基于秘密共享与盗版追踪的视频水印算法  

Video Watermarking Algorithm Based on Secret Sharing and Piracy Tracking

作　　者：史国川[1] 李江卫 

机构地区：[1]陆军军官学院,安徽合肥230031

出　　处：《计算机仿真》2014年第12期256-260,共5页Computer Simulation

基　　金：陆军军官学院科研学术基金项目(2011XYJJ-051)

摘　　要：为了实现版权保护和盗版追踪,保持较好的水印嵌入量和信息量,同时不失鲁棒性。提出了基于秘密共享与盗版追踪的视频水印算法。算法利用水印预处理时的(N,N)秘密共享和ECC椭圆曲线加密密文形成嵌入水印。在水印嵌入时,利用量化失真选取合适DCT系数作为嵌入位,同时利用DCT局部能量和量化失真补偿在I帧中进行自适应水印嵌入。实验结果表明:在保证高质量视频的前提下,水印对椒盐噪声,高斯噪声,重压缩等常规信号处理表现出很强的鲁棒性。同时,实现了对视频的盗版追踪,在版权保护中具有很好的实际应用价值。In order to achieve copyright protection and piracy tracking, keep better embedding quantity and the a- mount of information, but without losing robustness, video watermarking algorithm is proposed based on secret sharing and piracy tracking. The algorithm uses the watermark preproeessing of （N, N） secret sharing and ECC elliptic curve eneryption cipher to form embedded watermark. During watermark embedding, quantization distortion is used to choose embedding location. By using quantization distortion compensation and the local energy of DCT, the watermark is embedded in 1 frame to achieve the robustness of watermark to facing all kinds of conventional signal processing. Also,the video piracy tracking is ensured to have a good practical value.

关 键 词：视频水印 秘密共享 椭圆曲线加密 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]