[1]李新宇,陈阳.基于 DWT SVD 的盲检测鲁棒视频水印算法[J].计算机技术与发展,2018,28(09):123-126.[doi:10.3969/ j. issn.1673-629X.2018.09.025]
　LI Xin-yu,CHEN Yang.A Robust Video Watermarking Algorithm for Blind Detection Based on DWT SVD[J].,2018,28(09):123-126.[doi:10.3969/ j. issn.1673-629X.2018.09.025]
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基于 DWT SVD 的盲检测鲁棒视频水印算法()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
28
期数:
2018年09期
页码:
123-126
栏目:
安全与防范
出版日期:
2018-09-10

文章信息/Info

Title:
A Robust Video Watermarking Algorithm for Blind Detection Based on DWT SVD
文章编号:
1673-629X(2018)09-0123-04
作者:
李新宇; 陈阳
湖南第一师范学院 信息科学与工程学院,湖南 长沙 410205
Author(s):
LI Xin-yu; CHEN Yang
School of Information Science and Engineering,Hunan First Normal University,Changsha 410205,China
关键词:
离散小波变换; 奇异值分解; Logistic 混沌映射; 视频水印; 鲁棒性
Keywords:
discrete wavelet transform; singular value decomposition; Logistic chaotic mapping; video watermarking; robustness
分类号:
TP301.6
DOI:
10.3969/ j. issn.1673-629X.2018.09.025
文献标志码:
A
摘要:
结合离散小波变换、奇异值分解和 Logistic 混沌映射等相关数字水印技术,提出了一种新的适用于视频版权保护的盲水印算法。 该算法利用了矩阵奇异值分解的能量稳定特性以及小波变换具有高低频分离的特点,首先选取原始载体视频序列的若干场景,借助密钥分离其亮度分量,随后对其进行分块奇异值分解,取最大奇异值进行小波变换;选取小波变换后第 r 层的低频子带 LL r 再次进行奇异值分解,取奇异值矩阵的第二个对角元素组成新的矩阵,最后将 Arnold 置乱处理后的水印嵌入到新的矩阵中。 该算法采用混沌映射产生的序列对水印图像进行预处理,将完整水印重复地嵌入到若干段场景中。 水印检测时,根据嵌入水印时的量化值能够盲提取水印信号。 仿真实验表明,该算法对一般的视频信号处理及常规几何攻击具有良好鲁棒性。
Abstract:
We propose a new blind watermarking algorithm suitable for video copyright protection based on discrete wavelet transform,singular value decomposition and Logistic chaotic map. This algorithm makes full use of the characteristics of the high and low frequency separation of the wavelet transform and the energy stability of the singular value decomposition of the matrix. Firstly,several scenes of the original carrier video sequence are selected,and the luminance components are separated by the key. Then the block singular value decomposition is applied to get the maximum singular value for wavelet transform. The low frequency subband LL r of the r layer after wavelet transform is used to decompose the singular value again. The second diagonal elements of the singular value matrix form a new matrix. Finally,the watermark after the Arnold scrambling is embedded into the new matrix. In this paper,the sequence of chaotic mapping is used to preprocess the watermark image. In the scene,the preprocessed complete watermark is repeatedly embedded into selected segments of the scene. When the watermark is detected,the watermark signal can be extracted blindly according to the quantization value embedded in the watermark. The simulation shows that the algorithm has better robustness for the general signal processing and geometric attack.

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更新日期/Last Update: 2018-09-10