[1]张爱华 薄禄裕 盛飞 杨培.基于小波变换的压缩感知在图像加密中的应用[J].计算机技术与发展,2011,(12):145-147.
 ZHANG Ai-hua,BO Lu-yu,SHENG Fei,et al.Compressed Sensing Based on Single Layer Wavelet Transform for Image Encryption[J].,2011,(12):145-147.
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基于小波变换的压缩感知在图像加密中的应用()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2011年12期
页码:
145-147
栏目:
安全与防范
出版日期:
1900-01-01

文章信息/Info

Title:
Compressed Sensing Based on Single Layer Wavelet Transform for Image Encryption
文章编号:
1673-629X(2011)12-0145-03
作者:
张爱华 薄禄裕 盛飞 杨培
南京邮电大学
Author(s):
ZHANG Ai-hua BO Lu-yu SHENG Fei YANG Pei
Nanjing University of Posts and Telecommunications
关键词:
压缩感知图像加密单层小波变换斜帐篷映射混沌序列
Keywords:
compressed sensing image encryption single layer wavelet transform skew tent map chaotic sequences
分类号:
TP309
文献标志码:
A
摘要:
利用单层小波变换的压缩感知算法的特点,提出了一种基于斜帐篷映射的混沌图像加密系统的改进方法。加密时,首先应用基于单层小波变换的压缩感知算法对图像进行初始化,然后对初始化后的图像加密。解密时,首先进行加密映射的反变换解密,然后利用正交匹配追踪算法(OMP)对高频系数进行恢复,最后再进行小波反变换重构图像。仿真结果表明,该算法不仅继承了原有系统的优良密码学特性,而且在相同时间条件下,在图像较小失真的情况下大大增加图像加密的安全性
Abstract:
According to compressed sensing algorithm based on the single layer wavelet transform, a new chaotic cryptosystem method based on skew tent map was proposed. For the encryption ,by using the improved compressed sensing algorithm based on the single layer wavelet transform could initialize the image,then the image can be encrypted. For the decryption,decrypt the image first,then by using the orthogonal matching pursuit (OMP) algorithm,high-pass wavelet coefficients could be recovered by the measurements. Then the image could be reconstructed by the inverse wavelet transform. Compared with the original cryptosystem,the proposed cryptosystem inberited the advantages of the original one and it greatly enhances the security of image encryption with small image distortion by using the same time

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备注/Memo

备注/Memo:
国家自然科学基金(61070234);南京邮电大学校科研基金(NY210018)张爱华(1969-),女,山西广灵人,副教授,主要研究方向为非线性分析及拓扑动力系统;薄禄裕(1986-),男,硕士,研究方向为非线性分析及其应用
更新日期/Last Update: 1900-01-01