摘要
非视域成像可对视域外场景进行重建成像。与传统成像不同,其将隐藏场景返回的间接信号导入重建算法实现目标场景重建,在国防、生物医学、自动驾驶、航空航天及灾后搜救等领域具有重要的应用价值。总结近年来国内外对非视域成像技术的研究进展,依次介绍3种非视域成像模式,包括基于飞行时间的非视域成像、基于相干信息的非视域成像(含基于散斑图案和空间相干两种方法)、基于强度信息的非视域成像。基于相干信息和强度信息成像模式的硬件参数、重建算法、重建时间和图像分辨率等的特点和存在的局限性,分析并讨论非视域成像的发展趋势。
Non-line-of-sight imaging can reconstruct images of scenes outside the line-of-sight.Different from traditional imaging,it imports the indirect signal returned from the hidden scene into the reconstruction algorithm to realize the reconstruction of the target scene,which is important in the fields of national defense,biomedicine,automatic driving,aerospace,and post-disaster search and rescue.This paper summarizes the research progresses of non-line-of-sight imaging technology,and introduces three non-line-of-sight imaging modes,including non-line-of-sight imaging based on time-of-flight,and non-line-of-sight imaging based on coherent information(including speckle pattern and spatial coherence methods),and non-line-of-sight imaging based on intensity information.Focusing on the characteristics and limitations of hardware parameters,reconstruction algorithms,reconstruction time,and image resolution of coherent information and intensity information imaging modes,the development trend of non-line-of-sight imaging is analyzed and discussed.
作者
章镇宇
石岩
戴晟昕
占春连
赵天琦
金尚忠
Zhang Zhenyu;Shi Yan;Dai Shengxin;Zhan Chunlian;Zhao Tianqi;Jin Shangzhong(College of Optical and Electronic Technology,China Jiliang University,Hangzhou 310018,Zhejiang,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2023年第14期1-11,共11页
Laser & Optoelectronics Progress
基金
浙江省重点研发计划资助项目(2021C01068)。
关键词
非视域成像
飞行时间
相干成像
强度成像
散射成像
non-line-of-sight imaging
time-of-flight
coherence imaging
intensity imaging
diffraction imaging
