基于环境减灾小卫星数据的森林火灾迹地检测算法研究.pdf

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基于环境减灾小卫星数据的森林火灾
迹地检测算法研究
魏然①,刘良明①,曹庭进②,周正①
武汉大学遥感信息工程学院武汉四川省第一测绘工程院四川
(①, 430079;②, 630100)
摘要:森林火灾迹地是森林火灾的基本描述因子之一,是评估森林火灾严重程度的重要资料。本文基于环境
减灾小卫星数据的特性提出将指数作为火灾迹地检测指数为了降低利用单幅影像进行火灾迹地检测时
, GEMI ;
云污染现象对检测精度造成的影响构建时序指数合成方法并进一步提出适用于环境减灾小卫星数据的
, GEMI ;
基于时序合成影像的火灾迹地检测算法最后将算法应用于年月发生在中国黑龙江的森林火灾
GEMI ; , 2009 4 ,
检测结果表明该算法能准确地反映出森林火灾过火区域。
关键词火灾迹地环境减灾卫星
: ; ;GEMI
doi:.1000-
中图分类号文献标识码文章编号
:TP79 :A :1000-3177(2012)120-0062-05
A Study of Algorithm of Forest Fire Burn Scar Detection
Based on HJ Satellite Data
WEI Ran①,LIU Liang-ming①,CAO Ting-jin②,ZHOU Zheng①
(① School of Remote Sensing and Information Engineering,Wuhan University,Wuhan 430079;
② First Surveying and Mapping Engineering Institute of Sichuan Province,Sichuan630100)
Abstract:Forest fire burn scar is one of the basic description factors of forest fire and important information to assess the
intensity of forest on the features of HJ satellite data,this paper proposed GEMI as the burn scar detection
order to reduce impact on detection accuracy which is caused by cloud contamination when using single image,a time series GE-
MI images synthesis method is constructed;applying to HJ satellite data,a burn scar detection algorithm based on posed
GEMI image has also been ,a case study is carried ou