点云数据多站拼接在水利工程测绘中的应用  

Application of Multi-station Registration of Point Clouds Data in Hydraulic Engineering Surveying and Mapping

作　　者：张永光[1] 刘豪杰[1] 尹小磊[1] 刘朋俊[1] 

机构地区：[1]黄河勘测规划设计有限公司,河南郑州450003

出　　处：《华北水利水电学院学报》2013年第3期74-77,共4页North China Institute of Water Conservancy and Hydroelectric Power

摘　　要：常用的点云数据拼接方法均存在不同程度的误差,最近点迭代算法可实现点云数据多站自动拼接,提高拼接精度.为了分析该拼接方法应用于水利工程测绘中的有效性和可行性,以某调水工程大坝坝址边坡1∶500地形图测绘为例,采用Riegl VZ 1000地面激光扫描仪,采取在野外现场实地扫描和GPS RTK实测地形特征点相结合的作业方案,结合其自带的Riscan Pro软件,统计同名点拼接后的高程差值.结果表明,该拼接方法可以满足《水利水电工程测量规范》(规划设计阶段)(SL 197—97)对于1.0 m等高距地形图高程精度的要求.There are errors to varying degrees in the common registration methods of point clouds data, while the lterative Closest Point （ICP） algorithm can achieve multi-station automatic registration and improve the registration accuracy. Thus, this method is applied to the hydraulic engineering surveying and mapping and its effectiveness and feasibility is analyzed. Taking 1 ： 500 topographic mapping of a water diversion dam site slope as an example, using Riegl VZ 1000 terrestrial laser scanner and adopting the combined program of field scanning and GPS RTK measuring terrain feature points, the differences of elevations are counted after the registration of the points with the same names by the Riscan Pro software. The results show that the method can meet the elevation accuracy requirements of the topographic map which the contour interval is 1.0 m in the Water Resources and Hydropower Engineering Measurement Specification （ the planning and design stage） （ SL 197 - 97）.

关 键 词：三维激光扫描 点云数据 多站拼接 ICP算法 水利工程测绘 

分 类 号：P217[天文地球—测绘科学与技术]