大疆精灵4ProRTK无人机航测成图像控点密度与成果精度研究

Research on the density of control points and the precision of 4ProRTK aerial mapping image

传统低空无人机进行大比例尺地形测量,需要布设一定密度的像控点,用于解算像片的外方位元素。随着科技的发展,利用POS系统,可以直接获得每张像片的外方位元素,使得野外控制点的布设数量大大减少。通过4ProRTK无人机进行1∶1000地形测量的应用实践,对无人机航测成图像控点密度对成果精度的影响进行探讨研究。

The traditional low-altitude Unmanned Aerial Vehicle(UAV) needs to set a certain density of image control points to calculate the exterior orientation elements of the photo. With the development of science and technology, the exterior orientation elements of each photo can be directly obtained by using POS system, the number of control points in the field is greatly reduced. In this paper, through the application of the multi-rotor UAV WITH RTK to 1∶1000 topographic survey, the influence of the density of control points on the accuracy of aerial survey image of UAV is discussed.