地形地貌勘测中无人机测绘精度优化研究

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中图分类号：P231 文献标识码：A 文章编号：1672-3791(2026)04-0195-03

Research on Precision Optimization of UAV Surveying and Mapping in Topographic and Geomorphic Surveying

YIN Chenyu

Xuzhou Rongxin Surveying and Mapping Co., Ltd., Xuzhou, Jiangsu Province, 221o18 China Abstract: Inresponse to thelow effciencyand insuficient environmentaladaptabilityof traditional terrainand landform surveying methods,as wellas te problems ofdata loss and model distortion in unmanned aerial vehicle surveyingand mapping incomplex terrin,this researchaims to improve theprecisionandreliabilityofunmannedaerial vehicle surveying.The system integrates oblique photography and laser radar technology,focusing onoptimizing data acquisition strategies and point cloud procesing algorithms in complex environments.Byoptimizing key parameters suchas altitude,overlap,andflight path,agroundsimulationflightandreal-time monitoring strategy isproposed,and multi-level filteringand rigorous adjustment methodsareusedtoprocesspoint cloud data,constructinga full process precision control system fromacquisition to modeling.The verification of typical mountainous cases showsthat this method can effectivelysuppressdata deviation caused by terrain undulation and vegetation coverage,achieve centimeterlevel surveying precision,significantlyimprove thedetail restorationabilityand reliabilityof3Dmodels,and pro vide efficient and accurate technical support for complex terrain surveying.

Keywords: UAV surveying and mapping; Topography and geomorphology; Precision optimization; Pointcloud data processing; 3D modeling

地形地貌勘测是地理信息工程的重要基础，全站仪、航空摄影等传统手段受限于效率低、成本高和环境适应能力不足，难以满足复杂地形下高精度、大范围的勘测需求[1]。（剩余5220字）