基于三维激光扫描技术的单木生长监测研究  

Research on Single Wood Growth Based on 3D Laser Scanning Technology Monitoring

作　　者：邓梓杰 喜文飞 刘鑫 李帅 DENG Zijie;XI Wenfei;LIU Xin;LI Shuai(Faculty of Geography,Yunnan Normal University,650500,Kunming,PRC;61206 Troops,100042,Beijing,PRC;96608 Troops,471000,Luoyang,Henan,PRC)

机构地区：[1]云南师范大学地理学部,昆明650500 [2]61206部队,北京100042 [3]96608部队,河南洛阳471000

出　　处：《江西科学》2022年第5期902-905,共4页Jiangxi Science

基　　金：云南省科学技术厅面上项目(202001AT070059);云南省自然科学基金重点项目(202101AS070019)。

摘　　要：植被是生态系统的重要组成部分,树木因子是监测植被生长的重要参数,通过传统手段获取树木因子的方法效率较低。因此,探索一种准确、高效、快速的树木因子提取方法是目前研究的重点。三维扫描技术可以快速获取树木的点云数据,利用点云数据可以获取树木的生长因子,监测植被的生长。提出了一种基于最小二乘法提取树木因子的方法,该方法可以从点云中提取出单个树木的因子参数,通过对树木因子参数的对比分析获取植被的生长状况。结合实例验证,利用2016年和2021年的点云数据进行分析,该单木胸径每年的生长率为8 mm/a,该技术对监测树木生长具有很好的应用价值。Vegetation is an important part of the ecosystem,and tree factor is an important parameter for monitoring vegetation growth.The efficiency of obtaining tree factor by traditional means is low.Therefore,to explore an accurate,efficient and fast method for tree factor extraction is the focus of the current research.Three-dimensional scanning technology can quickly obtain the point cloud data of trees,and use the point cloud data to obtain the growth factors of trees and monitor the growth of vegetation.In this paper,a tree factor extraction method based on least square method is proposed,which can extract factor parameters of individual trees from point cloud,and obtain the growth status of vegetation by comparing and analyzing tree factor parameters.Combined with the example verification and the analysis of point cloud data in 2016 and 2021,the annual growth rate of DBH of this single tree is 8 mm,which has a good application value for monitoring tree growth.

关 键 词：树木因子 三维激光扫描仪 点云数据 最小二乘法 

分 类 号：P237[天文地球—摄影测量与遥感]