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光电跟踪仪低对比度目标捕获能力检验方法研究

Testing of Low-Contrast Target Acquisition for Photoelectric Tracker

叶露  
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摘要

提出了一种光电跟踪仪低对比度目标捕获能力检验方法。该方法采用可调对比度无穷远目标源作为检验装置,为被检光电跟踪仪提供对比度可准确度量的光学基准目标,用于检验光电跟踪仪的针对低对比度目标的捕获能力。介绍了检验装置的原理、组成和目标对比度标定方法,对检验结果进行了分析。该检验方法综合了光学系统性能、光电接收器性能、图像处理电路和软件及信噪比等各项指标对目标对比度的影响,全面真实地反映了电视跟踪仪的跟踪性能。

Abstract

A detection method for measuring the ability of opto-electronic tracker which captures low-contrast target is proposed. With infinite target source of adjustable contrast as detection device, optical reference target whose contrast can be accurately measured is provided for detected opto-electronic tracker, which is particularly used for testing acquisition ability of opto-electronic tracker for low contrast target. Principle and composition of the detection device, calibration method for target′s contrast are introduced, and detection results are analyzed. Through the research of the detection method, it is realized to evaluate the ability that the whole opto-electronic tracker captures low contrast target. The detection method involves performance of optical system, performance of photoelectric receiver, image processing circuit, software, signal-to-noise ratio and related indexes which influence target contrast, which reflect tracking performance of television tracker all-sidedly and truthfully.

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中图分类号:V556.5

DOI:10.3788/aos201232.1115001

所属栏目:机器视觉

基金项目:中国科学院创新基金(YZ200904)资助课题。

收稿日期:2012-05-04

修改稿日期:2012-06-25

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作者单位    点击查看

叶露:中国科学院长春光学精密机械与物理研究所, 吉林 长春 130033

联系人作者:叶露(yzl7@yahoo.com)

备注:叶露(1965—),女,硕士,副研究员,主要从事光学仪器检验技术方面的研究。

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