Fast informed embedding in dirty-paper trellis-code with orthogonal arcs
Proceedings of the 4th ACM international workshop on Contents protection and security
Expanding the class of watermark de-synchronization attacks
Proceedings of the 9th workshop on Multimedia & security
Image-Adaptive Spread Transform Dither Modulation Using Human Visual Model
Computational Intelligence and Security
Dither Modulation in the Logarithmic Domain
IWDW '07 Proceedings of the 6th International Workshop on Digital Watermarking
Generalized embedding of multiplicative watermarks
IEEE Transactions on Circuits and Systems for Video Technology
Robust and high capacity image watermarking based on jointly coding and embedding optimization
IH'07 Proceedings of the 9th international conference on Information hiding
Asymptotically optimum universal watermark embedding and detection in the high-SNR regime
IEEE Transactions on Information Theory
Trellis-coded rational dither modulation for digital watermarking
IWDW'05 Proceedings of the 4th international conference on Digital Watermarking
Watermarking security: a survey
Transactions on Data Hiding and Multimedia Security I
Dirty-Paper trellis-code watermarking with orthogonal arcs
PSIVT'06 Proceedings of the First Pacific Rim conference on Advances in Image and Video Technology
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A new dirty paper coding technique that is robust against the gain attack is presented. Such a robustness is obtained by adopting a set of (orthogonal) equi-energetic codewords and a correlation-based decoder. Due to the simple structure of orthogonal codes, we developed a simple yet powerful technique to embed the hidden message within the host signal. The proposed technique is an optimal one, in that the embedding distortion is minimized for a given robustness level, where robustness is measured through the maximum pairwise error probability in the presence of an additive Gaussian attack of given strength. The performance of the dirty coding algorithm is further improved by replacing orthogonal with quasi- orthogonal codes, namely, Gold sequences, and by concatenating them with an outer turbo code. To this aim, the inner decoder is modified to produce a soft estimate of the embedded message. Performance analysis is carried out by means of extensive simulations proving the validity of the novel watermarking scheme.