基于标量衍射理论的图像解密三维信息构造方法

doi:10.7523/j.issn.2095-6134.2012.6.006

中国科学院大学学报 ›› 2012, Vol. ›› Issue (6): 757-766.DOI: 10.7523/j.issn.2095-6134.2012.6.006

基于标量衍射理论的图像解密三维信息构造方法

傅长明¹, 杨玉花^1,2, 李拓¹, 陈岳东¹, 程栋¹, 王雅丽¹, 史祎诗^1,3

1. 中国科学院研究生院, 北京 100049;
2. 北京工业大学应用数理学院, 北京 100124;
3. 中国科学院研究生院信息安全国家重点实验室, 北京 100049

收稿日期:2011-12-05 修回日期:2012-01-14 发布日期:2012-11-15
通讯作者: 史祎诗
基金资助:
国家自然科学基金(60970004);中国科学院优博论文启动基金;中国科学院研究生院院长基金和香港王宽诚教育基金资助

Construction method of three-dimensional information for image decryption based on the scalar diffraction theory

FU Chang-Ming¹, YANG Yu-Hua^1,2, LI Tuo¹, CHEN Yue-Dong¹, CHENG Dong¹, WANG Ya-Li¹, SHI Yi-Shi^1,3

1. Graduate University, Chinese Academy of Sciences, Beijing 100049, China;
2. College of Applied Science, Beijing University of Technology, Beijing 100124, China;
3. State Key Laboratory of Information Security, Graduate University, Chinese Academy of Sciences, Beijing 100049, China

Received:2011-12-05 Revised:2012-01-14 Published:2012-11-15

摘要/Abstract

摘要： 提出合理设置相位延迟以提高光学三维信息解密质量的方法. 利用多个垂直于同一光轴的二维函数,分别以离轴和同轴的形式构造简单三维信息. 采取基于相位抽取的光学三维信息加密算法进行模拟,验证了同轴构造三维信息解密质量受噪声干扰较大,且噪声的产生与加密过程中的相位抽取无关. 通过考察信息相位分布和相位延迟对解密质量的影响,证明合理设置相位延迟可降低解密噪声. 设计2种相位延迟设置方案,分析相应的约束条件.

关键词: 信息安全, 光学加密, 三维信息构造, 相位延迟

Abstract: Construction method of three-dimensional (3D) information with judicious choices of phase retardation is proposed to improve the decryption quality. The simple 3D information can be constructed with multiple two-dimensional distribution functions perpendicular to the axis, in both the cases of off-line and in-line. Optical 3D information encryption is performed based on phase extraction algorithm. Computer simulations show that the decryption quality declines in the in-line constructions compared with that in the off-line ones. Schemes for the phase retardation setting are provided with the analysis of respective constraint conditions.

Key words: information security, optical encryption, construction of three-dimensional information, phase retardation

中图分类号:

O438

傅长明, 杨玉花, 李拓, 陈岳东, 程栋, 王雅丽, 史祎诗. 基于标量衍射理论的图像解密三维信息构造方法[J]. 中国科学院大学学报, 2012, (6): 757-766.

FU Chang-Ming, YANG Yu-Hua, LI Tuo, CHEN Yue-Dong, CHENG Dong, WANG Ya-Li, SHI Yi-Shi. Construction method of three-dimensional information for image decryption based on the scalar diffraction theory[J]. , 2012, (6): 757-766.

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基于标量衍射理论的图像解密三维信息构造方法

Construction method of three-dimensional information for image decryption based on the scalar diffraction theory

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