Reduced embedding complexity using BP message passing for LDGM codes

Peter Günther; Dagmar Schönfeld; Antje Winkler

doi:10.1117/12.766649

18 March 2008 Reduced embedding complexity using BP message passing for LDGM codes

Peter Günther, Dagmar Schönfeld, Antje Winkler

Proceedings Volume 6819, Security, Forensics, Steganography, and Watermarking of Multimedia Contents X; 681919 (2008) https://doi.org/10.1117/12.766649
Event: Electronic Imaging, 2008, San Jose, California, United States

Abstract

The application of Low-Density Generator Matrix (LDGM) Codes combined with Survey Propagation (SP) in steganography seems to be advantageous, since it is possible to approximate the coset leader directly. Thus, large codeword length can be applied, resulting in an embedding efficiency close to the theoretical upper bound of embedding efficiency. Since this approach is still quite complex, this paper deals with the application of Belief Propagation (BP) to LDGM Codes used to reduce the complexity of embedding while keeping the embedding efficiency constant.

Citation Download Citation

Peter Günther, Dagmar Schönfeld, and Antje Winkler "Reduced embedding complexity using BP message passing for LDGM codes", Proc. SPIE 6819, Security, Forensics, Steganography, and Watermarking of Multimedia Contents X, 681919 (18 March 2008); https://doi.org/10.1117/12.766649

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