【摘要】 数字指纹可以用来标识数字媒体的使用者,达到版权保护的目的。其面临的最大问题是如何抵御串谋攻击。文章讨论了利用组合设计理论,构造非线性DBBD(DifferentialBalancedBlockDesign)码作为数字媒体(图像、视频等)指纹码字的方法。该码字具有抵御串谋攻击和纠错的特性,可以与数字水印技术相结合作为数字媒体版权保护的技术。更多还原

【Abstract】 Digital fingerprint is able to identify the customer of the digital media and protect the copyright.The most important problem to fingerprint is how to resist colluded pirate.This paper uses combinatorial theory and constructs nonlinear DBBD(Differential Balanced Block Design)code as fingerprint for digital media(image,video,etc).The code can anti-collusion and has the capability of error correct.It can be combined with the digital watermark to protect the copy-right of digital media.更多还原