Optical implementation of image encryption using random phase encoding

被引：70

作者：

Neto, LG ^{[1
]}

Sheng, YL ^{[1
]}

机构：

[1] UNIV LAVAL,CTR OPT PHOTON & LASER,DEPT PHYS,QUEBEC CITY,PQ G1K 7P4,CANADA

来源：

OPTICAL ENGINEERING | 1996年 / 35卷 / 09期

关键词：

optical security; optical image encryption; speckle-free kinoform; band-limited function;

D O I：

10.1117/1.600848

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In the optical implementation of image encryption using random phase encoding proposed by Refregier and Javidi the random phase mask is not band limited. Speckle noise can thus destroy optical reconstruction of the encrypted images. We demonstrate encryption of speckle-free kinoforms by smoothed random phase masks. Optical verification of the encrypted images is shown. (C) 1996 Society of Photo-Optical Instrumentation Engineers.

引用

页码：2459 / 2463

页数：5

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