一种基于门限方案的鲁棒性视频水印算法  

A Robust Video WatermarkingAlgorithm Based on Threshold Scheme

作　　者：史国川[1] 史斌浩[2] 鲁磊纪 王欢[1] 

机构地区：[1]陆军军官学院,合肥230031 [2]安徽医科大学,合肥230008

出　　处：《计算机与数字工程》2016年第2期296-299,共4页Computer & Digital Engineering

摘　　要：依据Shamir的(T,N)门限方案,提出一种鲁棒性视频水印算法。在生成水印时,采用(N,N)门限方案,将图像水印信息压缩为原信息的1/n后进行水印的嵌入,可大幅度减少水印的嵌入量。在嵌入水印时,利用DCT变换后中频系数的特性,将水印嵌入到I帧中,提高水印的鲁棒性。实验结果表明,新算法能够抵抗椒盐噪声、高斯噪声、重编码压缩等多种攻击,鲁棒性较好。According to Shamir（T,N）threshold scheme,a robust video watermarking algorithm is proposed.In the generated watermarking,using the（N,N）threshold scheme,the image watermarking information compression to the original information after the 1/N of watermark embedding can greatly reduce the magnitude of the embedded watermarking.When embedding watermarking,characteristics of intermediate frequency coefficient after using DCT transform,embedding the watermarking into theⅠframe improve the robustness of the watermarking.The experimental results show that the new algorithm can resist salt and pepper noise,Gaussian noise,re-coding compression and other many kinds of attacks,showing better robustness.

关 键 词：门限方案 视频水印 DCT 鲁棒性 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]