A diffraction model of direction multiplexing method for hiding multiple images
A diffraction model of direction multiplexing method for hiding multiple images
复制标题
多图像隐藏的方向复用方法的衍射模型
DOI：
10.1080/09500340.2014.922632
复制
发表时间：
2014
影响因子：
1.3
通讯作者：
Liu Shutian
中科院分区：
文献类型：
--
作者：
Liu Zhengjun;Tan Jiubin;Liu Wei;Wu Jingjing;Wu Qun;Liu Shutian
球面（或柱面）被认为是光学系统中的观察平面。几个原始图像被放置在球体（或圆柱体）上的不同方向。提出了两个倾斜平面间的衍射模型，建立了由两个图像表示的光场的传播关系方程。利用两束光的干涉作用，在两个纯相位掩模中隐藏一个秘密图案。系统的几何参数（方向和距离）可以用作增强安全性的附加密钥。为了验证多重加密方案的性能，进行了数值仿真。
Spherical surface (or cylinder) is considered to be regarded as the observing plane in an optical system. Several original images are placed at different directions on a sphere (or cylinder). The diffraction model between two slant planes is proposed to construct the propagation relation equation of the light field expressed by two images. The interference of two optical beams is used for hiding a secret pattern into two phase-only masks. The geometric parameters of the system (orientation and distance) can serve as an additional key for enhancing security. The numerical simulation results are made in order to validate the performance of the multiple encryption schemes.