Digital wavefront reconstruction and its application to image encryption

被引:70
作者
Lai, S [1 ]
Neifeld, MA [1 ]
机构
[1] Univ Arizona, Dept Elect & Comp Engn, Tucson, AZ 85721 USA
关键词
digital holography; phase retrieval; image security;
D O I
10.1016/S0030-4018(00)00641-6
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Phase-shifting digital holography can be used to artificially reconstruct both the amplitude and phase information of a complex object. We apply digital wavefront reconstruction to image encryption. The encrypted wavefront is recorded using a CCD sensor array, facilitating real time transmission of the encrypted message via traditional digital communication methods. Initial experimental results show that high security strength can be obtained with currently available devices. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码:283 / 289
页数:7
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