Random fractional Fourier transform

被引:119
作者
Liu, Zhengjun [1 ]
Liu, Shutian [1 ]
机构
[1] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China
关键词
D O I
10.1364/OL.32.002088
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We propose a novel random fractional Fourier transform by randomizing the transform kernel function of the conventional fractional Fourier transform. The random fractional Fourier transform inherits the excellent mathematical properties from the fractional Fourier transform and can be easily implemented in optics. As a primary application the random fractional Fourier transform can be directly used in optical image encryption and decryption. The double phase encoding image encryption schemes can thus be modeled with cascaded random fractional Fourier transformers. (C) 2007 Optical Society of America.
引用
收藏
页码:2088 / 2090
页数:3
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