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Integrity verification method for video content using robust watermarking

2009; IOS Press; Volume: 13; Issue: 3-4 Linguagem: Inglês

10.3233/kes-2009-0181

1875-8827

Takaaki Yamada, Yoshiyasu Takahashi, Yasuhiro Fujii, Ryu Ebisawa, Hiroshi Yoshiura, Isao Echizen,

Digital Media Forensic Detection

A method is described for verifying video content integrity by checking the continuity of timecodes embedded as digital watermarks. Conventional verification methods using digital signatures and fragile watermarking are unable to distinguish between attacks and regular modifications and thus are unable to protect against threats to content. The proposed verification method distinguishes attacks against video content from regular modifications by detecting timecodes embedded in consecutive frames of the content and then checking their continuity. A prototype implementation showed that the method is more effective than conventional ones and that it can be used by a variety of applications using video content.