小型消费级无人机在获取大比例尺地形数据中的应用研究

The Application of Extracting Large Scale Topographic Data Based on Small Consumer UAV

以某测区1:1000地形图测绘项目为例,介绍了利用小型消费级无人机DJI Phantom 4 Pro和PhotoScan影像处理软件获取4D产品的基本流程。通过GNSS RTK实测数据与获取地形数据进行精度评价,平面中误差为0.136m,高程中误差为0.072m,结果满足规范要求,而且对更大比例尺地形图测绘也有借鉴意义。

Taking a surveying project of 1:1000 topographic map as an example, this article introduced the basic process of acquiring 4D products using small consumer UAV DJI Phantom 4 Pro and PhotoScan image processing software. Through accuracy evaluation by GNSS RTK measured data and acquired topographic data, the mean error is 0.136m in the horizontal direction and 0.072m in the vertical direction. The result meets the specification requirements, and the mapping of larger scale topographic maps is also useful for reference.