最佳波段选择的迁西县土地利用信息提取研究  

Research on Extraction of Land Utilization Information of Qianxi County Based on Optimum Band Selection

作　　者：马梦茹 张永彬 王奕丹 MA Meng-ru;ZHANG Yong-bin;WANG Yi-dan(College of Mining Engineering,North China University of Science and Technology,Tangshan Hebei 063210,China)

机构地区：[1]华北理工大学矿业工程学院,河北唐山063210

出　　处：《华北理工大学学报（自然科学版）》2021年第3期20-29,共10页Journal of North China University of Science and Technology：Natural Science Edition

基　　金：国家自然科学基金项目(51772098);国家自然科学基金项目(51808217);河北省自然科学基金(E2020209010)。

摘　　要：针对Landsat8-OLI影像波段间相关性高、波段信息考虑不充分的情况,分别利用OIF法和ABS法对波段初步选择,再通过计算不同地物之间的变换离散度进行不同地类的可分性度量,最后选择以上2种方法分别适合地物信息提取的最佳波段。同时利用支持向量机的方法,根据OIF法和ABS法选出的最佳波段组合对迁西县土地利用信息的分类及精度进行评价。研究结果表明:基于OIF法选择的最佳波段组合B7-B5-B4提取精度为81.404%,基于ABS法选择的最佳波段组合B7-B4-B1提取精度为90.614%。In view of the high correlation between the bands of Landsat8-OLI image and the insufficient consideration of the band information,the OIF method and ABS method were used to initially select the band,and then the transform dispersion between different features was calculated to measure the separability of different types of land.The two methods were selected to be the optimum bands suitable for the extraction of feature information.At the same time,the support band machine method was used to classify and evaluate the land use information of Qianxi County for optimum band combination selected by the OIF method and ABS method.The results show that the extraction accuracy of the optimum band combination B7-B5-B4 based on the OIF method is 81.404%,and that of the optimum band combination B7-B4-B1 based on the ABS method is 90.614%.

关 键 词：Landsat8 土地利用 最佳指数因子 自适应波段选择 变换离散度 

分 类 号：P237[天文地球—摄影测量与遥感]