Qin Yi, Gong Qiong
College of Physics and Electronic Engineering, Nanyang Normal University, Nanyang, China.
Appl Opt. 2013 Jun 10;52(17):3987-92. doi: 10.1364/AO.52.003987.
An approach for multiple-image encryption based on interference and position multiplexing is proposed. In the encryption process, multiple images are analytically hidden into three phase-only masks (POMs). The encryption algorithm for this method is quite simple and does not need iterative encoding. For decryption, both the digital method and optical method could be employed. Also, we analyze the multiplexing capacity through the correlation coefficient. In addition, the silhouette problem that exists in previous interference-based encryption methods with two POMs can be eliminated during the generation procedure of POMs based on the interference principle. Simulation results are presented to verify the validity of the proposed approach.
提出了一种基于干涉和位置复用的多图像加密方法。在加密过程中，多幅图像被解析地隐藏到三个纯相位掩模（POM）中。该方法的加密算法非常简单，无需迭代编码。对于解密，可以采用数字方法和光学方法。此外，我们通过相关系数分析了复用容量。另外，基于干涉原理，在POM的生成过程中可以消除以往基于双POM干涉加密方法中存在的轮廓问题。给出了仿真结果以验证所提方法的有效性。
