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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 9 — May. 1, 2013
  • pp: 1425–1427

Optical image encryption via ptychography

Yishi Shi, Tuo Li, Yali Wang, Qiankun Gao, Sanguo Zhang, and Haifei Li  »View Author Affiliations

Optics Letters, Vol. 38, Issue 9, pp. 1425-1427 (2013)

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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.

© 2013 Optical Society of America

OCIS Codes
(100.2000) Image processing : Digital image processing
(110.1650) Imaging systems : Coherence imaging
(060.4785) Fiber optics and optical communications : Optical security and encryption
(100.4998) Image processing : Pattern recognition, optical security and encryption

ToC Category:
Image Processing

Original Manuscript: February 5, 2013
Revised Manuscript: March 10, 2013
Manuscript Accepted: March 26, 2013
Published: April 24, 2013

Yishi Shi, Tuo Li, Yali Wang, Qiankun Gao, Sanguo Zhang, and Haifei Li, "Optical image encryption via ptychography," Opt. Lett. 38, 1425-1427 (2013)

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