%0 Journal Article
%T Six Security Key For Image Encryption Based on Anamorphic Fractional Fourier Transform<br>基于变形分数傅里叶变换的六重密钥图像加密
%A WANG Hong-xia
%A ZHAO Wei
%A LIU Chang-wen
%A ZHANG Yu
%A LIU Hao-chun
%A <br>王红霞
%A 赵玮
%A 刘长文
%A 张瑜
%A 刘皓淳
%J 光子学报
%D 2007
%I 
%X A new optical image encryption method using anamorphic fractional Fourier transform and double random phase encoding is proposed.In this method,the image is transformed two times with anamorphic fractional Fourier transform and modulated two times by random phase function in the original image plane and the fractional domain separately.The number of security keys is increased from two to six,so the security intensity can be improved greatly.This encryption and decryption method can be implemented by optical system using HOE.The digital computation experiment showed only when the six security keys are exactly right,can the original image be reconstructed.
%K Information optics
%K Anamorphic fractional Fourier transform
%K Double random phase encoding
%K Image encryption<br>信息光学
%K 变形分数傅里叶变换
%K 双随机相位编码
%K 图像加密
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=C1E87F25D3F99FA08585EC97EC7F3994&yid=A732AF04DDA03BB3&vid=933658645952ED9F&iid=E158A972A605785F&sid=61000B595C9AE527&eid=1CBB73E9593E8833&journal_id=1004-4213&journal_name=光子学报&referenced_num=0&reference_num=15