车载LiDAR点云相连行道树精细分割Segmentation of connected street trees from mobile LiDAR data
张西童,李永强,毛杰,李有鹏,黄腾达
摘要(Abstract)：
针对车载激光雷达获取的行道树树冠点云相连问题,该文提出了基于树木生长模型的距离加权分割方法。首先通过等距原则将相连树粗分割为单株树木,采用求差和拟合算法获得树木高度、胸径等属性信息;再根据树木的理论和实际生长模型,计算得到树冠距离加权值;最后在此基础上对树冠进行迭代处理,实现邻接行道树点云的精确分割。经过不同树种试验验证,该算法能够实现对多棵相连树点云的进一步精确分割。
关键词(KeyWords)： 车载LiDAR;点云;行道树分割;生长模型
基金项目(Foundation): 测绘地理信息公益性行业科研专项经费项目(201412020);; 国家十二五科技支撑项目(2012BAH34B00)
作者(Author): 张西童,李永强,毛杰,李有鹏,黄腾达
DOI: 10.16251/j.cnki.1009-2307.2016.08.023
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