复杂采空区三维散乱点建模技术研究及应用  

Research and Application of Three-Dimensional Scattered Points Modeling Technology in Complex Cavity

作　　者：黄俊杰[1] 罗周全[1] 秦亚光[1] 张文芬[1] 

机构地区：[1]中南大学资源与安全工程学院,湖南长沙410083

出　　处：《东北大学学报（自然科学版）》2016年第12期1784-1788,共5页Journal of Northeastern University(Natural Science)

基　　金："十二五"国家科技支撑计划项目(2012BAK09B02-05);国家自然科学基金资助项目(51274250)

摘　　要：以采空区三维激光扫描系统探测获取的原始数据为依据,针对复杂采空区散乱点云数据,研究提出运用一组等间距的垂直于包围盒走向方向的平行切割面,对散乱点云进行区域划分进而构建空区实体模型的方法.首先确定等间距平行切割面的方向和间距,对散乱点云数据进行划分;其次运用最小距离法确定散乱点云的位置即所归属的切割面;最后运用凸包最小距离法对每个切割面上的散乱点进行排序,成为有序点后对其进行建模.应用表明,研究所形成的建模方法可实现对复杂采空区散乱点云的精确建模.Aiming at scattered data,a set of equally spaced cutting face in vertical direction of maximum bounding box was used to segment scattered point cloud,and the method of cavity three-dimensional model was proposed by taking cavity three-dimensional laser scanning system to obtain original data as the basis. The direction and pitch of parallel cutting surface was determined firstly to divide and cut scattered point cloud. Then the location of scattered point cloud which is in cutting surface was determined by the minimum distance method. Finally,scattered points were sorted through convex hull the minimum distance method,and it was modeled after becoming ordered points. Applications showscattered points modeling algorithm of complex cavity is accurate,which can be realized in complicated scattered point cloud modeling.

关 键 词：复杂采空区 散乱点 剖面线 三角剖分 凸包算法 

分 类 号：TD76[矿业工程—矿井通风与安全]