机载LiDAR系统在大比例尺地形成图中的应用

Airborne LiDAR's Application in Producing Large Scale Topographic Maps

机载LiDAR系统是IMU/DGPS、激光测距、数码相机、计算机控制系统的集成体,可以利用快速获取的高精度激光三维数据直接生成DEM和数字正射影像。本文基于激光点云数据、DEM、数字正射影像就LiDAR在1∶2000地形图成图方面在工程实践中进行了有益的探索,结果证明机载LiDAR系统可用于大比例尺成图。

Airborne LiDAR is composed of IMU/DGPS system,laser ranger,digital camera and computer control system.DEM and Digital Orthophoto can be directly produced with the 3D data that LiDAR acquired quickly.This paper based on laser point cloud data,DEM and Orthophoto actively research how to use LiDAR to generate 1∶2000 topographic maps in an actual project.The final measurement result testifies the airborne LiDAR suits creating large scale topographic maps.