基于离散小波变换和奇异值分解的版权保护视频水印算法研究  

A Copyright Protection Video Watermarking Algorithm Based on Discrete Wavelet Transform and Singular Value Decompositon

作　　者：祁清[1] 王世国[2] 

机构地区：[1]青海民族大学物理与电子信息工程学院 [2]青海民族大学实验室与设备管理中心,青海西宁810007

出　　处：《软件导刊》2015年第2期56-58,共3页Software Guide

基　　金：青海民族大学2014年校级理工自然科学项目(2014XJZ17)

摘　　要：针对含水印视频受几何攻击的问题,提出基于小波变换与奇异值分解的视频数字水印算法。在探讨离散小波变换和奇异值分解概念的基础上,对已有算法进行分析,探讨其中存在的问题。提出基于小波变换与奇异值分解的视频数字水印算法,并探讨水印设计的思路、嵌入和提取框架图,完成仿真实验。最后,将本文算法与其它算法进行水印鲁棒性和不可见性比较。实验表明,该算法对几何攻击具有强鲁棒性。A video watermarking algorithm based on discrete wavelet transform （DWT） and singular value decomposition （SVD） is proposed to counteract geometric attacks .Firstly ,the concepts of discrete wavelet transform and singular value decomposition are stated briefly .Secondly ,the existing algorithms are analyzed ,their shortcomings are examined .Then , a video watermarking algorithm based on DWT and SVD is presented .Detailed descriptions of the design ideas of the wa‐termark embedding and extraction framework are given ,simulation experiments are carried out as well .Finally ,compari‐son of the proposed with typical algorithms in respects of visibility and robustness is conducted .Experiments show that the proposed algorithm is more robust to geometric attacks than others .

关 键 词：数字视频水印 鲁棒性 透明性 抗几何攻击 

分 类 号：TP312[自动化与计算机技术—计算机软件与理论]