Computer Engineering and Applications ›› 2008, Vol. 44 ›› Issue (35): 13-16.DOI: 10.3778/j.issn.1002-8331.2008.35.004

• 博士论坛 • Previous Articles     Next Articles

Classification rule mining of lithology by remote sensing image in Three Gorges

WANG Xian-min,NIU Rui-qing   

  1. Institute of Geophysics and Geomatics,China University of Geosciences,Wuhan 430074,China
  • Received:2008-08-21 Revised:2008-09-27 Online:2008-12-11 Published:2008-12-11
  • Contact: WANG Xian-min

三峡库区遥感岩性分类规则挖掘

王贤敏,牛瑞卿   

  1. 中国地质大学 地球物理与空间信息学院,武汉 430074
  • 通讯作者: 王贤敏

Abstract: Three Gorges is the south area in which there covers thick soil and flourish vegetation on the top of the rocks,and the lithology analysis is very difficult.There are also no mature methods on this aspect.lithology analysis is maken at the area of Three Gorges.Based on the area of object-oriented the three sorts of indexes in spectrum,texture and vegetation covering are established.By pilling the remote sensing image with the geological graph,this paper mines the classification rules in the stratums of T1j2,T1j3,T2b1 and T2b2 in Three Gorges with C5.0 algorithm and provids the important information and knowledge for intelligent classification and intepretion of lithology in Three Gorges.

Key words: remote sensing image, lithology analysis, rule, Three Gorges

摘要: 三峡库区属于南方高植被覆盖区域,岩石上部覆盖着较厚的土壤和茂密的植被,因此岩性分析比较困难,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岩性分析;采用面向对象(像素集团)的思想,构造光谱、纹理、植被覆盖三类指标集。通过将遥感影像与地质图叠加,采用决策树C5.0算法,挖掘出三峡库区嘉陵江组二段T1j2,嘉陵江组三段T1j3,巴东组一段T2b1,巴东组二段T2b2等地层的岩性分类规则,从而为三峡库区岩性的智能分类和解译提供重要的信息和先验知识。

关键词: 遥感影像, 岩性分析, 规则, 三峡