摘要
研究数字媒体版权保护问题,由于三维网格模型数据量大,传统数字水印算法不能很好解决水印的不可见性和抗攻击性之间矛盾,安全性不高。为了更好保护数字媒体版权,提出一种新的三维网格模型的数字水印算法。采用奇异值分解将三维水印信号分解,降低数据复杂度,然后采用零水印算法进行水印嵌入和检测。仿真结果表明,网络模型算法嵌入的水印信息不仅具有很好的不可见性,而且能够很好抵抗模型的平移、剪切、旋转、等比例缩放以及噪声攻击,算法执行效率较高,能够满足实时性要求高的数字媒体版权验证。
Study of digital media copyright protection of 3D mesh models, due to the large amount of data, the traditional digital watermark algorithm cannot very good solve watermark can resist all kinds of attacks and conflict be- tween, security is not high. In order to better protection of digital media copyright, this paper presents a new 3D mesh model watermarking algorithm. Using the singular value decomposition of 3D watermarking signal is decom- posed into, reduce the complexity of data, then the zero watermark algorithm embedding and detecting watermark. The simulation experiment node Ming, the embedded watermark has good imperceptibility, and can very good resist- ance model of translation, shear, rotation, scaling and noise attack, the efficiency of the algorithm is high, can satis- fy the real time requirement of high digital media copyright verification.
出处
《计算机仿真》
CSCD
北大核心
2012年第6期253-256,共4页
Computer Simulation
关键词
奇异值分解
三维网格模型
数字水印
鲁棒性
Singular value decomposition
3 D mesh mode
Digital water marking
Robustness
