山地区无人机摄影测量成图精度研究

Study on the Mapping Accuracy of UAV Photogrammetry in Mountain Area

摘要: 无人机低空摄影测量具有受地表限制小、工作效率高、获得的数据精度高等优点，广泛应用于地形图测绘、灾害监测、智慧城市等领域。研究无人机低空摄影测量生成4D产品和3D模型的精度十分重要。以攀枝花学院南苑山地区为例进行了五种不同的像控点布设方案，从高度、长度两方面分析了3D模型能达到的精度水平。结果表明，3D模型的高度误差集中分布在0.10~0.14 m，长度误差集中分布在0.06~0.18 m。

Abstract: UAV low altitude photogrammetry has the advantages of small surface limitations, high work effi-ciency, and high data accuracy, and is widely used in terrain mapping, disaster monitoring, smart cities, and other fields. It is very important to study the accuracy of drone low altitude photogram-metry to generate 4D products and 3D models. Taking the Nanyuan Mountain area of Panzhihua University as an example, five different layout schemes of image control points were carried out, and the accuracy level that the 3D model can achieve was analyzed from height and length. The re-sults show that the height error of the 3D model is concentrated between 0.10~0.14 m, and the length error is concentrated between 0.06~0.18 m.