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(Authors): 张西童;李永强;毛杰;李有鹏;黄腾达;
DOI: 10.16251/j.cnki.1009-2307.2016.08.023
参考文献(References):
- [1]徐文学,杨必胜,魏征,等.多标记点过程的LiDAR点云数据建筑物和树冠提取[J].测绘学报,2013,42(1):51-58.
- [2]张齐勇,岑敏仪,周国清,等.城区LiDAR点云数据的树木提取[J].测绘学报,2009,38(4):330-335.
- [3]WU B,YU B,YUE W,et al.A voxel-based method for automated identification and morphological parameters estimation of individual street trees from mobile laser scanning data[J].Remote Sensing,2013,5(2):584-611.
- [4]李永强,杨莎莎,李框宇,等.车载激光扫描数据中杆状地物提取[J].测绘科学,2015,40(8):42-46.
- [5]LIANG X,KUKKO A,KAARTINEN H,et al.Possibilities of a personal laser scanning system for forest mapping and ecosystem services[J].Sensors,2014,14(1):1228-1248.
- [6]张恒,许君一,刘如飞,等.一种基于改进区域增长的行道树点云提取方法[J].测绘科学技术学报,2015,32(2):178-182.
- [7]杨莎莎,李永强,李框宇,等.基于车载LiDAR数据的单株树提取[J].测绘工程,2014,23(8):23-27.
- [8]FORSMAN P,HALME A.3-D mapping of natural environments with trees by means of mobile perception[J].IEEE Transactions on Robotics,2005,21(3):482-490.
- [9]UNGER D R,HUNG I,BROOKS R,et al.Estimating number of trees,tree height and crown width using Lidar data[J].Giscience&Remote Sensing,2014,51(3):227-238.
- [10]MAAN G S,SINGH C K,SINGH M K,et al.Tree species biomass and carbon stock measurement using ground based-LiDAR[J].Geocarto International,2015,30(3):293-310.
- [11]MONNIER F,VALLET B,SOHEILIAN B.Trees detection from laser point clouds acquired in dense urban areas by a mobile mapping systemmobile mapping system[J].Remote Sensing and Spatial Information Sciences(ISPRS Annals),2012(25):245-250.
- [12]吴宾,余柏蒗,岳文辉,等.一种基于车载激光扫描点云数据的单株行道树信息提取方法[J].华东师范大学学报:自然科学版,2013(2):38-49.
- [13]韦雪花,王佳,冯仲科.北京市13个常见树种胸径估测研究[J].北京林业大学学报,2013,35(5):56-63.
- [14]房华乐,林祥国,段敏燕,等.面向对象的车载LiDAR点云滤波方法[J].测绘科学,2015,40(4):92-96.
- [15]南京林业大学.中国林业辞典[M].上海:上海科学技术出版社,1994.