发明名称 |
Apparatus for and method of embedding watermark into original information, transmitting watermarked information, and reconstructing the watermark |
摘要 |
An apparatus for and method of embedding a watermark into original information, transmitting the watermarked information, and reconstructing the watermark from the transmitted watermarked information include embedding a portion of a plurality of components constituting the watermark into the original information, and using the remaining portion of the components as keys for reconstructing the watermark. According to the method, since a size of data to be embedded is greatly reduced, degradation of the watermarked information is prevented, and the information becomes more robust against hacking attacks or errors occurring in a variety of ways when transmitting the information.
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申请公布号 |
US2003123661(A1) |
申请公布日期 |
2003.07.03 |
申请号 |
US20020307500 |
申请日期 |
2002.12.02 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
OH SANG-HEUN;KIM BYUNG-JUN;PARK SUNG-WOOK |
分类号 |
H04N5/913;G06T1/00;G09C5/00;H03M7/30;H04N1/387;H04N7/08;H04N7/081;H04N11/04;(IPC1-7):H04N7/167 |
主分类号 |
H04N5/913 |
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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