基于时序控制的赝热光鬼成像系统  

Sequence-Controlled Pseudothermal Optical host Imaging System

作　　者：宗岩峰 郑淮斌[1] 吴鑫伟 李经纬[1] 邱龙 韩聿源 Zong Yanfeng;Zheng Huaibin;Wu Xinwei;Li Jingwei;Qiu Long;Han Yuyuan(Electronic Materials Research Laboratory,Key Laboratory of the Ministry of Education&International Center for Dielectric Research,School of Electronic Science and Engineering,Xi'an Jiaotong University,Xi'an 710049,Shaanci,China)

机构地区：[1]西安交通大学电子科学与工程学院电子陶瓷与器件教育部重点实验室,国际电介质研究中心,陕西西安710049

出　　处：《光学学报》2023年第7期48-57,共10页Acta Optica Sinica

基　　金：陕西省创新团队项目(2018TD-024);陕西省重点研发计划重点产业创新链(群)-工业领域(2019ZDLGY09-10);中央高校基本科研业务费专项资金资助(xzd022020008)。

摘　　要：设计开发了用于赝热光鬼成像的时序可控系统,该系统能对赝热光鬼成像系统硬件进行精准的同步控制,从而对散斑尺寸和采样次数等影响成像质量的因素进行定量分析,实现不同条件下的高质量成像。同时在鬼成像系统中结合差分鬼成像、归一化鬼成像和正负关联成像,针对正负关联算法重构图像提出了二次优化方案,进一步提升了赝热光鬼成像系统的成像质量。通过实验验证了系统的时序控制性能和算法的优化效果。Objective Since its inception,ghost imaging technology has drawn wide interest and has been reported in many application scenarios due to its advantages,including strong anti-scattering capacity,lens-free imaging,and off-object imaging.In practice,however,ghost imaging technology still struggles with a number of fundamental issues,such as reliable signal recognition and quick imaging in challenging situations.These requirements call for more sophisticated algorithms,as well as hardware design and control.In this study,we design and develop a sequence-controlled ghost imaging system on the basis of the pseudothermal light ghost imaging technology scheme,which can achieve high-quality imaging under various conditions by precisely controlling the main components of the system.Apart from the fundamental correlation imaging algorithm,this system presents three more imaging algorithms,namely,dfferential ghost imaging,normalized ghost imaging,and positive-negative correlation imaging.A secondary optimization scheme for the images reconstructed by the positive-negative correlation algorithm is proposed to further improve the imaging quality.For the development of ghost imaging systems for a larger range of applications and more complicated situations,we hope that our system can serve as a model.Methods In this paper,the sequence control capability of the ghost imaging system and the algorithm's optimization impact on the imaging quality are demonstrated through comparison tests.Figure 1(a)is the schematic diagram of the pseudothermal light ghost imaging system.Figure 1(b)is the GUI interface of the system,through which the operations of the system can be directly controlled,such as the position of the displacement platform,the speed of the ground glass,the sampling times,and the imaging algorithm.The synchronous control of the system and the control of the electric displacement platform are realized by the control unit while the signal acquisition is completed.In addition,the differential ghost imaging,normalized ghost i

关 键 词：成像系统 鬼成像系统 同步控制 成像算法 成像质量 

分 类 号：O436[机械工程—光学工程]