发明名称 |
Inferring object status based on detected watermark data |
摘要 |
Image, video, or audio data is encoded with both a frail and a robust watermark. The two watermarks respond differently to different forms of processing (e.g., copying the object may render the frail watermark unreadable), permitting an original object to be distinguished from a processed object. Appropriate action can then taken in response thereto.
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申请公布号 |
US2002159615(A1) |
申请公布日期 |
2002.10.31 |
申请号 |
US20020112647 |
申请日期 |
2002.03.28 |
申请人 |
RHOADS GEOFFREY B.;GUSTAFSON AMMON E. |
发明人 |
RHOADS GEOFFREY B.;GUSTAFSON AMMON E. |
分类号 |
B29C45/14;B42D15/00;G06Q30/00;G06T1/00;G06T7/00;G07C9/00;G07D7/00;G07D7/12;G07F7/08;G07F7/12;G10L19/00;G11B20/00;H04N1/00;H04N1/32;(IPC1-7):G06K9/00 |
主分类号 |
B29C45/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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