机载LiDAR数据的城区树木点提取方法A spatial distribution pattern-based urban tree points extraction method in airborne LiDAR
程晓光;黄先锋;张帆;
摘要(Abstract):
在城区的机载LiDAR点云中一般存在大量打在树木上的点,从点云中提取的树木点可以应用于城区绿化面积和树木参数的估计,以及树木的建模。针对城区环境,本文在综合分析树木点和其他地物空间分布模式的基础上,提出了一种只利用点云的几何性质,结合点云空间分布模式来提取树木点的方法。实验表明,该方法可以取得很高的分类精度,卡帕系数为0.9713。
关键词(KeyWords): 机载LiDAR;点云分类;树木;空间分布模式
基金项目(Foundation): 973项目(2011CB707001);; 自然基金项目(41001308,41071291);; 测绘遥感信息工程国家重点实验室专项科研经费
作者(Authors): 程晓光;黄先锋;张帆;
DOI: 10.16251/j.cnki.1009-2307.2014.03.013
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