潮滩植被调查最佳波段组合研究

以TM影像为遥感数据信息源,使用FieldSpec3 Hi-Res便携式地物波谱仪采集研究区内典型地物的光谱数据,IDL程序设计语言为开发工具,编程实现了遥感影像的统计特征计算。将遥感影像按照地物类别进行分区,从遥感影像的统计特征入手,结合典型地物的光谱特征分析和遥感数据定量分析的方法,在上海崇明东滩展开了波普特性和波段组合的试验研究。经过分析及反复试验将TM3赋予红色波段、TM5赋予绿色波段、TM4赋予蓝色波段,不同植被类型可由绿色色调加以区分,对于潮滩植被调查效果较好。

Study on the Best Band Combination for Investigation of Tidal Vegetation

With TM images as the RS data sources,FieldSpec3 Hi-Res portable spectrometer was used to collect and study the spectrum data of typical ground objects in the area,with IDL programming language as the development tools,we woked out the calculation of the statistical characteristics of remote sensing images.The remote sensing images were partitioned according to the types of ground objects,a experimental research of a combination of pop features and waveband in Chongming Dongtan of Shanghai was carried out by the method of remote sensing image analysis of statistical characteristics and quantitative analysis of spectrum data.After analysis and repeated experiments,TM3 was given to the red waveband,TM5 was the green waveband,and TM4 blue waveband,different types of vegetation could be distinguished by the green hue,and it was better for the vegetation of tidal flat.