| 一种基于全息原理的数字图像实时加密解密系统 |
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| 引用本文： | 牛春晖,王晓玲,吕乃光,周哲海,李晓英,NIU Chun-hui,WANG Xiao-ling,Lü Nai-guang,ZHOU Zhe-hai,LI Xiao-ying.一种基于全息原理的数字图像实时加密解密系统[J].北京机械工业学院学报,2010,25(3):56-60. |
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| 作者姓名： | 牛春晖 王晓玲 吕乃光 周哲海 李晓英 NIU Chun-hui WANG Xiao-ling Lü Nai-guang ZHOU Zhe-hai LI Xiao-ying |
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| 作者单位： | 北京信息科技大学,光电信息与通信工程学院,北京,100192 |
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| 基金项目： | 北京市教育委员会面上项目 |
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| 摘 要： | 提出了一种新的数字图像加密解密系统。该系统基于全息原理以及随机位相编码的思想，加密过程是通过全息记录原理以及随机位相编码方法在光学系统中实现的，解密过程借助于计算机，采用逆菲涅尔变换算法恢复出原图像。仿真结果表明提出的方法结构简单，成本低，能实现实时准确地加密并解密数字图像，并且密钥保密度高。
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| 关 键 词： | 全息术 图像处理与复原 光学系统设计 |
A real-time system for encrypting and decrypting digital images based on holographic principle |
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| NIU Chun-hui,WANG Xiao-ling,ZHOU Zhe-hai,LI Xiao-ying.A real-time system for encrypting and decrypting digital images based on holographic principle[J].Journal of Beijing Institute of Machinery,2010,25(3):56-60. |
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| Authors: | NIU Chun-hui WANG Xiao-ling ZHOU Zhe-hai LI Xiao-ying |
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| Affiliation: | ( School of Photoelectric Information and Telecommunication Engineering, Beijing Information Science and Technology University,Beijing 100192, China) |
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| Abstract: | A new system for encrypting and decrypting digital images is proposed in this article. The system is based on holographic principle and random phase encoding theory, and the process of en- crypting is realized in real optical system through holographic recording principle and random phase enco- ding method. The process of decrypting adopts inverse Fresnel transformation algorithm to recover original image in aid of computers. The proposed method has simple structure and low cost, which can encrypt and decrvpt digital images accurately in |
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| Keywords: | holography image processing and restoration optical system design |
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