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• W4286357218 abstract "AbstractThe mission design used to acquire imagery with small unmanned aerial systems (sUAS) incorporates decisions that determine the quality and accuracy of derived products. This study assesses the influence of sUAS mission design strategies on the accuracy of the resulting digital surface models and orthophotography in order to determine an optimal approach to image acquisition. Imagery was collected in the spring of 2018 during leaf-off conditions at six field sites along the North Fork of the White River in south-central Missouri. The aerial imagery was collected using a DJI Phantom Pro 4 sUAS. Four different mission designs were tested at each of the sites. Each of these designs yielded a set of base mission imagery. Each of these base mission datasets was processed individually and in various combinations using the structure-from-motion photogrammetry (SfM) software Agisoft Metashape to produce digital surface models (DSMs). Fifty-four resulting DSMs derived from those datasets were assessed based on their ability to accurately interpolate the planimetric and vertical coordinates of GNSS-surveyed check points (CPs). Simpler base mission designs with 80% image overlap yielded equal or better DSM accuracy than more complex mission designs. Additionally, slightly oblique imagery (20 ° above nadir) provided a small additional advantage in terms of accuracy. The simpler base mission datasets also provided advantages during SfM processing. With fewer images, the time required during both field work and data processing was reduced significantly.KeywordssUASDigital surface modelsStructure from motionsUAS mission designPhotogrammetry" @default.
• W4286357218 created "2022-07-21" @default.
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• W4286357218 date "2022-01-01" @default.
• W4286357218 modified "2023-10-17" @default.
• W4286357218 title "Assessing the Role of sUAS Mission Design in the Accuracy of Digital Surface Models Derived from Structure-from-Motion Photogrammetry" @default.
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• W4286357218 doi "https://doi.org/10.1007/978-3-031-01976-0_6" @default.
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