Please use this identifier to cite or link to this item: https://doi.org/10.1117/12.848190
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dc.titleOptical image encryption with a bit-plane separation method in phase-shifting digital holography
dc.contributor.authorChen, W.
dc.contributor.authorQuan, C.
dc.contributor.authorTay, C.J.
dc.date.accessioned2014-04-24T08:37:00Z
dc.date.available2014-04-24T08:37:00Z
dc.date.issued2010
dc.identifier.citationChen, W., Quan, C., Tay, C.J. (2010). Optical image encryption with a bit-plane separation method in phase-shifting digital holography. Proceedings of SPIE - The International Society for Optical Engineering 7522 : -. ScholarBank@NUS Repository. https://doi.org/10.1117/12.848190
dc.identifier.isbn9780819479129
dc.identifier.issn0277786X
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/51227
dc.description.abstractIn this paper, we propose a method for optical image encryption based on fractional Fourier transform (FRFT) and Arnold transform (ART) in phase-shifting digital holography. An input image is first divided into eight bit planes, and each bit plane is encrypted based on double random-phase masks and FRFT. Complex amplitude for the object is retrieved by phase-shifting digital holography in the hologram plane. The real and imaginary parts of the retrieved complex amplitudes for the 0th-7th bit planes are further encrypted using ART algorithm. Numerical results are shown to demonstrate the feasibility and effectiveness of the proposed technique. The sensitivity of security parameters, such as function orders in FRFT and iteration number in ART method, is also analyzed. © 2010 SPIE.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1117/12.848190
dc.sourceScopus
dc.subjectArnold transform (ART)
dc.subjectBit plane
dc.subjectDouble random-phase masks
dc.subjectFractional Fourier transform (FRFT)
dc.subjectPhase-shifting digital holography
dc.typeConference Paper
dc.contributor.departmentELECTRICAL & COMPUTER ENGINEERING
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.doi10.1117/12.848190
dc.description.sourcetitleProceedings of SPIE - The International Society for Optical Engineering
dc.description.volume7522
dc.description.page-
dc.description.codenPSISD
dc.identifier.isiut000285572800072
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