摘要
无人机摄影测量已成为制图领域的热门技术之一,在进行特殊地形测绘时,飞行高度对所生成的制图数据的精确度有重要影响。文章借助某开采矿区进行研究,使用大疆Mavic M3E无人机在不同飞行高度下进行摄影测量,构建数字高程模型后利用实地控制点分别进行X、Y、Z以及XY方向的精度验证。结果表明:在较低的飞行高度下模型构建精度相对较高,在较高的飞行高度下模型构建精度略有下降。该研究可为无人机摄影测量制图工作提供一定参考。
Nowadays,drone photogrammetry has become a popular technology in the field of cartography.The flight altitude plays a significant role in generating accurate cartographic data when mapping special terrains.This paper takes a certain mining area as the research object and carries out photogrammetry at different flight altitudes with the DJI Mavic M3E drone.After constructing the digital elevation model,the precision verification is conducted in X,Y,Z,and XY directions using ground control points.Experimental results show that the model construction accuracy is relatively high at lower flight altitudes,while slightly decreases at higher altitudes.This research can provide certain references for the cartographic work of drone photogrammetry.
作者
朱子强
ZHU Ziqiang(Zhejiang Provincial Mineral Resources Group Co.,Ltd.,Hangzhou 310012,China)
出处
《现代信息科技》
2024年第3期111-114,共4页
Modern Information Technology
关键词
无人机摄影测量
飞行高度
制图精度
数字高程模型
drone photogrammetry
flight altitude
cartographic accuracy
digital elevation model
