Application of UAV photogrammetric technique without photograph's control points in hydraulic engineering
Water conservancy projects are often constrained by water areas and variable climatic conditions,resulting in a complex and ever-changing measurement environment.To meet the needs of planning,design,and operational management,such projects require frequent surveying and mapping of large-scale topographic maps.Taking the Xianghe Estuary Gate as an example,this paper explores the application of Unmanned Aerial Vehicle(UAV)photogrammetric technology without image control points.This technology can quickly obtain topographic maps of water conservancy projects,and its accuracy meets the plane accuracy requirements of 1:500 large-scale mapping,significantly enhancing the measurement efficiency of water conservancy projects.
万方数据
维普
