中国科学院上海光学精密机械研究所鬼成像理论研究的若干进展（特邀）

相比利用光场的一阶关联实现物空间与像空间一一对应的传统成像，鬼成像基于光场的二阶关联实现物空间与像空间的一一对应，从而获取物体图像信息。通过引入光场涨落调制和计算重构，鬼成像不仅可以具有更高的信息获取效率，而且提升了图像信息获取方式的灵活性，能够具备传统成像所不具备的成像能力。随着鬼成像在系统优化及技术应用方面的进一步发展，对鬼成像理论也提出了新的要求和挑战。文中分别从鬼成像的物理本质、图像信息获取理论及理论分辨率研究三方面介绍了中国科学院上海光学精密机械研究所近期在鬼成像理论上的若干研究工作，并对今后鬼成像的理论研究工作进行了展望。

Some research progress on the theoretical study of ghost imaging in Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences (Invited)

Compared with traditional imaging that uses the first-order correlation of light fields to realize the one-to-one correspondence between the object and image spaces, ghost imaging realizes the correspondence based on the second-order correlation of light fields and thereby obtains object’s image information. By introducing light field fluctuation modulation and computational reconstruction, ghost imaging not only has higher information acquisition efficiency, but also improves the flexibility of image information acquisition modes, thus having imaging capabilities that traditional imaging does not have. The further developments of ghost imaging in system optimization and technical applications bring new demands and challenges to ghost imaging theory. In this paper, the recent research progress of ghost imaging theory in Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences was introduced from three aspects: the physical nature, the image information acquisition theory and theoretical resolution. And the future theoretical research on ghost imaging was prospected.