西乌珠穆沁典型草原遥感分类方法的比较分析

Comparison and Analysis of Classification Methods used in West Ujimqin Typical Steppe remote sensing

针对西乌珠穆沁典型草原2012年8月30米分辨率的ETM多光谱遥感影像数据,采用不同分类方法进行监督分类,对不同分类器在典型草原遥感影像分类中的应用效果和分类精度进行评价与比较。针对典型草原退化分类问题探究几种不同典型草原遥感分类方法的优劣,从中挑选出最适用的典型草原退化的遥感分类方法。并通过先验知识和野外调查数据,对分类结果进行分析,通过总体分类精度、混淆矩阵和Kappa系数对几种分类器的精度进行评价和比较。

Based on the ETM muhispectral remote sensing image of West Ujimqin Typical Steppe with the resolution of 30meters on August 2012, this research classified the image date by using several supervised classification methods. And evalu-ated and compared the classification effect and accuracy of each classification method. Aimed at classifying the typical steppedegradation, investigated the merit and demerit of each classification methods, chose the optimized classification method toresearch degradation of typical steppe. Then used the priori knowledge and the field investigation data to analyze the classifi-cation results, evaluated and compared the classification accuracy through the overall classification accuracy, confusion matrixand Kappa coefficient.