Three random phase encryption technology in the Fresnel diffraction system based on computer-generated hologram

Si-xing Xi; Xiaolei Wang; Xin Sun; Shengjiang Chang; Lie Lin

doi:10.1117/1.OE.53.1.011004

3 September 2013 Three random phase encryption technology in the Fresnel diffraction system based on computer-generated hologram

Si-xing Xi, Xiaolei Wang, Xin Sun, Shengjiang Chang, Lie Lin

Author Affiliations +

Optical Engineering, Vol. 53, Issue 1, 011004 (September 2013). https://doi.org/10.1117/1.OE.53.1.011004

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.

Citation Download Citation

Si-xing Xi, Xiaolei Wang, Xin Sun, Shengjiang Chang, and Lie Lin "Three random phase encryption technology in the Fresnel diffraction system based on computer-generated hologram," Optical Engineering 53(1), 011004 (3 September 2013). https://doi.org/10.1117/1.OE.53.1.011004

Published: 3 September 2013

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