Upon the introduction a simplified distortion model for a Gaussian audio watermaking scenario, we derive a lower bound for the Gelfand-Pinsker capacity of the watermark channel. Then, we use the capacity bound for designing an efficient practical watermarking scheme based on dirty trellis codes. The proposed information-theoretic framework is then validated, through the use of experimentally acquired audio signals, with the use of a recently proposed frequency-domain audio watermarking. Both an "ideal" (reflection-free) Gaussian acoustic channel and a realistic multipath acoustic channel are considered
Abrardo, A., Barni, M., Andrea, G., Gianluigi, F. (2014). An information-theoretic analysis of dirty paper coding for informed audio watermarking. In 2014 Information Theory and Applications Workshop (ITA) (pp.40-45). IEEE Computer Society [10.1109/ITA.2014.6804212].
An information-theoretic analysis of dirty paper coding for informed audio watermarking
ABRARDO, ANDREA;BARNI, MAURO;
2014-01-01
Abstract
Upon the introduction a simplified distortion model for a Gaussian audio watermaking scenario, we derive a lower bound for the Gelfand-Pinsker capacity of the watermark channel. Then, we use the capacity bound for designing an efficient practical watermarking scheme based on dirty trellis codes. The proposed information-theoretic framework is then validated, through the use of experimentally acquired audio signals, with the use of a recently proposed frequency-domain audio watermarking. Both an "ideal" (reflection-free) Gaussian acoustic channel and a realistic multipath acoustic channel are consideredFile | Dimensione | Formato | |
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An_information-theoretic_analysis_of_dirty_paper_coding_for_informed_audio_watermarking.pdf
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https://hdl.handle.net/11365/922642