发明名称 |
Watermarking using multiple watermarks and keys, including keys dependent on the host signal |
摘要 |
A method of embedding a watermarking in a host signal computes a first watermark depending on a particular party and computes a second watermark depending on the host signal. The method embeds the first and second watermarks in the host signal. At least one of the watermarks is embedded using a key derived from the host signal. In particular, one of the watermarks is embedded with a key derived from the host signal.
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申请公布号 |
US8131007(B2) |
申请公布日期 |
2012.03.06 |
申请号 |
US20070929137 |
申请日期 |
2007.10.30 |
申请人 |
TEWFIK AHMED;ZHU BIN;SWANSON MITCH;REGENTS OF THE UNIVERSITY OF MINNESOTA |
发明人 |
TEWFIK AHMED;ZHU BIN;SWANSON MITCH |
分类号 |
H04K1/00 |
主分类号 |
H04K1/00 |
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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