基于CityMapper-2L的高精度地表点云快速获取研究

Fast acquisition of accurate ground points cloud based on CityMapper-2L

航空机载测量设备CityMapper-2L是对激光测量和倾斜摄影测量等技术的高度利用和集成,为高精度地理信息数据获取提供了重要装备保障。本文对CityMapper-2L测量设备进行介绍,并以胶东半岛机载激光雷达(LiDAR)点云数据获取为例,从飞行设计、安置参数确定、精密轨迹解算和航带点云生产等关键技术出发,分析和验证了该设备在获取大范围地表点云时的精准性与高效性。

CityMapper-2L,an airborne hybrid surveying equipment,shows a highly integration and utilizization of the technology of laser surveying and oblique photogrammetry,it will provide important equipment support for accurate geographic information data acquisition.This paper introduces the CityMapper-2L surveying equipment,and analyzes and verifies the accuracy and efficiency of the equipment in acquiring large-scale surface points clouds by taking the acquisition of airborne LiDAR points cloud data in the Jiaodong Peninsula as an example,and from key technologies such as flight design,placement parameter determination,precise trajectory calculation,and aerial points cloud production.