ETM和SPOT融合影像制作土地利用分类图

以辽阳地区为试验区,采用ETM多波段和SPOT全色遥感影像为主要信息源。利用遥感图像处理软件ERDAS对影像进行几何配准、图像增强等一系列处理。利用HIS变换和主成分分析法进行影像融合试验,对比分析融合结果,融合后影像同时具有多光谱和高分辨率的特性,提高了影像解译度。参考国家分类标准,选取农村、水体、旱地、林地、菜地、城市和水田七大类进行分类试验。采用监督分类的方法对主成分变换融合后的影像进行土地利用分类。最后,在ArcGIS软件中进行矢量化处理,制作土地利用分类图。使用该方法制作的辽阳地区土地利用分类图,可以满足一般用户对土地利用分类图的要求。

Land Use Classification Map Production Based on ETM and SPOT Fusion Image

Taking Liaoyang region as the experimented area and using multi-frequency band ETM and SPOT panchromatic remote sensing image as the main source of information,this paper processes image using geometric registration and image enhancement function of ERDAS remote sensing image processing software,experiments on image fusion using HIS transformation and principal component analysis methods.It is concluded through the comparison and analysis of fusion results that the resulting image of fusion is characterized by multi-spectrum,high resolution and improved image interpretation.This paper also experiments on seven main categories of land including village,water body,dry land,woodland,city,and marshy field referring to national standard,categorizes lands in the resulting image of principal component transformation using supervised classification method,vectorizes the resulting image in ArcGIS software,and produces land use classification map.The land use classification map of Liaoyang region produced in this way can meet the requirement of land use of common users.