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The use of unmanned aerial vehicle systems (UAVs) for the acquisition of images, which are then processed by the photogrammetric method SfM (Structure-from-motion), is increasingly established as a suitable workflow for obtaining high-resolution topographic data (HRTD). Using PPK (Post-Processed Kinematic) solutions for UAVs can provide accurate parameters for the external orientation of the cameras used in UAVs for photogrammetric capture. The use of such an approach has the potential to become an alternative to ...