基于激光雷达点云数据的单木树冠体积测量方法

Measurement Method of Single Tree Crown Volume Based on Lidar Point Cloud Data

在多功能林业发展的背景下,树冠参数逐渐成为了林业调查中的重要因子。树冠体积作为树冠参数中的一个三维数据量,不仅在传统林业中被广泛利用,在其他领域的研究中也起着重要作用。由于树冠形状不规则且结构复杂,传统的森林调查方法和手段很难准确及快速获取树冠体积。近年来,激光雷达扫描技术在林业上的推广应用为准确获取树冠体积提供了一个有效的途径。文章介绍了用于树冠体积计算的激光雷达点云数据的种类,并重点分类和总结了常见的方法,最后分析了各方法的优势和局限性。

With the development of multi-functional forestry,canopy parameters have gradually become an important factor in forestry investigation.As a three-dimensional data volume of tree crown parameters,tree crown volume is not only widely used in traditional forestry,but also plays an important role in other fields.Due to the irregular shape and complex structure of the crown,it is difficult to obtain the crown volume accurately and quickly by traditional forest survey methods and means.In recent years,the popularization and application of lidar scanning technology in forestry has provided an effective way to accurately obtain the crown volume.This paper introduces the types of Lidar point cloud data used for tree crown volume calculation,and focuses on the classification and summary of common methods.Finally,the advantages and limitations of each method are analyzed.