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Proceedings Paper

Maximum-likelihood sequence decoding of digital image watermarking
Author(s): George F. Elmasry; Yun-Qing Shi
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Paper Abstract

This paper explores possible methods to detect the watermark signal. We show how using sequence detection techniques, such as maximum likelihood sequence detection (MLSD), can provide the same performance as conventionally used correlation detection while simplifying the detection process. As a result, we can increase the dimension of the watermark signal (achieving higher capability), and keep the increase in computational complexity manageable. We will also show that with MLSD, we can have a measure of confidence level of the detected signal that is directly dependent on the watermark signal to noise ratio (SNRwm).

Paper Details

Date Published: 9 April 1999
PDF: 12 pages
Proc. SPIE 3657, Security and Watermarking of Multimedia Contents, (9 April 1999); doi: 10.1117/12.344693
Show Author Affiliations
George F. Elmasry, New Jersey Institute of Technology (United States)
Yun-Qing Shi, New Jersey Institute of Technology (United States)


Published in SPIE Proceedings Vol. 3657:
Security and Watermarking of Multimedia Contents
Ping Wah Wong; Edward J. Delp, Editor(s)

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