利用机载LiDAR快速测绘山区地形地貌的应用探讨

Application of airborne LiDAR in rapid mapping of mountain terrain and landform

本文介绍了现有机载激光点云滤波和分类算法,利用包含多种地物特征的复杂山体设计检测实验,对该技术应用于复杂山区地形测绘的实测精度进行检核,研究了基于加密不规则三角网点云滤波算法相关参数对地面点提取的影响,分析了该技术应用于山区快速高精度地形地貌测绘的可行性。

This paper introduces the existing filtering and classification algorithms of airborne laser point cloud data,and the detection experiment is designed by using complex mountain with various features.The accuracy of this technology in complex mountainous terrain are verified.The method based on encryption irregular triangle points cloud filter algorithm is studied,and the influence of related parameters setting on final ground point extraction and the feasibility of using this technology for fast high accuracy topography surveying and mapping are analysed.