Optical image encryption via ptychography

被引：207

作者：

Shi, Yishi ^{[1
,2
]}

Li, Tuo ^{[1
]}

Wang, Yali ^{[1
]}

Gao, Qiankun ^{[1
]}

Zhang, Sanguo ^{[3
]}

Li, Haifei ^{[1
,4
]}

机构：

[1] Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 100049, Peoples R China

[2] Chinese Acad Sci, State Key Lab Informat Secur, Inst Informat Engn, Beijing 100093, Peoples R China

[3] Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China

[4] Ordnance Repair Factory AF, Guangzhou 510500, Guangdong, Peoples R China

来源：

OPTICS LETTERS | 2013年 / 38卷 / 09期

关键词：

MICROSCOPY; RESOLUTION; DIFFRACTION;

D O I：

10.1364/OL.38.001425

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Ptychography is combined with optical image encryption for the first time. Due to the nature of ptychography, not only is the interferometric optical setup that is usually adopted not required any more, but also the encryption for a complex-valued image is achievable. Considering that the probes overlapping with each other is the crucial factor in ptychography, their complex-amplitude functions can serve as a kind of secret keys that lead to the enlarged key space and the enhanced system security. Further, since only introducing the probes into the input of common system is required, it is convenient to combine ptychography with many existing optical image encryption systems for varied security applications. (C) 2013 Optical Society of America

引用

页码：1425 / 1427

页数：3

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