基于空间轮廓线的高质量矿体表面三维重构方法  

A Method for High Quality Orebody Surface 3D Reconstruction Based on Space Contours

作　　者：谭正华[1,2] 谭姣月 潘梅[1] 王李管[2] 

机构地区：[1]湘潭大学信息工程学院,湖南湘潭411105 [2]中南大学数字矿山研究中心,湖南长沙410083

出　　处：《黄金科学技术》2017年第2期96-103,共8页Gold Science and Technology

基　　金：湖南省自然科学基金项目"井巷工程三维信息模型构建方法研究"(编号:14JJ3077)资助

摘　　要：为解决因数据量少或建模信息不完整造成的矿体表面粗糙、不精确等问题,提出了一种高质量的基于空间轮廓线的矿体表面三维建模方法。具体建模步骤如下:首先根据地层属性和高程,对轮廓线的空间交点进行一致性校验,并进行拓扑预处理;其次建立结点—路径网络拓扑关系,采用内层路径优先的搜索算法提取空间网格;最后采用生成过渡轮廓线的方法,对空间网格进行单独建模并无缝拼接成完整的矿体表面模型。研究结果表明:该方法简化了用户操作、提高了建模效率,生成的表面模型更符合实际情况。In order to solve the problems of surfhce roughness and inaccuracy of orebody caused by the incompletion of modeling information or few data, a high quality 3D modeling method based on space contours was proposed.The specific modeling steps are as follows：First, according to the stratum properties and elevation to check consistency of space contours intersection and topology preprocessing.Yhen,the topology relationship between node and path network was built and the space gird of the spatial contours was extracted with the inner path first search algorithms.At last, the separate model for space grid was constructed by adopting the method of generation the transition contours, a complete surface model of the orebody was formed by seamless splicing the reconstructed space grid.The research results show that this method can simplify the operation of users, improve the efficiency of modeling, and surface model generated more realistic.

关 键 词：三维表面重构 空间轮廓线 结点—路径拓扑关系 空间网格 

分 类 号：TD67[矿业工程—矿山机电]