On achievable regions of public multiple-access gaussian watermarking systems

Authors:
Wei Sun;En-hui Yang
Affiliations:
Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, Ontario, Canada;Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, Ontario, Canada
Venue:
IH'04 Proceedings of the 6th international conference on Information Hiding
Year:
2004

Citing 10
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Abstract

A public multiple-access digital watermarking system is studied, in which two correlated Gaussian covertexts are watermarked independently and then sent to one authorized receiver via memoryless Gaussian attack channels. Given two distortion level pairs (D1,D2) and (D′1,D′2) with respect to the average squared error distortion measure, an achievable region is given in single-letter information quantities. An example is also utilized to illustrate the gain of correlated sources over uncorrelated sources.