单像素复振幅成像加密方案研究  

Research on Single-pixel Complex Amplitude Imaging Encryption Scheme

作　　者：张恒 ZHANG Heng(School of Information Engineering,North China University of Water Resources and Electric Power,Zhengzhou 450046,China)

机构地区：[1]华北水利水电大学信息工程学院,河南郑州450046

出　　处：《现代信息科技》2025年第3期177-182,共6页Modern Information Technology

摘　　要：在光学信息安全领域,计算鬼成像(CGI)技术作为一种新兴的单像素成像(SPI)技术,因其数据压缩和实值密文的加密性能而显示出巨大潜力。然而,现有的基于计算鬼成像的加密技术存在解密结果噪声严重、密钥数量庞大以及复振幅图像成像效果不理想等问题。为解决这些问题,文章提出了一种基于随机正交调制的单像素复振幅成像加密方案。该方案利用正交复数矩阵逆变换的方法实现了复杂复振幅物体的成像,同时使用两个随机整数序列作为密钥扰乱正交复数矩阵,从而实现对原始图像的加密。这不仅增强了系统的安全性,还大幅减少了传输密钥的数量。后续的仿真实验验证了该方案的可行性和安全性,该方案能够抵御一些常见的噪声干扰,展现出良好的鲁棒性。In the field of optical information security,Computational Ghost Imaging(CGI),as an emerging Single-Pixel Imaging(SPI)technique,shows great potential due to its data compression and encryption performance of real-valued ciphertext.However,the existing encryption techniques based on computational ghost imaging have serious noise in the decryption results,a large number of keys,and unsatisfactory imaging effect of complex amplitude images.To solve these problems,a single-pixel complex-amplitude imaging encryption scheme based on random orthogonal modulation is proposed in this paper.The scheme realizes complex complex-amplitude object imaging by using orthogonal complex matrix inversion,and at the same time uses two random integer sequences as keys to scramble the orthogonal complex matrix to realize the encryption of the original images.This not only enhances the security of the system but also greatly reduces the number of transmitted keys.Subsequent simulation experiments verify the feasibility and security of the scheme,and the scheme can resist some common noise interference and show good robustness.

关 键 词：图像加密 复振幅成像 正交矩阵 随机调制 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]