Video copying detection method based on robust hash

A technology for video copy detection and video, applied in the field of video and multimedia signal processing, can solve problems such as inability to guarantee the robustness of hash values, inability to describe color space distribution, incomplete feature description, etc. Compact and robust effect
CN102393900AInactive Publication Date: 2012-03-28SHANDONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANDONG UNIV
Publication Date
2012-03-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a video copying detection method based on robust hash. The advantages of spatial-temporal union information and a sequence characteristic in the aspect of reflecting video contents are used fully. The method comprises the following steps of: firstly, dividing a video frame into parts which are overlapped with one another in 50 percent and generating a time domain information representative image by using the video frame of each part; secondly, filling the time domain information representative images by using a hilbert curve to further calculate a gray scale three-meanvalue of each block on the hilbert curve, and generating a hash fingerprint by comparing the three-mean values; and finally, performing hash matching according to the obtained hash fingerprint and judging whether the video is a copied video. An experimental result shows that the robustness and the discrimination of an extracted characteristic are greatly improved and developed.
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Description

technical field

[0001] The invention relates to a robust hash-based video copy detection method, which belongs to the technical field of video and multimedia signal processing. Background technique

[0002] With the continuous development of multimedia technology, a large amount of video information emerges, and people can conveniently use devices in their hands to shoot videos and edit digital videos. As a result, hundreds of videos are created every day on the Internet, and pirated videos are also multiplying, which greatly infringes the interests of copyright owners. In multimedia copyright protection, the copyright discriminator needs to quickly and effectively detect possible copies from a large amount of multimedia data and determine the ownership of the content. Currently in the network environment, content-based video copy detection has become a research hotspot in multimedia technology.

[0003] In recent years, video copy detection technology has made great progr...

Claims

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