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Title: Optical image encryption based on diffractive imaging
Authors: Chen, W. 
Chen, X. 
Sheppard, C.J.R. 
Issue Date: 15-Nov-2010
Citation: Chen, W., Chen, X., Sheppard, C.J.R. (2010-11-15). Optical image encryption based on diffractive imaging. Optics Letters 35 (22) : 3817-3819. ScholarBank@NUS Repository.
Abstract: In this Letter, we propose a method for optical image encryption based on diffractive imaging. An optical multiple randomphasemask encoding systemis applied, and one of the phase-onlymasks 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 proposedmethod 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. © 2010 Optical Society of America.
Source Title: Optics Letters
ISSN: 01469592
DOI: 10.1364/OL.35.003817
Appears in Collections:Staff Publications

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