基于地面三维激光扫描技术的公路路线设计参数提取  

Parameter Extraction of Highway Route Based on 3-d Laser Scanning Technology

作　　者：王鑫森[1] 孔立 郑德华[1] 

机构地区：[1]河海大学地球科学与工程学院,南京210098 [2]邗江测量服务所,扬州225100

出　　处：《科学技术与工程》2013年第7期1884-1888,共5页Science Technology and Engineering

基　　金：中央高校基本科研业务费专项资金(2010B08414);河海大学自然科学基金(2009423811);江苏省交通科学研究计划项目(09Y08)资助

摘　　要：将三维激光扫描仪应用于公路测量,通过控制点云采集的参数来优化点云密度分布,采用基于四元数的ICP算法进行配准,提高配准精度。运用局部点离群算法完成点云去噪,得到高质量的公路路面点云,为后续设计参数的提取工作提供了可靠的数据源。最后运用点云边界点识别算法准确提取了公路边界线,并进一步生成了公路中心线及各项路线设计参数。实验表明结果完全满足后续施工设计的需要。3-D laser scanner is applied to highway survey, the point cloud density is optimized by the control of point cloud acquisition parameters, improved the accuracy of registration using ICP algorithm based on quaternion, and got rid of noise points with the algorithm of local outlier. Thus, the highway pavement point cloud of high quali- ty is got, which can be provided as reliable data source for the follow-up design parameter extraction. Then, the road boundary lines and center lines are extracted with an edge detection algorithm and finally the design parameters are computed. Experiments show that the results fully meet the needs of the subsequent construction design.

关 键 词：三维激光扫描 路线设计参数 ICP算法 点云配准 边界识别 

分 类 号：U412.241[交通运输工程—道路与铁道工程]