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Video quality automatic evaluation system oriented to wireless network and evaluation method thereof

A technology of video quality and wireless network, applied in the evaluation field of video quality automatic evaluation system, can solve the problem of scarcity of video quality automatic evaluation research

Inactive Publication Date: 2010-01-20
XIAMEN UNIV +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Therefore, research on automatic video quality evaluation for wireless transmission applications is scarce

Method used

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  • Video quality automatic evaluation system oriented to wireless network and evaluation method thereof
  • Video quality automatic evaluation system oriented to wireless network and evaluation method thereof
  • Video quality automatic evaluation system oriented to wireless network and evaluation method thereof

Examples

Experimental program
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Embodiment Construction

[0089] The following examples will further illustrate the present invention.

[0090] First, import the reference video file (denoted as SRC) into the evaluation system through the input terminal of the source acquisition device (download line of PC); secondly, pass the reference video through the degradation simulation and simulation device to obtain the required video degradation file (recorded as HRC); on the basis of the above two steps, then SRC and HRC can be sent into the video quality automatic evaluation device for quality evaluation.

[0091] The specific implementation technology of the automatic evaluation device for video quality will be further described below.

[0092] (1) Content pre-detection

[0093] The time-domain activity of the SRC (denoted as SrcTi) is calculated according to the time-domain activity detection formula in the summary of the invention, and the time-domain activity is partitioned according to the principle of information maximum entropy. ...

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Abstract

The invention relates to a video quality automatic evaluation method and an evaluation method, relating to the evaluation of wireless video communication, which can confirm the evaluation property, reduce needed reference data and reduce calculation complexity, therefore, the evaluation mode is adaptive to the evaluation application facing wireless network. The method comprises: processing content pre-check on the reference video not compressed; according to the average activity of each activity region, dividing the check on the video characters into high and low activity region character checks, to attain the check parameters representing the spatial domain and time domain characters which express the characters of the video sections in each activity region; weighting the check parameters of the spatial domain and time domain characters of each activity region to build the spatial domain and time domain character parameters of the whole video, realizing the projection between the check parameters and the subjective quality expression according to a preset video quality evaluation database, to realize the automatic evaluation on the video quality facing wireless network.

Description

technical field [0001] The invention relates to an evaluation of wireless video communication, in particular to an evaluation method of a wireless network-oriented video quality automatic evaluation system. Background technique [0002] The overall development trend of the communication network is: "Broadband", "Wireless" and "Mobilization". With the development of broadband wireless communication technology and the popularization of Internet services, the business forms carried by wireless networks are also becoming more and more abundant, showing the development trend of "multimedia", "entertainment" and "personalization". In the next few years, voice (or small traffic data)-based business forms on traditional telecom networks will be gradually replaced by video-based multimedia services. People will no longer be satisfied with transmitting text and voice through wireless networks, but also hope to see pictures and scenes of life through wireless networks, such as mobile ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N17/00G06T7/00
Inventor 袁飞黄联芬姚彦张远见
Owner XIAMEN UNIV
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