Please use this identifier to cite or link to this item: https://doi.org/10.1364/AO.50.005750
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dc.titleOptical double-image cryptography based on diffractive imaging with a laterally-translated phase grating
dc.contributor.authorChen, W.
dc.contributor.authorChen, X.
dc.contributor.authorSheppard, C.J.R.
dc.date.accessioned2014-04-24T07:23:37Z
dc.date.available2014-04-24T07:23:37Z
dc.date.issued2011-10-10
dc.identifier.citationChen, W., Chen, X., Sheppard, C.J.R. (2011-10-10). Optical double-image cryptography based on diffractive imaging with a laterally-translated phase grating. Applied Optics 50 (29) : 5750-5757. ScholarBank@NUS Repository. https://doi.org/10.1364/AO.50.005750
dc.identifier.issn00036935
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/51000
dc.description.abstractIn this paper, we propose a method using structured-illumination-based diffractive imaging with a laterally- translated phase grating for optical double-image cryptography. An optical cryptosystem is designed, and multiple random phase-only masks are placed in the optical path. When a phase grating is laterally translated just before the plaintexts, several diffraction intensity patterns (i.e., ciphertexts) can be correspondingly obtained. During image decryption, an iterative retrieval algorithm is developed to extract plaintexts from the ciphertexts. In addition, security and advantages of the proposed method are analyzed. Feasibility and effectiveness of the proposed method are demonstrated by numerical simulation results. © 2011 Optical Society of America.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1364/AO.50.005750
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentELECTRICAL & COMPUTER ENGINEERING
dc.contributor.departmentBIOENGINEERING
dc.description.doi10.1364/AO.50.005750
dc.description.sourcetitleApplied Optics
dc.description.volume50
dc.description.issue29
dc.description.page5750-5757
dc.description.codenAPOPA
dc.identifier.isiut000296066600018
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