许凯达, 金伟其, 刘敬, 裘溯, 田训卿. 基于激光距离选通成像的非视域成像应用[J]. 红外与激光工程, 2012, 41(8): 2073-2078.
引用本文: 许凯达, 金伟其, 刘敬, 裘溯, 田训卿. 基于激光距离选通成像的非视域成像应用[J]. 红外与激光工程, 2012, 41(8): 2073-2078.
shu
Xu Kaida, Jin Weiqi, Liu Jing, Qiu Su, Tian Xunqing. Non-line-of-sight imaging based on laser range-gated imaging technology[J]. Infrared and Laser Engineering, 2012, 41(8): 2073-2078.
Citation: Xu Kaida, Jin Weiqi, Liu Jing, Qiu Su, Tian Xunqing. Non-line-of-sight imaging based on laser range-gated imaging technology[J]. Infrared and Laser Engineering, 2012, 41(8): 2073-2078.
shu

基于激光距离选通成像的非视域成像应用

Non-line-of-sight imaging based on laser range-gated imaging technology

    摘要
  • 摘要: 非视域成像是国外近几年出现的一种新的成像模式，能够绕过拐角对难以直接观察的场景 进行成像。介绍了基于激光距离选通成像技术的非视域成像模式，给出了国外的几个典型非视域成像 实验及其结果。搭建了基于532 nm 激光器和ICCD 探测器的距离选通成像系统，以窗户玻璃和墙面 瓷砖作为中介反射面，分别获得了50m和20 m处目标的非视域图像。实验结果表明，非视域成像的 效果与中介反射面的反射特性有关，许多具有一定镜面反射特性的建筑材料均可作为中介反射面，用 于非视域成像；非视域成像模式在城市巷战、公安侦察以及抗灾救援等领域展现出潜在的应用前景， 是一种具有发展前景的新型光电成像模式。

     

    Abstract: Non-line-of-sightimagingisanewkindofimagingmoderecentlyproposedbyforigncountries, whichcanlookaroundcornersandbeyondthelineofsight.Inthispaper,theconceptofnon-line-of-sight imagingmodebasedonlaserrange-gatedimagingtechnologywasillustrated,someforeigntypical experimentsandexperimentresultsofitwerealsopresented.Then,therange-gatedimagingset-upinthe laboratory,employing532nmNd:YAGpulsedlaserandintensifiedchargecoupleddevice(ICCD),was utilizedtogetnon-line-of-sightimagesthroughthereflectionofglasswindowandceramictilewall. Experimentswerecarriedoutwithadistanceof50mand20mrespectively.Analysisoftheresultantimages showsthatthefeasibilityofnon-line-of-sightimagingisrelatedtothereflectionpropertiesofthereflection media,thatis,mediawithspecularreflectiontoacertainthresholdcanbeusedinnon-line-of-sightimaging. Finally,non-line-of-sightimagingtechnologywillbeanewpromisingopticalimagingmode,showinga potentialapplicationinurbanstreetfighting,publicsecurityreconnaissance,disasterrelief,andsoon.

     

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