inability to obtain video content information.

Active Publication Date: 2013-10-30
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another issue that needs to be considered is that it is impossible to obtain any video content information in the case of video encryption
When the existing technology does not use the frame boundary information, the packet loss rate is used for calculation, which cannot truly reflect the degree of video distortion. In addition, the algorithm usage conditions are subject to many restrictions

Method used

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  • Assessment method and device for video quality
  • Assessment method and device for video quality
  • Assessment method and device for video quality

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Embodiment Construction

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. It should be understood that the described embodiments are only some of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0043] In the case of not using the frame boundary information, the current existing algorithms usually use the packet loss rate for calculation, but the packet loss rate cannot reflect the actual degree of video distortion. For example, if two consecutive data packets are lost at the same time or two data packets at a very close distance, from a subjective point of view, the damage degree of the video frame is the same, ...

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Abstract

Disclosed is a video quality evaluation method, which comprises: obtaining parameter information about video data, the parameter information comprising a code rate, a frame rate and data packet information; according to the code rate or the frame rate, calculating the video reference quality of the video data; according to the data packet information, calculating the number of continuously lost data packets, and according to the number of continuously lost data packets and a first data packet threshold, calculating the number of times of effective packet loss; according to the number of times of effective packet loss, calculating the video packet loss distortion quality of the video data; and according to the video reference quality and the video packet loss distortion quality, calculating the final video quality. The number of times of effective packet loss can be applied to accurately evaluate a video more effectively, and the algorithm complexity is low. Also disclosed is a video quality evaluation device.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a video quality evaluation method and device. Background technique [0002] In the context of the rapid development of network media, services such as video on demand, Internet TV, and videophone have become the main services of broadband networks and wireless networks. Operators need to monitor the quality of transmitted video services and take corresponding measures to adjust them in time. Guarantee user experience requirements for media services. The quality of network media is affected by many complex factors, including: the quality of service of the transmission channel (such as bandwidth, packet loss, delay, jitter, etc.) , anti-error strength, codec end buffer control strategy is appropriate, etc.). In addition to media data loss caused by channel packet loss and encoding methods, which lead to a decline in the subjective quality of the media, media pauses ...

Claims

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Application Information

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IPC IPC(8): H04N17/02H04N7/64H04N19/89
CPCH04N17/02H04N7/64H04N19/89H04L43/0835H04N17/00
Inventor 高山孙李娜谢清鹏
Owner HUAWEI TECH CO LTD
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