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Media content similarity detection method and device

A technology of media content and detection method, applied in the field of network information, can solve the problems of reducing detection efficiency and large amount of calculation, and achieve the effects of improving detection efficiency, reducing complexity, and reducing amount of calculation and storage.

Pending Publication Date: 2021-11-05
ALIPAY (HANGZHOU) INFORMATION TECH CO LTD +1
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Problems solved by technology

This method has a large amount of calculation and reduces the detection efficiency

Method used

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  • Media content similarity detection method and device
  • Media content similarity detection method and device
  • Media content similarity detection method and device

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Embodiment Construction

[0052] As mentioned earlier, existing techniques detect the similarity between two media contents based on all uniform frames sampled. For example, if the target media content is a piece of video, in the prior art, the target video is uniformly sampled, usually every 1 second, the video length is 300 seconds, and 300 uniform frames are sampled. At the same time, the reference video is also uniformly sampled, for example, 300 uniform frames are also sampled, and then, according to the similarity between all uniform frames of the two videos, it is determined whether the target video is similar to the reference video.

[0053] It can be seen that when all the uniform frames sampled are used for detection, because sampling is required every short time, a large number of data frames will be sampled, and subsequent similarity calculations are based on this large number of frames. data frame for computation. With the massive growth of media content in the network (for example, a tar...

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Abstract

The embodiment of the invention provides a media content similarity detection method and device. The method and the device can be applied to copyright protection in a block chain technology. The method comprises the following steps: sampling target media content to obtain basic frame data; determining each key frame in target media content according to the basic frame data; determining reference media content; obtaining each key frame in the predetermined reference media content; for each key frame of the target media content, calculating the inter-frame similarity between the key frame and each key frame in the reference media content; and determining the overall similarity between the target media content and the reference media content according to the calculated inter-frame similarity. According to the method, the calculation amount and the storage amount are reduced, and meanwhile, the detection accuracy is also improved.

Description

technical field [0001] One or more embodiments of this specification relate to network information technology, and in particular to a method and device for detecting similarity of media content. Background technique [0002] With the development of network technology, various media contents such as video, audio, text, etc. are widely disseminated on the network. In many application scenarios, it is necessary to detect the similarity between two media contents. For example, it is necessary to protect the copyright of a movie video, so it is necessary to compare a target video spread on a website with the movie video to detect the similarity between the two, so as to judge whether the target video is infringing. [0003] Currently, the similarity between two media contents is mainly detected based on all uniform frames sampled. This method requires a large amount of calculation and reduces the detection efficiency. Contents of the invention [0004] One or more embodiment...

Claims

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Application Information

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IPC IPC(8): G06F16/483G06F16/45G06K9/62
CPCG06F16/483G06F16/45G06F18/22
Inventor 蒋晨黄凯明何思枫杨旭东张伟张晓博程远徐富荣王清潘覃
Owner ALIPAY (HANGZHOU) INFORMATION TECH CO LTD
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