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用于交通监控或区域安防监控的主动近红外摄像机是微光夜视系统的一个重要应用,作用距离是它重要的性能指标和进行系统设计的主要依据。针对主动近红外成像系统的设计与分析需要,利用照明等效的原理设计了一种用于评价主动近红外成像系统作用距离的测试系统,用于判定系统对给定距离上的目标的探测能力。利用测试系统对主动近红外摄像机进行了检测,验证了测试系统的有效性。结合光电成像理论和约翰逊准则,给出了一种安防监控行业评价主动近红外摄像机作用距离的评价准则和方法。
An active near-infrared camera used for traffic monitoring or regional security monitoring is an important application of the glimmering night vision system. Its acting distance is its important performance index and the main basis for system design. Aiming at the design and analysis of active near infrared imaging system, a test system for evaluating the active distance of active near infrared imaging system is designed based on the principle of illumination equivalence, which is used to determine the detection ability of the system to a target at a given distance . The active near infrared camera was tested by the test system, which verified the validity of the test system. Combined with the theory of photoelectric imaging and Johnson criterion, this paper gives a evaluation criterion and method for evaluating the range of active NIR cameras in security monitoring industry.