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Optical Engineering

Three random phase encryption technology in the Fresnel diffraction system based on computer-generated hologram
Author(s): Si-xing Xi; Xiaolei Wang; Xin Sun; Shengjiang Chang; Lie Lin
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Paper Abstract

We propose a new method of image encryption using Fourier computer-generated hologram (CGH) in the encryption system of multiple Fresnel diffraction transforms with phase masks. The digital image to be encrypted is modulated by a series of three random-phase masks in Fresnel diffraction system and finally is transformed into a complex-amplitude image which is stationary white noise (in which the information is like stationary-white-noise). Because the complex-amplitude information is not easy to be directly saved, the binary real value Fourier CGH is applied to record it. Compared with the traditional double random-phase image encryption technology, this method adds new keys which enhance the image encryption security and the Fourier CGH greatly improves the antinoise performance.

Paper Details

Date Published: 3 September 2013
PDF: 7 pages
Opt. Eng. 53(1) 011004 doi: 10.1117/1.OE.53.1.011004
Published in: Optical Engineering Volume 53, Issue 1
Show Author Affiliations
Si-xing Xi, Nankai Univ. (China)
Xiaolei Wang, Nankai Univ. (China)
Xin Sun, Qingdao Univ. (China)
Shengjiang Chang, Nankai Univ. (China)
Lie Lin, Nankai Univ. (China)

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