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Proceedings Paper

Video authentication with self-recovery
Author(s): Mehmet U. Celik; Gaurav Sharma; A. Murat Tekalp; Eli S. Saber
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Paper Abstract

Digital video has become increasingly susceptible to spatio-temporal manipulations as a result of recent advances in video editing tools. In this paper, we propose a secure and flexible fragile digital video authentication watermark which also enables the self-recovery of video content after malicious manipulations. In the proposed block-based method, the watermark payload of a block is composed of two parts: authentication and recovery packets. The authentication packet is a digital signature with a special structure and carries the spatio-temporal position of the block. The digital signature guarantees the authenticity and integrity of the block as well as the recovery packet, whereas the localization information prevents possible cut & paste attacks. On the other hand, the recovery packet contains a highly compressed version of a spatio-temporally distant block. This information enables the recovery of the distant block, upon detection of tampering by its authentication packet. A spatio-temporal interleaving scheme and a simple multiple description coding mechanism increase the probability of self recovery by diffusing recovery information throughout the sequence. Finally, watermark payload is embedded by least significant bit modulation.

Paper Details

Date Published: 29 April 2002
PDF: 11 pages
Proc. SPIE 4675, Security and Watermarking of Multimedia Contents IV, (29 April 2002); doi: 10.1117/12.465311
Show Author Affiliations
Mehmet U. Celik, Univ. of Rochester (United States)
Gaurav Sharma, Xerox Corp. (United States)
A. Murat Tekalp, Univ. of Rochester (United States)
Eli S. Saber, Xerox Corp. (United States)

Published in SPIE Proceedings Vol. 4675:
Security and Watermarking of Multimedia Contents IV
Edward J. Delp III; Ping Wah Wong, Editor(s)

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