摘要
为了更加方便快捷地获取能见度并且实现对能见度的长期观测,基于暗通道先验的理论基础对于视频图像的能见度提取方法进行了分析和研究。通过对观测获得的全天不同时刻的目标图像进行亮度分析从而得到对应的大气透过率和能见度,并进一步将能见度提取结果与相同条件下实测激光雷达能见度数据进行了对比。研究结果表明,提取的能见度结果与实测数据吻合度较高,相关系数达到0.96616。
In order to obtain the visibility more conveniently and quickly and realize the long-term observation of the visibility,the visibility extraction method of the video image based on the theory of the dark channel prior is analyzed and studied.Through the brightness analysis on the target images observed at different times of the day,the corresponding atmospheric transmittance and visibility can be obtained.Furthermore,the visibility extraction results are compared with the measured lidar visibility data under the same conditions.The results show that the extracted visibility results are in good agreement with the measured data,and the correlation coefficient reaches 0.96616.
作者
蔡熠
杨卓敏
张智
方蔚恺
余东升
张战盈
杨喆
徐赤东
CAI Yi;YANG Zhuomin;ZHANG Zhi;FANG Weikai;YU Dongsheng;ZHANG Zhanying;YANG Zhe;XU Chidong(Centre for Basic Science,Anhui Institute of Optics and Fine Mechanics,HFIPS,Chinese Academy of Sciences,Hefei 230031,China;Traffic Management Research Institute of the Ministry of Public Security,Wuxi 214151,China)
出处
《大气与环境光学学报》
CAS
CSCD
2021年第2期81-87,共7页
Journal of Atmospheric and Environmental Optics
基金
道路交通安全公安部重点实验室开放课题(2019ZDSYSKFKT04)
“十三五”民用航天预研项目(D040103)。
关键词
能见度
视频图像
暗通道
相关系数
visibility
video image
dark channel
correlation coefficient
