摘要
Abstract
Multi-rotor unmanned aerial vehicles are susceptible to multiple interferences such as wind disturbance,signal obstruction,water surface reflection,and sensor errors when surveying and mapping water conservancy hub engineering.These factors directly affect the image quality and aerial triangulation accuracy,resulting in certain deviations between surveying and mapping results and actual results.Therefore,the application of multi-rotor unmanned aerial vehicle(UAV)aerial survey in surveying and mapping of water conservancy hub engineering was studied.After the layout and measurement of ground control points were completed,the quality of aerial triangulation operation was evaluated in many dimensions,and the three-dimensional model of the water conservancy hub engineering site was established with the help of Context Capture software.The images of water conservancy hub engineering collected by UAVs were connected with the three-dimensional model through the forward intersection and the rear intersection,and then the precise coordinates of the points to be mapped were calculated by Cramer's rule.A comparative experimental test was conducted by applying the proposed method to other algorithms.The results show that multi-rotor UAVs can accurately and effectively survey and map the water conservancy hub engineering.关键词
多旋翼无人机航测/水利枢纽工程/地面控制点/克莱姆法则/三维模型Key words
multi-rotor unmanned aerial vehicle aerial survey/water conservancy hub engineering/ground control points/Cramer's rule/three-dimensional model分类
天文与地球科学
