Abstract Remotely piloted aerial systems (RPASs) are gaining fast and wide application around the world due to its relative low-cost advantage in the acquisition of high-resolution imagery. However, standardized protocols for the construction of cartographic products are needed. The aim of this paper is to optimize the generation of digital terrain models (DTMs) by using different RPAS flight parameters. An orthogonal design L18 was used to measure the effect of photogrammetric flight parameters on the DTM generated. The image data were acquired using a DJI Phantom 4 Pro drone and six flight parameters were evaluated: flight mode, altitude, flight speed, camera tilt, longitudinal overlap and transversal overlap. Fifty-one ground control points were established using a global positioning system. Multivision algorithms were used to obtain ultra-high resolution point clouds, orthophotos and 3D models from the photos acquired. Root mean square error was used to measure the geometric accuracy of DTMs generated. The effect of photogrammetric flight parameters was carried out by using analysis of variance statistical analysis. Altimetric and planimetric accuracies of 0.38 and 0.11 m were achieved, respectively. Based on these results, high-precision cartographic material was generated using low-cost technology.

中文翻译：

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摄影测量 RPAS 飞行参数对 DTM 平面高度精度的影响

摘要 遥控航空系统（RPAS）由于其在获取高分辨率图像方面的相对低成本优势，在世界范围内得到了快速和广泛的应用。但是，需要用于构建制图产品的标准化协议。本文的目的是通过使用不同的 RPAS 飞行参数来优化数字地形模型 (DTM) 的生成。正交设计 L18 用于测量摄影测量飞行参数对生成的 DTM 的影响。图像数据是使用 DJI Phantom 4 Pro 无人机获取的，并评估了六个飞行参数：飞行模式、高度、飞行速度、相机倾斜度、纵向重叠和横向重叠。使用全球定位系统建立了 51 个地面控制点。Multivision 算法用于从获取的照片中获取超高分辨率点云、正射影像和 3D 模型。均方根误差用于测量生成的 DTM 的几何精度。采用方差统计分析法对摄影测量飞行参数的影响进行了分析。分别达到了 0.38 和 0.11 m 的高度和平面精度。基于这些结果，使用低成本技术生成了高精度制图材料。分别达到了 11 m。基于这些结果，使用低成本技术生成了高精度制图材料。分别达到了 11 m。基于这些结果，使用低成本技术生成了高精度制图材料。