New Bounds on Separable Codes for Multimedia Fingerprinting

New Bounds on Separable Codes for Multimedia Fingerprinting
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多媒体指纹识别可分离代码的新界限

DOI:
10.1109/tit.2014.2331989
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发表时间:
2014-06
影响因子:
2.5
通讯作者:
Ge, Gennian
Ge, Gennian
中科院分区:
计算机科学2区
文献类型:
--
作者:
Gao, Fei;Ge, Gennian

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多媒体指纹技术是一种有效的追踪盗版多媒体内容来源的技术。引入可分码检测参与平均攻击的共谋者,这是实现共谋攻击最可行的方法。在本文中,我们提供了一些改进的界的大小可分离码。使用组合技术命名的分组坐标,我们大大降低了上限。另一方面,我们也提供了一些下界的可分离码的大小的概率和确定性的构造方法。特别地,利用删除法得到了具有渐近最优速率的2-可分码。
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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