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Article type: Research Article
Authors: Yamada, Takaakia; * | Takahashi, Yoshiyasua | Fujii, Yasuhiroa | Ebisawa, Ryua | Yoshiura, Hiroshib | Echizen, Isaoc
Affiliations: [a] Systems Development Laboratory, Hitachi, Ltd., 292, Yoshida-cho, Totsuka-ku, Yokohama, 244-0817, Japan | [b] Faculty of Electro-Communication, The University of Electro-Communications, 1-5-1, Chofugaoka, Chofu, 182-8585, Japan | [c] National Institute of Informatics, 2-1-2, Hitotsubashi, Chiyoda-ku, Tokyo, 101-8430, Japan
Correspondence: [*] Corresponding author. Tel.: +81 45 860 1664; Fax: +81 45 860 1674; E-mail: takaaki.yamada.tr@hitachi.com
Abstract: 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.
Keywords: Integrity verification, video watermarking, attack identification
DOI: 10.3233/KES-2009-0181
Journal: International Journal of Knowledge-based and Intelligent Engineering Systems, vol. 13, no. 3-4, pp. 141-153, 2009
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