基于激光点云的输电杆塔坐标提取方法

Extraction Method of Transmission Towers Based on Laser Point Cloud

激光点云数据在输电线路中逐渐应用频繁,从冗杂的数据中提取输电杆塔坐标具有一定难度。文章首先通过均匀下采样大大降低点云数量,然后采用DBSCAN算法过滤噪声点,粗提取出杆塔,最后过滤地面点精提取输电杆塔坐标。本文的杆塔提取方法高效便捷,提取效果较好,有助于后续无人机用于杆塔精细化巡检的三维航迹规划。

Laser point cloud data is increasingly used in transmission lines,and it is difficult to extract transmission pole coordinates from complex data.This paper first greatly reduces the number of point clouds through uniform down-sampling,then uses the DBSCAN algorithm to filter noisc points,roughly cxtracts towcrs,and finally filtcrs ground points to fincly cxtract transmission tower coordinates.The pole extraction method in this article is efficient and con-venient,and has good extraction results,which is helpful for subsequent three-dimensional traj-ectory planning of UAVs for refined inspection of poles and towers.