In order to increase the capacity of encrypted information and reduce the loss of information transmission, a three-dimensional ( 3D ) scene encryption algorithm based on the phase iteration of the angular spectrum domain is proposed in this paper. The algorithm, which adopts the layer-oriented method, generates the computer generated hologram by encoding the three-dimensional scene. Then the computer generated hologram is encoded into three pure phase functions by adopting the phase iterative algorithm based on angular spectrum domain, and the encryption process is completed. The three-dimensional scene encryption can improve the capacity of the information, and the three-phase iterative algorithm can guarantee the security of the encryption information. The numerical simulation results show that the algorithm proposed in this paper realized the encryption and decryption of three-dimensional scenes. At the same time, it can ensure the safety of the encrypted information and increase the capacity of the encrypted information.

中文翻译：

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基于角谱域相位迭代算法的三维场景加密算法

为了增加加密信息的容量并减少信息传输的损失，提出了一种基于角谱域相位迭代的三维场景加密算法。该算法采用面向层的方法，通过对三维场景进行编码来生成计算机生成的全息图。然后，采用基于角谱域的相位迭代算法，将计算机生成的全息图编码为三个纯相位函数，从而完成了加密过程。三维场景加密可以提高信息的容量，而三相迭代算法可以保证加密信息的安全性。数值仿真结果表明，本文提出的算法实现了三维场景的加密和解密。同时，可以保证加密信息的安全性，增加加密信息的容量。