- 专利标题： Method and device for sending and receiving digital images using an image watermark for decoding
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申请号： US10029673申请日： 2001-12-31
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公开(公告)号： US07013023B2公开(公告)日： 2006-03-14
- 发明人: Frédérique Ehrmann Patin , Ioana Donescu
- 申请人： Frédérique Ehrmann Patin , Ioana Donescu
- 申请人地址： JP Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JP Tokyo
- 代理机构： Fitzpatrick, Cella, Harper & Scinto
- 优先权： FR0100676 20010118
- 主分类号： G06K9/00
- IPC分类号： G06K9/00 ; H04L9/00
摘要：
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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