Short video background music quality objective evaluation method

An objective quality evaluation and short video technology, which is applied in the direction of TV, electrical components, selective content distribution, etc., can solve the problems of lack of evaluation standards, long video quality cannot be directly applied to short video, etc.

Active Publication Date: 2020-03-27
央视国际网络无锡有限公司
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Problems solved by technology

Traditional video quality evaluation methods for long videos cannot be directly applied to the field of short videos;
[0006] 2) Th...

Method used

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  • Short video background music quality objective evaluation method
  • Short video background music quality objective evaluation method
  • Short video background music quality objective evaluation method

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Experimental program
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Embodiment

[0077] Such as figure 1 As shown, a short video soundtrack quality objective evaluation method, the method includes the following steps:

[0078] (1) Calculation of global matching degree of video soundtrack:

[0079] That is, the matching relationship between the overall motion degree of the video and the rhythm of the background music is calculated. The core idea is that if the motion of the video is high, the rhythm of the soundtrack should also be fast; if the motion of the video is slow, or even still, the rhythm of the soundtrack should be relatively slow. The degree of motion of the video is represented by the video time complexity, and the rhythm of the music is represented by the number of global beats of the music.

[0080] (2) Calculation of local matching degree of video soundtrack:

[0081] Partial matching degree is a fine-grained measurement method. It examines the degree of matching between the distribution of video motion in time and the distribution of ba...

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Abstract

The invention relates to a short video background music quality objective evaluation method. The method comprises the following steps: (1) calculating the global matching degree of the video background music; (2) calculating the local matching degree of video background music; and (3) video music score quality calculation. The method has the advantages that an objective calculation method is provided for the gameplay quality evaluation of the short video from the perspective of the rhythm matching degree of the short video and the background music, and a traditional subjective evaluation method based on manual evaluation can be replaced.

Description

technical field [0001] The invention relates to a method for objectively evaluating the quality of soundtracks for short videos, and belongs to the technical field of computer multimedia (image and video) information processing. Background technique [0002] Short videos generally refer to short video clips that are spread on the Internet and are less than 5 minutes in length. In recent years, with the rapid development of mobile Internet technology and the popularity of large-screen smartphones, the short video industry has sprung up. According to the "44th Statistical Report on Internet Development in China" released by CNNIC (China Internet Network Information Center) in August 2019, as of June 2019, the number of short video users in my country was 648 million, accounting for 75.8% of the total Internet users. Short video is not a fragmented version of long video, it is a brand new product. Compared with traditional videos, short videos have the characteristics of shor...

Claims

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Application Information

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IPC IPC(8): H04N17/00H04N21/439H04N21/44H04N21/475
CPCH04N17/004H04N21/4394H04N21/44008H04N21/4756
Inventor 董培祥朱立松
Owner 央视国际网络无锡有限公司
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