【摘要】 设计和实现了一个用于车载激光扫描点云处理的交互式建模系统.其原理是:在真实建筑物激光扫描数据的基础上,通过RANSAC实现自动化点云几何特征提取预处理,采用交互引导的方式辅助特征提取,采用随机算法计算边界特征,并通过构建多边形边界邻接图,计算建筑物几何模型.除特征提取外,涉及到的计算都是实时的.与传统处理方法相比,该系统具有速度快、精度高等优点.更多还原

【Abstract】 The interactive modeling system for point cloud process is designed and implemented in this paper.Based on mobile laser scanning data for buildings,RANSAC is used to detect the geometry feature from the point cloud automatically,and interactive method is applied to complete the feature detection.Boundary feature is calculated based on random algorithm and the building model is generated from adjacency graph for the polygons.Most of the operations are real-time except the feature detection,so the modeling system presented in this paper is more of effectiveness and accuracy compared with the conventional ones.更多还原