Video quality evaluation method and device

A technology of video quality and evaluation method, applied in the Internet field, can solve the problems of not being able to accurately evaluate video quality, etc., and achieve the effect of accurate push

Inactive Publication Date: 2016-08-24
LETV HLDG BEIJING CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this is often not well applied in a global video website. Different channels (uploaders) have different followers due to different establishment times and focused content, so videos from different channels cannot be uploaded. Simply analyze the quality based on the information that comes with the video, so it is easy to fail to accurately evaluate the quality of the video
Therefore, the existing technical solutions cannot obtain a real and fair video quality analysis result in this case

Method used

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  • Video quality evaluation method and device
  • Video quality evaluation method and device

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Experimental program
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Embodiment 1

[0032] refer to figure 1 As shown in the flowchart, figure 1 A method for evaluating video quality is provided, the method comprising:

[0033] S01. Acquire video parameters, and extract actual quality evaluation parameters of the video from the video parameters.

[0034] Optionally, the video parameters in this embodiment specifically refer to the parameters of the video newly uploaded by the user of the video website under the channel created by the user, which can be one video or multiple videos, and the acquired video parameters can include the channel to which the video belongs , the actual number of playbacks, release time, etc. The release time refers to the period between the moment when the video is uploaded and released and the moment when the video parameters are obtained. In this embodiment, the actual evaluation parameter is the actual number of videos played within the selected publishing time.

[0035] S02. Obtain expected quality evaluation parameters of the...

Embodiment 2

[0042] According to Embodiment 1, on the basis of Embodiment 1, Embodiment 2 of the present invention provides a video quality evaluation method that also includes establishing a video quality evaluation model, such as Figure 2a Shown is the flow chart of establishing a video quality evaluation model, specifically:

[0043] S11. Obtain historical data of sample videos of at least one video channel;

[0044] For video websites, in addition to video resources provided by video website operators, another source of video is uploaded by users. Correspondingly, videos published on video websites have specific categories, and video channels can be a A category can also be a collection of videos created by users of a video website under a certain category based on the category. Therefore, each category corresponds to at least one video channel. Take the video website YouTube as an example. In the website, for example, there is Education, entertainment, film, sports and other categor...

Embodiment 3

[0109] Based on the foregoing embodiments, the video quality evaluation method provided in Embodiment 3 of the present invention further includes video recommendation. Specifically, after obtaining video quality evaluation parameters, video recommendation is performed according to the video quality evaluation parameters. Such as image 3 As shown, the video recommendation process for video recommendation according to the video quality evaluation parameters is:

[0110] S21. Setting a judgment threshold;

[0111] S22. Comparing the quality evaluation parameter of the video with the threshold;

[0112] S23. If the quality evaluation parameter of the video is greater than the threshold, recommend the video; otherwise, do not recommend the video.

[0113] The threshold is set according to the recommendation experience of the video recommendation system.

[0114] Through the solution of this embodiment, based on the threshold, when the quality evaluation parameter of the video i...

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Abstract

The embodiment of the invention relates to a video quality evaluation method and device. The method comprises following steps of obtaining video parameters; extracting actual quality evaluation parameters of a video from the video parameters; obtaining expected quality evaluation parameters of the video according to a video quality evaluation model and the video parameters; and obtaining the quality evaluation parameters of the video according to the actual quality evaluation parameters and the expected quality evaluation parameters. The device comprises a first obtaining unit, a first calculation unit and a second calculation unit. According to the method and the device, quality evaluation information of a channel is imported, time periods are divided finely, therefore the accurate quality analysis is carried out on video contents, and the video can be pushed accurately.

Description

technical field [0001] The embodiments of the present invention belong to the technical field of the Internet, and in particular relate to a video quality evaluation method and system. Background technique [0002] Video is the most basic element in a video recommendation system. All algorithms and processing procedures use video as the basic analysis point, and then assist other information (user viewing history, video features) to obtain the final recommendation results pushed to users. Therefore, how to obtain the quality information or quality measurement of a video is an extremely important link for the entire video recommendation system. [0003] Existing technical solutions are mainly based on the video quality evaluation based on the video's own information such as the number of video plays and the number of likes of the video. However, this is often not well applied in a global video website. Different channels (uploaders) have different followers due to different ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/04H04N21/442H04N21/475H04N21/482
CPCH04N17/04H04N21/44204H04N21/4756H04N21/4826
Inventor 李晔
Owner LETV HLDG BEIJING CO LTD
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