Double-image encryption based on joint transform correlation and phase-shifting interferometry

被引：0
|
作者：
沈丽娜
李军
常鸿森
机构：
[1] Guangzhou 510006
[2] School of Physics and Telecommunication Engineering South China Normal University
来源：
Chinese Optics Letters | 2007年 / 12期
关键词：
JTC; Double-image encryption based on joint transform correlation and phase-shifting interferometry; MZI; exp; CCD; PSI;
D O I：
暂无
中图分类号：
TN919.8 [图像通信、多媒体通信];
学科分类号：
0810 ; 081001 ;
摘要：
An image encryption method combining the joint transform correlator (JTC) architecture with phase- shifting interferometry to realize double random-phase encoding is proposed.The encrypted field and the decrypting key are registered as holograms by phase-shifting interferometry.This method can encrypt two images simultaneously to improve the encryption efficiency of the methods based on JTC architecture,and eliminate the system alignment constraint of the methods based on Mach-Zehnder interferometer (MZI) architecture.Its feasibility and validity are verified by computer simulations.Moreover,image encryption and decryption can be achieved at high speed optically or digitally.The encrypted data are suitable for Internet transmission.
引用
收藏
页码：687 / 689
页数：3
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