发明名称 |
Feature-based watermarks and watermark detection strategies |
摘要 |
Processes and apparatus for improving the state of the art for watermarking and data protection. The disclosure includes feature-based watermarks, auto- and cross-correlation techniques for determining scaling and rotation, transitions in time based watermarking, autocorrelation watermarks for images, and dynamic content scrambling of static files. |
申请公布号 |
US2001036292(A1) |
申请公布日期 |
2001.11.01 |
申请号 |
US20010810079 |
申请日期 |
2001.03.16 |
申请人 |
LEVY KENNETH L.;DECKER STEPHEN K. |
发明人 |
LEVY KENNETH L.;DECKER STEPHEN K. |
分类号 |
G06K9/00;(IPC1-7):G06K9/00 |
主分类号 |
G06K9/00 |
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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