车载激光扫描数据的道路边界线提取方法  

Extraction of Road Boundary from Vehicle Laser Scanning Data

作　　者：满丹 王慧[1] 李烁[1] 薛意盟 王重阳[1] MAN Dan;WANG Hui;LI Shuo;XUE Yimeng;WANG Chongyang(Information Engineering University,Zhengzhou 450001,China)

机构地区：[1]信息工程大学,河南郑州450001

出　　处：《测绘科学技术学报》2017年第6期612-616,共5页Journal of Geomatics Science and Technology

摘　　要：鉴于城市道路两侧具有路坎这一特点,结合车载激光扫描系统的轨迹数据将整体点云进行分块处理,从每一块点云中截取部分数据投影到相应的截面上;然后,对获取的截面数据进行分割处理提取伪扫描线,根据路坎的坡度以及高差特点从伪扫描线中识别出路坎点;最后,利用三次样条插值的方法对提取的道路路坎点进行插值处理,得到道路边界线。实验证明了该方法的可行性和有效性。The data in vehicle laser scanning system were processed in blocks using the trajectory data due to the curbs along most roads in city.Part of the point cloud within each block were projected onto the profile.Then the curb points were extracted from the pseudo scan line which was acquired from the profile point cloud.Finally,the cubic spline interpolation method is used to interpolate the extracted road curb points to obtain the road boundary line.Experiments show that this method is feasible and effective.

关 键 词：车载激光扫描系统 轨迹数据 伪扫描线 路坎点 道路边界线 

分 类 号：P237[天文地球—摄影测量与遥感]