New Bounds on Separable Codes for Multimedia Fingerprinting
New Bounds on Separable Codes for Multimedia Fingerprinting
复制标题
多媒体指纹识别可分离代码的新界限
DOI:
10.1109/tit.2014.2331989
复制
发表时间:
2014-06
影响因子:
2.5
通讯作者:
Ge, Gennian
中科院分区:
文献类型:
--
作者:
Gao, Fei;Ge, Gennian
Multimedia fingerprinting is an effective technique to trace the sources of pirate copies of copyrighted multimedia contents. Separable codes were introduced to detect colluders taking part in the averaging attack, which is the most feasible approach to perform a collusion attack. In this paper, we provide some improved bounds for the size of separable codes. Using a combinatorial technique named grouping coordinates, we have greatly reduced the upper bound. On the other hand, we also provide some lower bounds for the size of separable codes by both probabilistic and deterministic construction methods. In particular, 2̅-separable codes with asymptotically optimal rate are obtained by the deletion method.
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DOI:
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发表时间:
2003-04
期刊:
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影响因子:
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通讯作者:
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影响因子:
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