高光谱遥感图像在资源勘探、航天侦察、环境监测等领域获得广泛应用，尤其是在机密级军事侦察上展现出巨大的应用价值。但目前就高光谱图像在存储和传输中的安全性而言，几个关键性问题尚待突破，即(不限于)高维数据庞大导致计算效率较低、二维图像信息和光谱维度信息同步加密受限、光场中不同波段的光学计算成像切换效率低等。本项目旨在充分利用光信息处理的高速并行运算以及多维度设计等特点，开展高光谱图像在Gyrator变换域上的快速高维度光学加密技术研究，探索高维度数据在光场中的实时调制成像技术并开展相应的光学实验。针对光学实验中不同波段光学计算成像实时切换效率低的问题，拟设计可与空间光调制器协同作业的自适应可变光阑，实现高光谱图像的实时多波段成像。在光学实验基础上，设计基于无线网络的高光谱数据实时加密传输和认证方案，进一步推动光学信息安全技术在实际工程问题中的应用。

Hyperspectral remote sensing has been widely used in the fields of resource exploration, aerospace remote sensing, and environmental monitoring. Especially, it has shown immeasurable application value in confidential military reconnaissance. However, as far as the security of hyperspectral images in storage and transmission is concerned, several key issues have yet to be broken through. Firstly, the low calculation efficiency due to the high-dimensional image data. Subsequently, the two-dimensional image information and spectral information are hard to encrypt synchronously. Finally, the switching efficiency is low for the different wavelength images in light field. This project aims to make full use of the high-speed parallel computing and multi-dimensional design of optical information processing to carry out research on fast high-dimensional optical encryption technology for hyperspectral images in the Gyrator transform domain, including the synchronous optical encryption schemes for image data and spectral data with high security performance. Besides, the corresponding optical experiments are made to demonstrate the robustness and security of the proposed schemes. An adaptive variable diaphragm which can work automatically with spatial light modulator is designed to enhance the switching efficiency for the different wavelength images in light field. Based on the optical encryption experiments, a real-time encrypted transmission and authentication scheme of hyperspectral data based on wireless network is designed, which promotes the application of optical information security technology.