Dirty-paper writing based on LDPC codes for data hiding

Authors:
Çagatay Dikici;Khalid Idrissi;Atilla Baskurt
Affiliations:
Laboratoire d'InfoRmatique en Images et Systèmes d'information, LIRIS, UMR 5205 CNRS, INSA de Lyon, France;Laboratoire d'InfoRmatique en Images et Systèmes d'information, LIRIS, UMR 5205 CNRS, INSA de Lyon, France;Laboratoire d'InfoRmatique en Images et Systèmes d'information, LIRIS, UMR 5205 CNRS, INSA de Lyon, France
Venue:
MRCS'06 Proceedings of the 2006 international conference on Multimedia Content Representation, Classification and Security
Year:
2006

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Abstract

We describe a new binning technic for informed data hiding problem. In information theoretical point of view, the blind watermarking problem can be seen as transmitting a secret message M through a noisy channel on top of an interfered host signal S that is available only at the encoder. We propose an embedding scheme based on Low Density Parity Check(LDPC) codes, in order to quantize the host signal in an intelligent manner so that the decoder can extract the hidden message with a high probability. A mixture of erasure and symmetric error channel is realized for the analysis of the proposed method.