发明授权
- 专利标题: Secure robust high-fidelity watermarking
- 专利标题(中): 安全可靠的高保真水印
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申请号: US10124995申请日: 2002-04-18
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公开(公告)号: US07298865B2公开(公告)日: 2007-11-20
- 发明人: Jeffrey Lubin , Jeffrey Adam Bloom
- 申请人: Jeffrey Lubin , Jeffrey Adam Bloom
- 申请人地址: US NJ Princeton
- 专利权人: Sarnoff Corporation
- 当前专利权人: Sarnoff Corporation
- 当前专利权人地址: US NJ Princeton
- 代理机构: Lowenstein Sandler PC
- 主分类号: G06K9/00
- IPC分类号: G06K9/00 ; G06K15/00
摘要:
For each small image region (in space and time), a measure of perceptual transparence of each of a set of possible watermark carrier modulations is used to choose a subset of such modulations, from which a secure random number generator selects, for each image region, a single carrier, modulations of which carry the watermark data.
公开/授权文献
- US20030021439A1 Secure robust high-fidelity watermarking 公开/授权日:2003-01-30
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