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多光学测试设备光轴不一致性测量计算的研究 被引量:12
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作者 鬲滨 刘朝晖 侯年仓 《科学技术与工程》 2007年第21期5539-5543,共5页
介绍了一种用于室外检测多光学测试设备光轴一致性的测试系统。通过对多个光学测试设备光轴一致性进行分析,采用图像采集、存储、计算的方法计算出三台光学测试仪器在光学跟踪平台上安装时的光轴一致性测试结果。系统采用带卤钨灯做发... 介绍了一种用于室外检测多光学测试设备光轴一致性的测试系统。通过对多个光学测试设备光轴一致性进行分析,采用图像采集、存储、计算的方法计算出三台光学测试仪器在光学跟踪平台上安装时的光轴一致性测试结果。系统采用带卤钨灯做发光光源的标准靶板为瞄准基准,两次在不同的位置距离上分别采集光谱辐射计、中波及长波红外热像仪各自的靶心图像,进行靶心瞄准时的脱靶量计算,将脱靶量折算为角度。多光轴不一致性是一个空间光学问题,红外测试设备涉及一个光谱计和两台热像仪,一共三个轴,三个光轴彼此都平行时认为光轴是一致的。三个光轴两两之间存在夹角的话,认为多光轴是不一致的。由于种种条件因素限制,多光轴绝对一致是不可能的,总会存在一定的夹角,即不一致性。文中要求在测量时调节三台仪器的光轴不一致性使其能够达到不超过48″的技术指标。根据数据测得三台光学测试仪器的光轴不一致性为9.181″的结果。 展开更多
关键词 光轴一致性 光学测试设备 图像 靶板
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AI-driven Fourier Ptychography and Its Insight for“AI+Optics”(Invited)
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作者 PAN An WANG Aiye +4 位作者 FENG Tianci GAO Huiqin WANG Siyuan XU Jinghao LI Xuan 《光子学报》 北大核心 2025年第9期146-170,共25页
Fourier Ptychographic Microscopy(FPM)is a high-throughput computational optical imaging technology reported in 2013.It effectively breaks through the trade-off between high-resolution imaging and wide-field imaging.In... Fourier Ptychographic Microscopy(FPM)is a high-throughput computational optical imaging technology reported in 2013.It effectively breaks through the trade-off between high-resolution imaging and wide-field imaging.In recent years,it has been found that FPM is not only a tool to break through the trade-off between field of view and spatial resolution,but also a paradigm to break through those trade-off problems,thus attracting extensive attention.Compared with previous reviews,this review does not introduce its concept,basic principles,optical system and series of applications once again,but focuses on elaborating the three major difficulties faced by FPM technology in the process from“looking good”in the laboratory to“working well”in practical applications:mismatch between numerical model and physical reality,long reconstruction time and high computing power demand,and lack of multi-modal expansion.It introduces how to achieve key technological innovations in FPM through the dual drive of Artificial Intelligence(AI)and physics,including intelligent reconstruction algorithms introducing machine learning concepts,optical-algorithm co-design,fusion of frequency domain extrapolation methods and generative adversarial networks,multi-modal imaging schemes and data fusion enhancement,etc.,gradually solving the difficulties of FPM technology.Conversely,this review deeply considers the unique value of FPM technology in potentially feeding back to the development of“AI+optics”,such as providing AI benchmark tests under physical constraints,inspirations for the balance of computing power and bandwidth in miniaturized intelligent microscopes,and photoelectric hybrid architectures.Finally,it introduces the industrialization path and frontier directions of FPM technology,pointing out that with the promotion of the dual drive of AI and physics,it will generate a large number of industrial application case,and looks forward to the possibilities of future application scenarios and expansions,for instance,body fluid biopsy and point-of-care testing at the grassroots level represent the expansion of the growth market. 展开更多
关键词 Computational optical imaging Fourier ptychography Artificial Intelligence Highthroughput imaging Multimodal imaging
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亚像元动态成像技术中系统的调制传递函数 被引量:4
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作者 车双良 汶德胜 +1 位作者 李轶 张兴社 《应用光学》 CAS CSCD 2002年第3期42-44,共3页
亚像元动态成像技术是国际上目前实现遥感器小型化非常有效的新方法 ,因而研究亚像元动态成像系统的调制传递函数 (MTF)显得非常必要和重要。本文分析亚像元动态成像系统的 MTF模型 ,并给出亚像元动态成像系统
关键词 亚像元动态成像 CCD 调制传递函数 遥感器 小型化 图像处理 模型 MTF
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