- 专利标题: Applying informed coding, informed embedding and perceptual shaping to design a robust, high-capacity watermark
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申请号: US10115999申请日: 2002-04-04
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公开(公告)号: US06996249B2公开(公告)日: 2006-02-07
- 发明人: Matthew L. Miller , Ingemar J. Cox
- 申请人: Matthew L. Miller , Ingemar J. Cox
- 申请人地址: US NJ Princeton
- 专利权人: NEC Laboratories America, Inc.
- 当前专利权人: NEC Laboratories America, Inc.
- 当前专利权人地址: US NJ Princeton
- 代理机构: Scully, Scott, Murphy & Presser
- 主分类号: G06K9/00
- IPC分类号: G06K9/00
摘要:
A watermark message embedded in a cover work can be made robust to various types of post-embedding operations, while simultaneously minimizing perceptual impact on the cover work. This is accomplished by the informed coding of the watermark message to be embedded. This is also accomplished by the informed embedding of the watermark message code in the cover work. Finally, the watermark message code may be perceptually shaped to minimize impact on the fidelity of the watermarked work. Further, these techniques may be combined for maximum effect.