Hennelly, Bryan M. and Sheridan, J. T. (2003) Image encryption and the fractional Fourier transform. Optik, 114 (6). pp. 251-265. ISSN 0030-4026

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Abstract

A number of method have been recently proposed in the literature for the encryption of 2-D information using optical systems based on the fractional Fourier fransform, FRT. In this paper a brief review of the methods proposed to date is presented. A measure of the strength/robustness of the level of encryption of the various techniques is proposed and a comparison is carried out between the methods. Optical implementations are discussed. Robustness of system with respect to misalignment and blind decryption are also discussed.

Item Type:	Article
Additional Information:	The authors would like to acknowledge the support of Enterprise Ireland through the Research Innovation Fund.
Keywords:	Fractional Fourier transform; optical image encryption; random phase mask; optical security;
Academic Unit:	Faculty of Science and Engineering > Computer Science Faculty of Science and Engineering > Electronic Engineering
Item ID:	5809
Depositing User:	Dr. Bryan Hennelly
Date Deposited:	10 Feb 2015 15:42
Journal or Publication Title:	Optik
Publisher:	Urban & Fischer Verlag
Refereed:	Yes
Funders:	Enterprise Ireland (EI)
URI:	http://www.urbanfischer.de/journals/opti...
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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