Audio and video matching zero watermark generation method and audio and video tamper-proofing detection method

Abstract

The invention discloses an audio and video matching zero watermark generation method and an audio and video tamper-proofing detection method. When the zero watermark is generated, the audio and videoare segmented and matched by taking time as a unit, and the generated zero watermark not only carries video features, but also carries sound features of corresponding audios; the video features are feature matrixes constructed after key frame images of each video segment are processed; when the sound features are generated, the influence of the silent segment is fully considered, and the voiced segment and the silent segment generate different sound watermarks; and performing exclusive-OR operation on the video features and the sound watermarks to obtain audio and video matching zero watermarks, and sending the audio and video matching zero watermarks to a third-party copyright authentication mechanism for registration and storage. The zero watermark generated by the method provided by theinvention can be used for audio and video tamper-proofing detection and self copyright verification, and the matching proof of the video and the corresponding audio is realized. When any one of the audio and video to be verified is tampered, the zero watermark generated by the method can effectively prove that the audio and video to be verified is tampered.

Description

technical field [0001] The invention relates to an audio and video matching zero watermark generation method and an audio and video anti-tampering detection method. Background technique [0002] Due to the development of electronic technology, Internet and multimedia technology, various multimedia files are widely disseminated (such as audio, video, etc.), and everyone can share and download other people's audio and video by means of the Internet. [0003] However, with the wide application of various audio and video editing software, people will perform various edits on audio and video for certain purposes, such as replacing and cutting the audio corresponding to the video or replacing and cutting the video picture. Wait. [0004] Audio and video that have been edited and tampered with are disseminated through the Internet, which can easily mislead people who watch the video. [0005] If the tampering of audio and video is just for entertainment, it will not cause any imp...

AI Technical Summary

Problems solved by technology

[0012] ① Changes are made to the video content, that is, the pixel value. If the algorithm is not properly selected, the video quality will be reduced, so the relationship between robustness and invisibility needs to be measured;

[0013] ② Due to the video image's requirement for the invisibility of the watermark, there are also restrictions on the amount and strength of embedded data

[0017] Although the above audio and video cross watermarking scheme involves audio and video, this scheme does not consider whether the audio and video match, that is, if the audio or video is maliciously replaced, the audio and video cross watermarking scheme cannot detect

[0018] In addition, since the audio and video cross-watermarking scheme also adopts the actual embedding method, its disadvantages are the same as those of the above-mentioned scheme 1.

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