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Proceedings Paper

Reduced embedding complexity using BP message passing for LDGM codes
Author(s): Peter Günther; Dagmar Schönfeld; Antje Winkler
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Paper 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.

Paper Details

Date Published: 18 March 2008
PDF: 10 pages
Proc. SPIE 6819, Security, Forensics, Steganography, and Watermarking of Multimedia Contents X, 681919 (18 March 2008); doi: 10.1117/12.766649
Show Author Affiliations
Peter Günther, Technische Univ. Dresden (Germany)
Dagmar Schönfeld, Technische Univ. Dresden (Germany)
Antje Winkler, Technische Univ. Dresden (Germany)

Published in SPIE Proceedings Vol. 6819:
Security, Forensics, Steganography, and Watermarking of Multimedia Contents X
Edward J. Delp III; Ping Wah Wong; Jana Dittmann; Nasir D. Memon, Editor(s)

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