Multiple-image encryption based on computational ghost imaging
Multiple-image encryption based on computational ghost imaging
复制标题
基于计算鬼影成像的多图像加密
DOI：
10.1016/j.optcom.2015.09.039
复制
发表时间：
2016-01-15
影响因子：
2.4
通讯作者：
Liu, Shutian
中科院分区：
文献类型：
--
作者：
Wu, Jingjing;Xie, Zhenwei;Liu, Shutian
我们提出了一种基于位置复用计算重影成像的光学多图像加密方案。在加密过程中，利用不同衍射距离的计算重影成像将每张明文图像加密为强度向量。最终的密文是通过将所有强度向量叠加在一起生成的。与常见的多图像密码系统不同，该方案中的密文只是强度向量而不是复振幅。仿真结果证明了所提出的多图像加密方法的有效性和安全性。还研究了所提出方法的复用容量。光学实验验证了该方案在实际应用中的有效性。 (C) 2015 Elsevier B.V. 保留所有权利。
We propose an optical multiple-image encryption scheme based on computational ghost imaging with the position multiplexing. In the encryption process, each plain image is encrypted into an intensity vector by using the computational ghost imaging with a different diffraction distance. The final ciphertext is generated by superposing all the intensity vectors together. Different from common multipleimage cryptosystems, the ciphertext in the proposed scheme is simply an intensity vector instead of a complex amplitude. Simulation results are presented to demonstrate the validity and security of the proposed multiple-image encryption method. The multiplexing capacity of the proposed method is also investigated. Optical experiment is presented to verify the validity of the proposed scheme in practical application. (C) 2015 Elsevier B.V. All rights reserved.