Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.optcom.2011.12.097
Title: Structured-illumination-based lensless diffractive imaging and its application to optical image encryption
Authors: Chen, W. 
Chen, X. 
Keywords: Lensless diffractive imaging
Optical image encryption
Security analysis
Structured illumination
Virtual optics
Issue Date: 15-Apr-2012
Source: Chen, W., Chen, X. (2012-04-15). Structured-illumination-based lensless diffractive imaging and its application to optical image encryption. Optics Communications 285 (8) : 2044-2047. ScholarBank@NUS Repository. https://doi.org/10.1016/j.optcom.2011.12.097
Abstract: In this paper, we propose a new method in the structured-illumination-based lensless diffractive imaging using variable grating pitches. When a phase grating pitch is sequentially changed, a series of diffraction patterns can be recorded by a charge-coupled device (CCD) camera. Subsequently, a phase retrieval algorithm with a rapid convergence rate is developed to recover a high-quality object from the recorded diffraction patterns. The proposed method is further applied to optical image encryption, and simulation results are presented to demonstrate validity of the proposed method. © 2012 Elsevier B.V. All rights reserved.
Source Title: Optics Communications
URI: http://scholarbank.nus.edu.sg/handle/10635/57533
ISSN: 00304018
DOI: 10.1016/j.optcom.2011.12.097
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