土地利用变更的遥感应用分析

The Study on Land Use Change Information Obtainment based on Remote Sensing

发现变化区域和变更类型是土地利用变更信息提取的主要任务 ,随着遥感技术的发展 ,土地利用变化信息提取的方法趋向于结合高分辨率的卫星影像和现有的影像处理方法来产生变化信息模板。本文全面总结分析了土地利用变更信息获取的技术和方法 ,并在此基础上进一步研究了基于 RS和 GIS技术的土地利用变更信息获取技术方法 ,以及高分辨率遥感影像在土地利用变更信息提取中的应用分析。

To identify the land use change region and the change type is the main purpose of the change information obtainment.With the development of remote sensing, we can use high-resolution image and method that have developed to obtain land change information.There are basically two classifications for the methodology that have put forward, that is Post-classification Comparison Method and Pixel to Pixel Comparison Method or Pre-classification Change Detection Method.This paper gives an overall analysis of the techniques and methodology for obtaining land use change information, then, it studies the automatic classification and compares the accuracy of the result. Furthermore it studies the methodology for obtaining land use change information based on Remote Sensing and Geographic Information System, and analyzes the application of the high-resolution image.Finally the paper points out that the most urgent issue is to set up spectral knowledge base of the land surface objects and the expert knowledge base,mine information from GIS database or remote sensing data itself,and explore new analytical method of remote sensing image for the realization of fast,accurate and automatical classification and obtainment of land use change information using remote sensing image.