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Authentication of biomedical images based on zero location watermarking

Ho, Anthony T. S., Zhu, Xunzhan and Shen, Jun (2004) Authentication of biomedical images based on zero location watermarking In: ICARCV 2004 8th Control, Automation, Robotics and Vision Conference, 2004..

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Abstract

In this paper, a fragile watermarking method for authentication of biomedical images is proposed in the z-transform domain based on the zero locations. The z-transform is a convenient yet invaluable tool for representing, analyzing and designing discrete-time signals and system. Our watermarking method is designed by exploiting the sensitivity of the positions of z-transform zeros on the unit circle to any tampering made on the host image, such that the watermarking system can localize the portions of a watermarked image that have been tampered maliciously with high accuracy. Simulation results are presented to demonstrate the effectiveness and efficiency of the proposed scheme.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Additional Information: This article was published when Anthony T. S. Ho was at Nanyang Technological University, Singapore. ICARCV 2004 8th Control, Automation, Robotics and Vision Conference, Vol. 2, pp. 973- 976 .© 2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Divisions: Faculty of Engineering and Physical Sciences > Computing Science
Depositing User: Mr Adam Field
Date Deposited: 27 May 2010 14:46
Last Modified: 23 Sep 2013 18:35
URI: http://epubs.surrey.ac.uk/id/eprint/1935

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