论文部分内容阅读
快速准确全面地获取对象的空间信息是三维激光扫描技术的特点。本文基于三维激光扫描技术快速地采集盾构隧道的点云数据,并对其分割生成切片,提出一种多点坐标平差计算圆心的方法求取切片圆心和半径,分析隧道的收敛变化。最终通过实例证明了该方法的可行性和准确性。
Rapid and accurate access to the object’s spatial information is a feature of 3D laser scanning technology. In this paper, point cloud data of shield tunnels are collected rapidly based on 3D laser scanning technology, and slice is generated by segmentation. A method of multi-point coordinate adjustment is proposed to calculate the center and radius of slices, and the convergence of tunnel is analyzed. Finally, the feasibility and accuracy of this method are proved by examples.