三峡库区基于概念格算法的遥感岩性分析

Analysis of Lithology with Remote Sensing Image Based on Concept Grid Algorithm in Three Gorges

我国广大南方地区,岩石上部覆盖着较厚的土壤和茂密的植被,因此在南方地区开展的有关遥感岩性分析的相关研究较少,尚无成熟的方法可循。针对三峡库区这一地形复杂、地质灾害频繁、土壤植被发育的地区进行遥感影像岩性分析,提出了一种增量式概念格构造算法,采用像素邻域的统计特征,构造光谱、纹理、植被覆盖3类指标集,根据大量统计分析,对指标集作合理量化,挖掘出T1j2(嘉陵江组二段)的岩性关联规则。

Three Gorge possesses the characters of complicated terrain, frequent geologic disasters and full- grown vegetation and soil. In the paper we made analysis of lithology with a remote sensing image aiming at the area of Three Gorge, proposed a gradual concept grid algorithm, built three sorts of guideline sets of spectrum,texture and vegetation index and mined the associated rules of the lithology in T1j^2.