• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2015, Vol. 37 ›› Issue (07): 1325-1330.

• 论文 • 上一篇    下一篇

基于FY-3A/VIRR数据的雪盖信息提取软件设计与实现

张永宏1,2,曹庭2,任伟2,田伟3,王剑庚4,杨润芝5,卢晶6   

  1. (1.南京信息工程大学气象灾害预报预警与评估协同创新中心,江苏 南京 210044;
    2.南京信息工程大学信息与控制学院,江苏 南京 210044;3.南京信息工程大学计算机与软件学院,江苏 南京 210044;
    4.南京信息工程大学大气物理学院,江苏 南京 210044;5.国家气象信息中心,北京 100081;
    6. 美国俄克拉荷马州立大学计算机科学系,美国 俄克拉荷马 74078)
  • 收稿日期:2014-08-29 修回日期:2014-11-04 出版日期:2015-07-25 发布日期:2015-07-25
  • 基金资助:

    国家自然科学基金重大研究计划资助项目(91337102)

Software design and implementation of snow
cover extraction based on FY-3A/VIRR data  

ZHANG Yonghong1,2,CAO Ting2,REN Wei2 ,TIAN Wei3,WANG Jiangeng4,Yang Runzhi5,LU Jing6   

  1. (1.Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters,
    Nanjing University of Information Science & Technology,Nanjing 210044,China;
    2. School of Information and Control,Nanjing University of Information Science & Technology,Nanjing 210044,China;
    3.School of Computer Science & Technology,Nanjing University of Information Science & Technology,Nanjing 210044,China;
    4.School of Atmospheric Physics,Nanjing University of Information Science & Technology,Nanjing 210044,China;
    5.National Meteorological Information Center,Beijing 100081,China;
    6.Department of Computer Science,Oklahoma State University,Oklahoma 74078,USA)
  • Received:2014-08-29 Revised:2014-11-04 Online:2015-07-25 Published:2015-07-25

摘要:

目前基于FY-3A/VIRR资料的处理研究较少且VIRR数据量庞大,一些商用遥感图像处理软件很难直接完成对图像的预处理工作,这样对后续的定量化反演以及对FY-3A/VIRR的推广使用带来了困难。为了解决业务化问题,运用改进的归一化积雪指数(NDSI)、综合阈值判别算法和IDL、VB混合编程技术相结合的方法设计了积雪信息批量提取软件,实现了针对FY-3A/VIRR数据的单幅图像或多幅图像的积雪信息提取以及精度验证。实验表明,该软件处理速度快、实时性好、可批量提取积雪信息,大大节省了人力资源,同时提高了VIRR数据的分发和共享能力,可以在今后的工业生产和自动化领域推广使用。

关键词: FY-3A/VIRR, 预处理, 积雪信息提取, 批量提取

Abstract:

So far little research has been carried out on the process of FY3A/VIRR data which has a huge amount of data.Current commercial remote sensing image processing softwares can not accomplish the preprocessing work directly.So it brings great difficulties in subsequent image processing and the spread of FY3A/VIRR data. In order to solve this problem,we combine a modified normalized difference snow index (NDSI) and the comprehensive threshold method with IDL and VB mixed technology,and design a snow information batch extraction software.We achieve the snow information extraction and accuracy validation of a single image or multiple images for FY3A/VIRR data.Experimental results show that the proposed software is fast and realtime,and it can do batch extraction of snow information,thus saving great human resources and improving the ability of dispatching and sharing the VIRR data. It can be extended in industrial production and automation in the future.

Key words: FY-3A/VIRR;pre-processing;snow information extraction;batch extraction