中南大学学报（自然科学版）2012，Vol.43Issue(2)：588-595,8.
地质体的三维形态分析方法与应用
Three-dimensional morphological analysis method for geologic bodies and its application
摘要
Abstract
For the spatial analysis of complex geological bodies in stereoscopic quantitative prediction of concealed ore bodies, a new method of three-dimensional morphological analysis for geologic bodies based on 3D raster model was put forward by combining mathematical morphology with Euclidean distance transformation theory. The algorithm for extracting the surface shape trend of geologic body was proposed by using open-close filter and close-open filter of mathematical morphology. By combination of morphological filtering, Euclidean distance transforming, and global set operation, the models for the quantitative analysis and hierarchical extraction of the shape undulance were established. By means of the calculation model of Euclidean distance field, an approach for extracting the angle parameter between the geologic body surface and its trend surface was acquired. After building the 3D raster models of the geologic bodies, a case study of the three-dimensional morphological analysis method was applied in analyzing quantitatively the Xinwuli magmatic body in Fenghuangshan ore field in Tongling, Anhui Province, and the quantitative extraction of the quantitative indexes of geological ore-controlling factors was achieved. The results show that the morphological analysis method for geologic bodies can be used to calculate various morphological parameters of geological bodies, to extract quantitative indexes of geologic ore-controlling factors successfully, and it plays an important role in stereoscopic quantitative predication of concealed ore bodies.关键词
地质体/三维形态分析/数学形态学/欧氏距离变换Key words
geologic body/ 3D morphological analysis/ mathematical morphology/ Euclidean distance transform分类
天文与地球科学引用本文复制引用
毛先成,唐艳华,邓浩..地质体的三维形态分析方法与应用[J].中南大学学报（自然科学版）,2012,43(2):588-595,8.基金项目
国家自然科学基金资助项目(41172297) （41172297）
国家“十一五”科技支持计划项目(2006BAB01B07) （2006BAB01B07）
