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Method for evaluating experience quality of video stream media service

A quality of experience and video streaming technology, applied in the field of streaming media, can solve problems such as inaccurate evaluation results, service quality of experience QoE does not take into account the impact of compression damage on network transmission, and achieve the effect of improving accuracy

Inactive Publication Date: 2016-03-23
ZHUHAI POWER SUPPLY BUREAU GUANGDONG POWER GIRD CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to solve the problem that the evaluation method of service quality of experience QoE in the prior art does not take into account the impact of compression damage and network transmission, resulting in inaccurate evaluation results

Method used

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  • Method for evaluating experience quality of video stream media service
  • Method for evaluating experience quality of video stream media service
  • Method for evaluating experience quality of video stream media service

Examples

Experimental program
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Embodiment 1

[0049] This embodiment provides a method for evaluating the quality of experience of a video streaming service. Such as figure 1 As shown, the method includes:

[0050] S101. Acquire a time complexity parameter of the original video stream, acquire an image display quality parameter of the compressed video stream, and add the time complexity parameter and the image display quality parameter to the compressed video data stream. The sub-steps in step S101 are specifically described as follows:

[0051] S1011. Obtain a time complexity parameter of the original video stream.

[0052] The time complexity parameter TI (TemporalperceptualInformation) is defined in the ITU-RBT.1788 protocol, and is used to indicate the degree of drastic change of the displayed content of the video stream. In the encoded video stream, the drastic change of the video display content will also affect the compression damage of the video image, so the time complexity parameter TI is also one of the para...

Embodiment 2

[0103] The establishment method of the QoE evaluation model of the video streaming media service provided in this embodiment is basically the same as the method in Embodiment 1, the difference is that in this embodiment, four specific video streams are evaluated using the evaluation method provided in Embodiment 1 The quality of experience was evaluated and compared with the evaluation results of real users. The method provided in this embodiment is specifically described as follows:

[0104] The four original video files are foreman sequence, hall sequence, mobile sequence and mother sequence. It is preferred to obtain the time complexity parameter TI of these four sequences, and the values ​​of the time complexity parameter TI of each sequence are shown in Table 1:

[0105] Table 1 The time complexity parameter TI of the original video sequence

[0106]

[0107] After obtaining the time complexity parameter TI, the four sequences are compressed and encoded. Preferably,...

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Abstract

The invention provides a method for evaluating experience quality of a video stream media service. The method comprises the steps of acquiring a time complexity parameter temporal perceptual information (TI) of an original video stream and an image display quality parameter of the compressed video stream; acquiring a bit rate adopted in compressing of the video stream; acquiring packet loss rate of the video stream that is transmitted through network and then is decompressed; and building an experience quality evaluation model by use of a neutral network, using the time complexity parameter TI, the image display quality parameter, the bit rate and the packet loss rate as input of the model, and outputting a mean opinion score (MOS) of the experience quality. According to the method, impact of compressed coding and network transmission on display quality of the video stream are taken into account comprehensively, the evaluation accuracy of the service experience quality evaluation model is improved, and the evaluation result is more approximate to practical experience results of users.

Description

technical field [0001] The invention relates to the technical field of streaming media, in particular to a method for evaluating the quality of experience of a video streaming service. Background technique [0002] In recent years, video streaming media applications based on network transmission have gradually been widely used. As a typical end-to-end service, the Quality of Experience (QoE) of the video streaming service has received more and more attention. The quality of experience (QoE) of the video streaming service refers to the comprehensive subjective experience of the user on the quality and performance (including effectiveness and usability) of the video streaming service. Through the quality of experience QoE score, the server can adjust some parameter configurations of the video service based on the user's comprehensive evaluation of the video service quality and performance, thereby optimizing the network. [0003] At present, in the prior art, there are rough...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/00H04L29/06H04L12/26
Inventor 黄远丰
Owner ZHUHAI POWER SUPPLY BUREAU GUANGDONG POWER GIRD CO
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