Title :
An Efficient Low Bit-Rate Information Embedding Costa Based Scheme using a Perceptual Model
Author :
Delpha, Claude ; Touko, Brice Djeumou ; Zaidi, Abdellatif ; Duhamel, Pierre
Author_Institution :
Lab. Signaux et Syst., Supelec, Gif-sur-Yvette
Abstract :
In this paper, we propose an audio watermarking scheme based on the scalar Costa scheme specifically calibrated with a perceptual model allowing to increase the embedding power. For our study, this scheme is designed to be efficient for low bit-rate embedding with sufficient robustness to channel degradations. We present here the main characteristics of our scheme and the way for introducing perceptual models in such a Costa based watermarking scheme without introducing any noticeable artifacts. An evaluation of the robustness of the embedding system is also theoretically discussed by the way of the main channel attack : additive noise from low to high level. We illustrate its relevance in practice using Monte Carlo simulations.
Keywords :
Monte Carlo methods; audio coding; channel coding; watermarking; Monte Carlo simulations; additive noise; audio watermarking scheme; channel attack; channel degradations; information embedding Costa based scheme; perceptual model; scalar Costa scheme; AWGN; Additive noise; Additive white noise; Channel coding; Decoding; Degradation; Noise robustness; Power system modeling; Psychoacoustic models; Watermarking; Channel coding; Copyright protection; Digital Watermarking; Multimedia systems; Security;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2007. ICASSP 2007. IEEE International Conference on
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0727-3
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2007.366204