Please use this identifier to cite or link to this item: https://doi.org/10.1109/TENCON.2013.6718955
Title: Optical encryption based on 3-D sphere and phase retrieval in gyrator transform domain
Authors: Chen, W. 
Chen, X. 
Keywords: 3-D sphere
gyrator transform
information security
optical image encryption
phase retrieval
Issue Date: 2013
Source: Chen, W.,Chen, X. (2013). Optical encryption based on 3-D sphere and phase retrieval in gyrator transform domain. IEEE Region 10 Annual International Conference, Proceedings/TENCON : -. ScholarBank@NUS Repository. https://doi.org/10.1109/TENCON.2013.6718955
Abstract: With the rapid development of modern technologies, information security has attracted more and more current attention. In this paper, we present optical image encryption based on 3-D sphere and phase retrieval in gyrator transform domain. The plaintext is divided into a series of small quadratic blocks, and each block is treated as a particle. The series of particles is distributed in 3-D spheres, and is encrypted into one phase-only mask based on an iterative phase retrieval algorithm. During image decryption, the extracted phase-only mask is rotated and illuminated to sequentially extract a series of focused particles. Subsequently, a decrypted image can be obtained by incorporating all the decoded particles in the transverse domain. Numerical experiment is conducted to demonstrate feasibility and effectiveness of the presented method. © 2013 IEEE.
Source Title: IEEE Region 10 Annual International Conference, Proceedings/TENCON
URI: http://scholarbank.nus.edu.sg/handle/10635/84046
ISBN: 9781479928262
ISSN: 21593442
DOI: 10.1109/TENCON.2013.6718955
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