摘要
随着无人机技术的不断发展,无人机数码航测技术和无人机LiDAR技术在测量领域的应用越来越广泛。为分析无人机LiDAR点云和无人机影像匹配点云2种点云的差异,该文通过对西南某铁路一个测区在同一飞行高度的情况下同时进行无人机数码航摄及无人机LiDAR航摄2种方式航摄。对2种不同的摄影方式获取的点云进行比较,分析出2种方法获取点云在形态表现、滤波分类,以及利用2种点云制作DEM高程精度方面的差异,为实际工程航飞方式的选择提供一个参考。
With the continuous development of UAV technology,UAV digital aerial survey technology and UAV LiDAR technology are more and more widely used in the field of measurement.In order to analyze the difference between UAV LiDAR point cloud and UAV image matching point cloud,this paper simultaneously carries out UAV digital aerial photography and UAV LiDAR aerial photography at the same flight altitude in a survey area of a railway in southwest China.This paper compares the point clouds obtained by two different photography methods,and analyzes the differences between the two methods in morphological performance,filter classification and DEM elevation accuracy using two kinds of point clouds,so as to provide a reference for the selection of practical engineering flight methods.
出处
《科技创新与应用》
2024年第19期86-89,94,共5页
Technology Innovation and Application
