Please use this identifier to cite or link to this item:
|Title:||Optical double-image cryptography based on diffractive imaging with a laterally-translated phase grating|
|Authors:||Chen, W. |
|Citation:||Chen, 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.|
|Abstract:||In 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.|
|Source Title:||Applied Optics|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 27, 2018
WEB OF SCIENCETM
checked on Dec 31, 2018
checked on Mar 16, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.