Image encryption based on pure intensity random coding and digital holography technique

被引：21

作者：

Zhu, BH ^{[1
]}

Zhao, HF ^{[1
]}

Liu, ST ^{[1
]}

机构：

[1] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China

来源：

OPTIK | 2003年 / 114卷 / 02期

关键词：

digital holography; optical security; optical image encryption;

D O I：

10.1078/0030-4026-00228

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a novel image encryption method that combines the pure intensity random encoding and the digital holography technique. A phase-shifting interferometer records both phase and amplitude information of a complex object with a CCD sensor array. The encryption is performed by placing two pureintensity random masks between the image to be encrypted and an intensity recording device. Electronic decryption can be performed with fast Fresnel reconstruction procedure. Numerical simulation results show the validity of the algorithm and an optoelectronic implementation setup is also presented.

引用

页码：95 / 99

页数：5

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