一种基于地物波谱特征的最佳波段组合选取方法  

A method of the best band combination selection based on spectral characteristics of surface features

作　　者：武文波[1] 刘正纲[1] 

机构地区：[1]辽宁工程技术大学测绘与地理科学学院,辽宁阜新123000

出　　处：《测绘工程》2007年第6期22-24,33,共4页Engineering of Surveying and Mapping

基　　金：高等学校博士学科点专项科研基金项目(20050147002);辽宁省自然科学基金项目(20042175)

摘　　要：对多光谱数据选取最佳的波段组合,是图像解译和专题信息提取的重要前提。文中提出一种基于地物波谱特征的最佳波段组合选取方法,即综合考虑方差、相关系数、OIF指数和地物间的可分离性4个因素,利用ERDAS和EXCEL等工具进行各指标的解算,并通过实验,选择红菱矿区1995年的TM多光谱影像为数据源,选取了基于水体波谱特征的最佳波段组合TM345。经定性分析和定量计算,验证了该方法的可行性。It is an important prerequisite for image interpretation and thematic information extraction by selecting the best band combination of multi-spectral data. It presents a method of the best band combination based on the spectral characteristics of surface feature. Variance, correlation coefficient, the OIF index and the separability between surface features are comprehensively taken into consideration. The indices by using ERDAS and EXCEL tools are calculated. It selects the TM multi-spectral images of the Hongling mining area in 1995 as data sources, and selects the best band combination TM345 based on water spectroscopic characteristics through experiments. The feasibility of the method is demonstrated through qualitative analysis and quantitative calculation.

关 键 词：地物波谱特征 最佳波段组合 相关系数 OIF指数 

分 类 号：TP751[自动化与计算机技术—检测技术与自动化装置]