期刊文献+

数字水印的二进制对称信道容量理论 被引量:3

Watermark Capacity Theory in Binary Symmetric Channel
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摘要 假设数字水印的原始载体由二进制字符组成,水印模型被化简为二进制对称信道来描述水印信息的嵌入与攻击过程.在此通信模型基础上,对数字水印的容量和安全性进行了理论推导,同时得到了无攻击和两类攻击情形下的容量和安全性指标的可计算表达式,为水印容量与安全性指标之间建立了明确的数学联系,对水印的理论与技术的发展具有较强的指导作用.实验认为按照该理论计算的结果比较贴近实际情况.
机构地区 北京大学
出处 《北京邮电大学学报》 EI CAS CSCD 北大核心 2005年第z1期26-30,共5页 Journal of Beijing University of Posts and Telecommunications
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参考文献10

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同被引文献33

  • 1伍宏涛,杨义先.数字水印的技术、理论与应用(1)[J].电视技术,2004,28(8):71-74. 被引量:12
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  • 3胡云,伍宏涛,张涵钰,钮心忻,杨义先.大容量索引图像水印方案的设计与实现[J].北京邮电大学学报,2005,28(1):26-29. 被引量:9
  • 4刘岩,伍祥生,郑东,赵继英,姚建平.基于相位信息的旋转、缩放、位移不变的图像水印技术(英文)[J].中国电机工程学报,2005,25(10):89-96. 被引量:5
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