倾斜摄影测量协同三维测图的应用

为应对传统大比例尺测图人力成本高、管理难度大、作业效率低等难题,该文提出利用无人机倾斜摄影测量,制作三维模型和正射影像,再通过在线协同作业平台进行三维测图的方案。广州白云新城的应用表明,该方案满足1∶500地形图精度要求,其中检测的地形点的平面位置中误差为0.039 m,检测的高程点的中误差为0.034 m,并减少约60%的人力和时间成本。结果表明,倾斜摄影测量协同三维测图方案极大提高管理效能,且成果精度可靠,作业效率高。

In order to deal with the problems of high manpower cost,difficult management and low operation efficiency of traditional large-scale mapping,this paper proposes to use UAV tilt photogrammetry to make three-dimensional model and orthophoto image,and then carry out three-dimensional mapping through online collaborative work platform.The application of Baiyun Metro in Guangzhou shows that the scheme meets the accuracy requirements of 1RU 500 topographic map,in which the plane error of the detected topographic point is 0.039 m,and the median error of the detected elevation point is 0.034 m,and the labor and time cost is reduced by about 60%.The results show that the tilt photogrammetry combined with 3D mapping scheme greatly improves the management efficiency,and the accuracy of the results is reliable and the operation efficiency is high.