利用距离复用实现多幅图像的同步加密

为了同步加密多张图像，实现数据高效、安全的加密传输，提出了以衍射距离为复用参数，将多幅图像同步记录到一张全息图中。加密过程的同步性是基于光学全息扫描技术（Optical Scanning Holography, OSH）实现的。利用计算全息实现OSH，对多幅图像进行一次性扫描和加密。在解密过程中，利用逆问题建模，通过正则化求解重建多幅图像，完成多图像同步提取。数值实验部分，验证了该算法的可行性和鲁棒性。实验分析部分，展示了算法较好的重建质量及较高的安全性。

Multiple-Image Simultaneous Encryption by Position Multiplexing

In order to achieve multiple-image simultaneous encryption for an efficient transmission of secured data, the paper employs the position multiplexing and records multiple images into a hologram by computer generated holography based on the optical scanning holography (OSH). The decryption is modeled into an inverse problem. This paper utilizes a regularization in solving the inverse problem so as to extract images simultaneously with edge preserved. Numerical experiments demonstrate the feasibility of the algorithm and the robustness to image destruction. The subsequent analysis of the experiments investigates the image quality and security of the algorithm.