移动激光扫描数据的道路标线自动提取Automatic extraction of road markings from mobile laser scanning data
马浩,裴智惠,李婷婷
摘要(Abstract)：
针对道路标线三维矢量数据难以高效精确获取的问题,该文提出了一种从移动激光扫描数据中自动提取道路标线的新方法。基于平缓路面这个假设,利用邻域高程一致性的判断方法提取地面点。将地面点根据轨迹数据分割成多组剖面,对每个剖面上的点云进行强度直方图统计,找到强度值有突变的点。以此为种子点通过强度值区域生长以得到完整的标线,利用点云模板匹配的方法剔除错误点集。最后对标线点云进行矢量化得到三维矢量线。通过城市中大约2km长的移动激光点云数据的实验,证明本文提出的方法在提取道路标线方面能得到较好的结果。
关键词(KeyWords)： 移动激光扫描数据;提取;道路标线;激光强度;区域生长;模板匹配
基金项目(Foundation):
作者(Author): 马浩,裴智惠,李婷婷
DOI: 10.16251/j.cnki.1009-2307.2019.06.032
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