大气与环境光学学报 ›› 2021, Vol. 16 ›› Issue (2): 81-87.

• 大气光学 •    下一篇

基于视频图像的能见度计算方法研究


蔡 熠1, 杨卓敏2, 张 智2, 方蔚恺1, 余东升1, 张战盈1, 杨 喆1, 徐赤东1∗   

  1. 1 中国科学院合肥物质科学研究院安徽光学精密机械研究所基础科学研究中心, 安徽 合肥 230031; 2 公安部交通管理科学研究所, 江苏 无锡 214151
  • 收稿日期:2020-05-15 修回日期:2020-12-29 出版日期:2021-03-28 发布日期:2021-03-28
  • 通讯作者: E-mail: xcd@aiofm.ac.cn E-mail:xcd@aiofm.ac.cn
  • 作者简介:蔡 熠 (1990 - ), 安徽合肥人, 博士, 助理研究员, 主要从事大气辐射和大气遥感方面的研究。 E-mail: caiyi@aiofm.ac.cn
  • 基金资助:
    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)

Research on Visibility Calculation Method Based on Video Image

CAI Yi1, YANG Zhuomin2, ZHANG Zhi2, FANG Weikai1, YU Dongsheng1, ZHANG Zhanying1, YANG Zhe1, XU Chidong1∗   

  1. 1 Centre for Basic Science, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China; 2 Traffic Management Research Institute of the Ministry of Public Security, Wuxi 214151, China
  • Received:2020-05-15 Revised:2020-12-29 Published:2021-03-28 Online:2021-03-28

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。

关键词: 能见度, 视频图像, 暗通道, 相关系数

Abstract: 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.

Key words: visibility, video image, dark channel, correlation coefficient

中图分类号: