Asymmetrically informed data-hiding optimization of achievable rate for Laplacian host

J. E. Vila-Forcén; S. Voloshynovskiy; O. Koval; E. Topak; T. Pun

doi:10.1117/12.643242

17 February 2006 Asymmetrically informed data-hiding optimization of achievable rate for Laplacian host

J. E. Vila-Forcén, S. Voloshynovskiy, O. Koval, E. Topak, T. Pun

Proceedings Volume 6072, Security, Steganography, and Watermarking of Multimedia Contents VIII; 60721F (2006) https://doi.org/10.1117/12.643242
Event: Electronic Imaging 2006, 2006, San Jose, California, United States

Abstract

In data-hiding the issue of the achievable rate maximization is closely related to the problem of host interference cancellation. The optimal host interference cancellation relies on the knowledge of the host realization and the channel statistics (the additive white Gaussian noise (AWGN) variance) available at the encoder a priori to the transmission. The latter assumption can be rarely met in practical situations. Contrarily to the Costa set-up where the encoder is optimized for the particular state of the independent and identically distributed (i.i.d.) Gaussian attacking channel, we address the problem of asymmetrically informed data-hiding optimal encoder design assuming that the host interference probability density function (pdf) is an i.i.d. Laplacian and the channel variance lies on some known interval. The presented experimental results advocate the advantages of the developed embedding strategy.

Citation Download Citation

J. E. Vila-Forcén, S. Voloshynovskiy, O. Koval, E. Topak, and T. Pun "Asymmetrically informed data-hiding optimization of achievable rate for Laplacian host", Proc. SPIE 6072, Security, Steganography, and Watermarking of Multimedia Contents VIII, 60721F (17 February 2006); https://doi.org/10.1117/12.643242

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