Optical image encryption based on diffractive imaging

被引：328

作者：

Chen, Wen ^{[1
]}

Chen, Xudong ^{[1
]}

Sheppard, Colin J. R. ^{[2
]}

机构：

[1] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore

[2] Natl Univ Singapore, Div Bioengn, Singapore 117574, Singapore

来源：

OPTICS LETTERS | 2010年 / 35卷 / 22期

关键词：

RANDOM-PHASE ENCRYPTION; SECURITY; INFORMATION; DOMAIN;

D O I：

10.1364/OL.35.003817

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this Letter, we propose a method for optical image encryption based on diffractive imaging. An optical multiple random phase mask encoding system is applied, and one of the phase-only masks is selected and laterally translated along a preset direction during the encryption process. For image decryption, a phase retrieval algorithm is proposed to extract a high-quality plaintext. The feasibility and effectiveness of the proposed method are demonstrated by numerical results. The proposed method can provide a new strategy instead of conventional interference methods, and it may open up a new research perspective for optical image encryption. (C) 2010 Optical Society of America

引用

页码：3817 / 3819

页数：3

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