摘要
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 0.136 m in the horizontal direction and 0.072 m in the vertical direction. The result meets the specification requirements, and the mapping of larger scale topographic maps is also useful for reference.
引文
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