目标板反射对图像法测量能见度的误差分析  

Error Analysis of Target Board Reflection for Visibility Measurement by Image Method

作　　者：王敏 庄志豪 王康 周树道[2] 张阳春 WANG Min;ZHUANG Zhi-hao;WANG Kang;ZHOU Shu-dao;ZHANG Yang-chun(School of Electronic and Information Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China;College of Meteorology and Oceanography, National University of Defense Technology, Nanjing 211101, China)

机构地区：[1]南京信息工程大学电子与信息工程学院,南京210044 [2]国防科技大学气象海洋学院,南京211101

出　　处：《科学技术与工程》2021年第18期7657-7662,共6页Science Technology and Engineering

基　　金：国家自然科学基金(41775165,41775039)。

摘　　要：大气能见度对航空、航海、路上交通、军事活动等有重要的影响。图像法测量能见度是应用较为广泛的一种方法,但常用的目标物由于本身颜色和表面存在反射使得能见度测量存在一定误差。针对人工目标黑板表面存在反射影响能见度探测精度的问题,通过选取不同基线长度与固定的天空背景亮度,分析人工目标板固有视亮度比在存在不同误差时对能见度测量误差的影响,为日后对人工目标板进行结构改进奠定理论基础,以期提高利用图像法测量大气能见度的精度。Atmospheric visibility plays an important role in aviation,navigation,road traffic,and military activities.Image method is one of the most widely used methods in visibility measurement,however,the color and reflection of the target board surface affects the detection accuracy of visibility.An error analysis of target board reflection for visibility measurement when there were different errors in the inherent visual brightness ratio was proposed,through selecting different baseline length and fixing sky background brightness.It lays a theoretical foundation for the structure improvement of the target board in the future,for improving the accuracy of the visibility measurement by image method.

关 键 词：能见度 气象光学视程 亮度对比度 固有视亮度比 误差 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]