当前位置: 首页 > 文章 > 基于单站三维激光扫描数据的林木胸径提取方法 浙江林业科技 2019 (2) 87-91
Position: Home > Articles > 基于单站三维激光扫描数据的林木胸径提取方法 Journal of Zhejiang Forestry Science and Technology 2019 (2) 87-91

基于单站三维激光扫描数据的林木胸径提取方法

作  者:
柯敏;解静;刘昔
单  位:
天津水运工程勘察设计院天津市水运工程测绘技术重点实验室
关键词:
三维激光扫描;单站点云数据;胸径测量;最小二乘圆拟合
摘  要:
2018年4月以天津市滨海新区海滨大道临港工业区段西侧约1 km绿化段为试验区域,通过地面三维激光扫描仪获取单站点云数据,基于最小二乘圆拟合算法,利用LISP语言编制程序对林木胸径值进行自动提取,再通过现场抽测39株'107杨'Populus*euramericana'74/76'和65株刺槐Robiniapseudoacacia树对计算结果进行精度统计.结果表明,'107杨'计算中误差为0.8cm,刺槐计算中误差为0.7cm,整体计算中误差为0.7 cm,整体计算中误差<1 cm.表明采用最小二乘圆拟合算法对单站点云数据进行胸径计算,效率更高、精度可靠,可应用于实际工程项目中.
作  者:
KE Min;XIE Jing;LIU Xi;Tianjin Survey and Design Institute for Water Transport Engineering, Tianjin Key Laboratory of Surveying &Mapping Technology for Waterway Engineering;
单  位:
KE Min%XIE Jing%LIU Xi%Tianjin Survey and Design Institute for Water Transport Engineering, Tianjin Key Laboratory of Surveying &Mapping Technology for Waterway Engineering
关键词:
3D laser scanner;;point cloud data of single station;;DBH measurement;;least-square circle fitting
摘  要:
Experiment was carried out on extraction by 3 D laser scanner of single station in April, 2018 at greening belt about 1 km long in Lingang Industrial Area of Tianjin, and obtained cloud data was programed by LISP language based on the least-square circle fitting algorithm to automatically extract tree DBH. Determination was implemented on DBH of 39 Populus euramericana ‘74/76' and 65 Robinia pseudoacacia for accuracy estimation. The results showed that root mean square error of P. euramericana ‘74/76' was 0.8 cm, that of R. pseudoacacia was 0.7 cm, and the overall root mean square error was 0.7 cm.

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