余弦编码复用高空间分辨率关联成像研究  

Research on cosine encoded multiplexing high spatial resolution ghost imaging

作　　者：李能菲 孙宇松 黄见 LI Nengfei;SUN Yusong;HUANG Jian(Department of Mechanical and Electrical Engineering,Anhui Vocational and Technical College,Hefei 230011,China;Key Laboratory of Atmospheric Optics,Anhui Institute of Optics and Fine Mechanics,HFIPS,Chinese Academy of Sciences,Hefei 230031,China;Science Island Branch of Graduate School,University of Science and Technology of China,Hefei 230026,China;Advanced Laser Technology Laboratory of Anhui Province,Hefei 230031,China)

机构地区：[1]安徽职业技术学院机电工程学院,安徽合肥230011 [2]中国科学院合肥物质科学研究院安徽光学精密机械研究所,中国科学院大气光学重点实验室,安徽合肥230031 [3]中国科学技术大学研究生院科学岛分院,安徽合肥230026 [4]先进激光技术安徽省实验室,安徽合肥230031

出　　处：《量子电子学报》2022年第6期973-982,共10页Chinese Journal of Quantum Electronics

基　　金：中国科学院科技创新重点实验室基金,CXJJ-20S028;国家自然科学基金,U20A20214;安徽省质量工程项目(2020mooc254);安徽省高校优秀青年人才支持计划重点项目(gxyq2022130)。

摘　　要：发展了一种余弦编码复用高空间分辨率关联成像技术。首先通过构造多个低空间分辨率的余弦编码散斑复用为高空间分辨率调制散斑对目标进行调制照明,单像素探测器收集调制光与目标相互作用后产生的散射光强,由迭代算法复原出目标的混叠图像。进而鉴于余弦编码所特有的确定性频谱结构,利用数字图像处理方法高效解码重构出多个低空间分辨率物体图像,最终拼接为高空间分辨率目标图像。理论分析了余弦编码复用高空间分辨率关联成像技术实现方法,并仿真验证了该方法的有效性。本方法大幅降低了传统高空间分辨率关联成像所需的调制散斑,减少了在线采样时间与离线图像重构时间,提高了高空间分辨率关联成像的成像效率。A high spatial resolution ghost imaging technology based on cosine encoded multiplexing is demonstrated.Firstly,many low spatial resolution cosine encoded patterns are constructed and multiplexed to produce high spatial resolution modulation patterns,and then the high spatial resolution modulation patterns is used to illuminate the object.A single-pixel detector collects the backscattered light generated by the interaction between the modulated light and the object,and the mixed image of the object can be recovered by applying an iterative algorithm.Given the certain deterministic spectrum structure of the employed cosine encoded matrices,the low spatial resolution images of the object can be decoded and reconstructed efficiently using the digital image processing method,and finally spliced into high spatial resolution object images.The implementation method of the proposed cosine encoded multiplexing high spatial resolution ghost imaging is analyzed theoretically,and the effectiveness of the proposed method is verified by numerical simulation.It is shown that the proposed method greatly reduces the modulation patterns required for traditional high spatial resolution ghost imaging,reduces the online sampling time and the offline reconstruction time,and improves the imaging efficiency of high spatial resolution ghost imaging.

关 键 词：量子光学 关联成像 傅里叶变换 余弦编码复用 高空间分辨率成像 

分 类 号：O431.2[机械工程—光学工程]