摘要
本文以TM遥感影像为数据源,以安徽省淮南市为研究区,在分析研究区几种典型地物光谱特征的基础上,利用KT_3+TM_2>TM_4+TM_3模型提取淮南市水体信息,实验结果表明,该模型(KT3+TM_2>TM4+TM_3)对小面积水体信息提取效果欠佳,有很少一部分的小面积水体信息没有被提取出来。从整体上来看,对大面积水体信息的提取采用此方法最为有效。在使用TM影像制作研究区水体信息统计图时,可利用此方法对影像进行处理,以期达到相应的精度要求,从而满足对淮南市水体信息统计制图的要求。
Taking TM images as data,and the Huainan city of Anhui Province as the study area,water body information is extracted by using the method of multiple bands（ KT3＋ TM2〉 TM4＋ TM3） through analyzing spectral characters of typical objects at different bands. It is not so good for small area water,a few of small area water have not been extracted. On the whole,it is the most effective method to extract the information of large area water. When TM images are used to make the statistics of water body information in the research area,this method can achieve the corresponding accuracy requirements for producing the statistical water mapping of Huainan city.
出处
《工程勘察》
2018年第3期64-67,共4页
Geotechnical Investigation & Surveying
基金
云南省高校工程研究中心建设计划资助
