基于ENVI的景观生态类型遥感解译与分类

基于研究区2001、2005、2009年的Landsat5TM遥感影像数据,运用G IS与ENVI技术手段,在对遥感影像的边界裁定、几何校正、辐射校正等预处理的基础之上,根据小流域景观生态类型分类体系,通过综合应用非监督分类、监督分类以及类型叠加与图像整合等方法,进行小流域景观生态类型的遥感解译与分类,生成研究区2001、2005、2009年的景观生态类型图。为尽可能利用到遥感影像的所有原始数据信息,采用非监督分类与监督分类相结合的方法参与景观分类,不仅能够发现新的信息,而且也会明显提高小流域景观生态类型的遥感解译与分类能力。

Interpretation of Remote Sensing and Classification of Landscape Ecological Types based on ENVI

To make full use of GIS and ENVI technology,boundary determination,geometric correction,radiometric correction and other preprocessing for remote sensing images according to classification system of small watershed landscape ecological types which is based on the Landsat5 TM data of study area in the year of 2001,2005 and 2009.It was classified and interpreted for the watershed landscape ecology type through the integrated application of unsupervised classification,supervised classification,overlay and image integration method,generated in the study area landscape ecological type maps.As much as possible to using all the original data in the remote sensing images,it takes use of the unsupervised classification and the supervised classification method together in the classification.It is not only to discovery the new information,but also improved the interpretation and classification capabilities of small watershed landscape ecological types significantly.