Method and device for sending and receiving digital images...

Image analysis – Applications

Reexamination Certificate

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C713S176000

Reexamination Certificate

active

07013023

ABSTRACT:
In order to decode a received digital signal which has been watermarked with a known watermark, at least part of the digital signal is decoded by using a parametrisable iterative decoder, the watermark is extracted from the decoded signal, the extracted watermark is compared with the known watermark, and at least one parameter of the decoder is modified if necessary, according to the result of the comparison.

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patent: 6711710 (2004-03-01), Jiang et al.
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patent: 1 009 098 (2000-06-01), None
patent: 1 043 687 (2000-10-01), None
patent: WO 00/22605 (2000-04-01), None
“Multimedia Data-Embedding And Watermarking Technologies”, M. Swanson, et al., Proceeding of the IEEE, vol. 86, No. 6, Jun. 1998, pps. 1064-1087.
“Codes for Channels with Insertions, Deletions and Substitutions”, E. Ratzer, et al., 2ndInternational Symposium on Turbo Codes & Related Topics, Brest, France, 2000, pps. 149-156.
“Effective Channel Coding for DCT Watermarks”, S. Pereira, et al., University of Geneva, three (3) pps.
“Near Shannon Limit Error—Correcting Coding and Decoding: Turbo-Codes (1)”, C. Berrou, et al., Proceedings of the International Conference on Communications (ICC), Geneva, May 23-26, 1993, pps. 1064-1070.
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