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Communication Dans Un Congrès Année : 2008

On the tradeoff between security and robustness of the Trellis Coded Quantization scheme

Sofiane Braci
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Remy Boyer
Claude Delpha

Résumé

The steganographic security in the Cachin's work is defined as the statistical invisibility between the host signal and its marked version. At contrary, the robustness to an attack is not a prime goal. In robust watermarking, this is exactly the inverse. The scalar costa scheme (SCS) is a typical example of this fact. Indeed, this scheme is robust to additive white Gaussian noise (AWGN) attack but is drastically insecure since its probability density function for Gaussian host signal is severely discontinuous. An improved scheme has been proposed by Guillon et al. which increases the security to the detriment of the robustness. In this paper, we propose a new watermarking scheme, based on the combination of the spread transform (ST) and the trellis coded quantization (TCQ) which is secure and robust to AWGN attack.

Dates et versions

hal-00871165 , version 1 (09-10-2013)

Identifiants

Citer

Sofiane Braci, Remy Boyer, Claude Delpha. On the tradeoff between security and robustness of the Trellis Coded Quantization scheme. ICASSP 2008 - 33th IEEE International Conference on Acoustics, Speech and Signal Processing, Mar 2008, Las Vegas, Nevada, United States. pp.1733 - 1736, ⟨10.1109/ICASSP.2008.4517964⟩. ⟨hal-00871165⟩
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