机载激光雷达森林参数估算方法综述

综述了机载激光雷达(LiDAR)在森林树高、郁闭度、蓄积量等参数估算中的应用,并对森林参数的估算精度及其影响因素进行了总结和分析。重点总结了目前机载激光雷达在森林参数估算中采用的如基于几何特性的点云数据滤波方法、基于强度信息森林参数提取方法、全波形数据的处理方法及L iDAR与多光谱影像数据融合关键技术,阐述了其现状及各自应用范围和存在的问题。

Review of Methods for Forest Parameter Estimation with LiDAR

This paper summarizes the application of forest parameter estimation with the airborne laser radar,such as tree height,canopy density,growing stock,biomass and so on.Accuracy of forest parameters estimated and its influencing factors is summarized and analyzed.The key technologies are summarized about forest parameters estimated based on airborne laser radar data,such as methods of filtering points cloud based on geometric characteristics of LiDAR data,methods for forest parameters estimated based on the intensity information,methods of processing the full-wave form LiDAR data and fusion technique between LiDAR data and multi-spectral imaging.The paper described their status,scopes of their application and problems.