Integrity verification method for video content using robust watermarking

Article type: Research Article

Authors: Yamada, Takaaki^{a; *} | Takahashi, Yoshiyasu^a | Fujii, Yasuhiro^a | Ebisawa, Ryu^a | Yoshiura, Hiroshi^b | Echizen, Isao^c

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: [email protected]

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