A modulated sparse random matrix for high-resolution and high-speed 3D compressive imaging through a multimode fiber

作     者：Zhenyu Dong Zhong Wen Chenlei Pang Liqiang Wang Lan Wu Xu Liu Qing Yang 董震宇;文仲;庞陈雷;王立强;吴兰;刘旭;杨青

作者机构：State Key Laboratory of Modern Optical InstrumentationCollege of Optical Science and EngineeringInternational Research Center for Advanced PhotonicsZhejiang UniversityHangzhou 310027China Research Center for Intelligent SensingZhejiang LabHangzhou 311100China Collaborative Innovation Center of Extreme OpticsShanxi UniversityTaiyuan 030006China 

出 版 物：《Science Bulletin》 (科学通报（英文版）)

年 卷 期：2022年第67卷第12期

页      面：1224-1228,M0003页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(61735017,61822510,62020106002,and 62005250) the National Key Basic Research Program of China(2021YFC2401403) Major Scientific Research Project of Zhejiang Lab(2019MC0AD02) 

主　　题：采样速度 多模光纤 并行计算 压缩感知 成像参数 随机采样 狭窄空间 高保真度 

摘      要：Multimode fiber(MMF)possesses intrinsic,ultrathin,noninvasive geometric characteristics and high mode density optical characteristics,having great potential in endoscopic imaging[1,2].A typical MMF endoscopic imaging system involves a camera placed behind the fiber distal end to calibrate the transmission matrix(TM)of the fiber,and when imaging into narrow channels,such as bronchus,or performing insertion into brain tissues,the camera should be replaced by a single-pixel detector placed outside in a reflection mode to record the signal.A traditional MMF imaging system adopts the point scan mode,whose resolution is limited by the numerical aperture(NA)of the fiber,and the imaging speed is restricted by the refresh rate of the modulator and the Nyquist sampling *** need for high resolution,high speed,and three-dimensional(3D)imaging for observation of biological processes,such as neural activity,blood flow detection,and cellular dynamics,calls for original imaging approaches.