机载激光点云的精度分析及优化  

Accuracy Analysis and Optimization of Airborne Laser Point Cloud

作　　者：曲辉 蒋汪洋 QU Hui;JIANG Wangyang(The Second Institute of Photogrammetry and Remote Sensing,MNR,Harbin 150081,China)

机构地区：[1]自然资源部第二航测遥感院,黑龙江哈尔滨150081

出　　处：《测绘与空间地理信息》2022年第S01期193-196,199,203,共6页Geomatics & Spatial Information Technology

摘　　要：近年来机载激光雷达技术发展迅速,它是获取数字地形模型(DTM)和数字地表模型(DEM)的重要手段,以其高效率、高精度、低成本的特点,广泛应用于基础测绘、数字城市、灾害调查、环境监测和林业等领域,特别是应用在地形复杂且施测困难地区(如沙漠和森林)。为了提高三维激光点云数据的精度,本文主要探讨影响其精度的主要因素,以及优化方法。此方法的研究对指导机载激光雷达点云获取的生产作业具有重要意义。In recent years, airborne LiDAR technology has developed rapidly, it can directly be an important means to obtain digital terrain model(DTM) and digital surface model(DSM). Because of its high efficiency, high accuracy and low cost, it is widely used in basic surveying and mapping, digital city, disaster investigation, environmental monitoring and forestry, especially in areas with complex terrain and difficult measurement(such as deserts and forests). In order to improve the accuracy of 3 D laser point cloud data, this paper mainly discusses the main factors affecting its accuracy and optimization methods. The research of this method is of great significance to guide the point cloud acquisition of airborne LiDAR.

关 键 词：机载激光雷达 数字地形模型 数字地表模型 三维激光点云 

分 类 号：P231[天文地球—摄影测量与遥感]