结合改进矩阵编码的奇异值修改视频隐写算法  

Novel video steganographic algorithm based on modifying singular value combining with improved matrix encoding

作　　者：张英男[1,2] 张敏情[1,2] 罗鹏 

机构地区：[1]武警工程大学电子技术系,陕西西安710086 [2]武警工程大学网络与信息安全武警部队重点实验室,陕西西安710086

出　　处：《华中科技大学学报（自然科学版）》2016年第3期89-93,共5页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(61379152;61403417)

摘　　要：针对当前视频隐写算法鲁棒性较低以及对载体修改率较大等问题,提出一种结合改进矩阵编码的奇异值修改视频隐写算法.先对视频帧进行分块,然后取出每块中的最大奇异值,并根据改进的矩阵编码进行信息嵌入.实验结果表明:算法具有较好的视觉不可见性,并在修改率较小的前提下具有较大的嵌入容量,并对视频载体的比特率影响较小,在模拟网络环境中噪声、滤波攻击后位错率(BER)较小.Combining with improved matrix encoding,a video steganography algorithm based on singular value decomposition was proposed for the weak robustness and big modification rate of the current video steganography algorithm.Firstly,the video frames were divided into blocks,and the maximum singular value of each block was taken out,then the information bit was embedded according to the improved matrix encoding.The experimental results indicate that the algorithm has good invisibility,large embedding capacity without big modification,little influence on the bite rate of the video carrier,and the bit error rate is low after attacks such as noise and flittering in the simulation environment.

关 键 词：信息隐藏 奇异值分解 矩阵编码 视频 鲁棒性 修改率 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]