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 (D 1,D 2) 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.
This work was supported in part by the Natural Sciences and Engineering Research Council of Canada under Grants RGPIN203035-98 and RGPIN203035-02 and under Collaborative Research and Development Grant, by the Communications and Information Technology Ontario, by the Premier’s Research Excellence Award, by the Canadian Foundation for Innovation, by the Ontario Distinguished Researcher Award, and by the Canada Research Chairs Program.
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Sun, W., Yang, Eh. (2004). On Achievable Regions of Public Multiple-Access Gaussian Watermarking Systems. In: Fridrich, J. (eds) Information Hiding. IH 2004. Lecture Notes in Computer Science, vol 3200. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-30114-1_4
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DOI: https://doi.org/10.1007/978-3-540-30114-1_4
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