基于面组合投票的地面站点云配准方法  

A Registration Method for TLS Based on Patches Combination and Voting

作　　者：周桐 梁福逊[1] 杨必胜[1] 

机构地区：[1]武汉大学测绘遥感信息工程国家重点实验室,湖北武汉

出　　处：《测绘科学技术》2017年第3期106-118,共13页Geomatics Science and Technology

基　　金：国家科技支撑项目,编号2014BAL05B07。

摘　　要：地面站三维激光扫描在工程测量,三维重建,文物保护等领域发挥越来越重要的作用。地面激光扫描仪由于视角和遮挡的问题,必须通过多站采集拼接的方式获取数据,故配准是必不可少的步骤。文章提出了一种自动化激光点云配准方案,从点云中提取面片,通过面组合和最佳投票的方法计算转换参数,并自动完成多站点云的坐标转换与输出。经实验证实,本文的配准方法能够稳健且高效地完成城市环境点云的配准,有很好的实用价值。Terrain Laser Scanning (TLS) plays an important role in engineering survey, 3D reconstruction and cultural relics preservation. The way laser scanner acquiring point cloud data must be several stations attaching because of views interruption, therefore, registration of point cloud is necessary. This article put forward an automatic registration method for TLS, extracts patches in point cloud firstly, counting transform parameters using patches combination and voting, and output the transformed point cloud automatically in the end. Experiments shows that our method can finish the registration of multiple-station city environment TLS robustly and efficiently, which makes the method useful in practice.

关 键 词：激光扫描 配准 面片 组合 投票 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]