| 基于单站三维激光扫描数据的林木胸径提取方法 |
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| 引用本文： | 柯敏,解静,刘昔.基于单站三维激光扫描数据的林木胸径提取方法[J].浙江林业科技,2019(2):87-91. |
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| 作者姓名： | 柯敏 解静 刘昔 |
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| 作者单位： | 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 |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项基金项目(TKS180405) |
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| 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1km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0.7cm,整体计算中误差<1cm。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。
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| 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 |
Extraction Method of DBH based on 3D Laser Scanner of Single Station |
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| KE Min,XIE Jing,LIU Xi.Extraction Method of DBH based on 3D Laser Scanner of Single Station[J].Journal of Zhejiang Forestry Science and Technology,2019(2):87-91. |
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| Authors: | KE Min XIE Jing LIU Xi |
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| Institution: | (Tianjin Survey and Design Institute for Water Transport Engineering,Tianjin Key Laboratory of Surveying &Mapping Technology for Waterway Engineering,Tianjin 300456,China) |
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| Abstract: | 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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| Keywords: | 3D laser scanner point cloud data of single station DBH measurement least-square circle fitting |
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