The paper is focused on practical experience of authors with field data collection using lidar miniVUX-1UAV from RIEGL mounted on DJI Matrice 600 Pro and their subsequent processing using different tools. Due to the specific conditions of the sandstone terrain and the high density requirements of the resulting point cloud, the field work was not routine even from the perspective of professional pilots from UpVision who controlled the drone.
The aim of the whole project is to evaluate the effect of data density on the rock shapes in the resulting digital relief model and to propose a filtration procedure that would work reliably even in such an extremely rugged terrain. The processing of the collected data is thus directed to a classified point cloud, which will serve as a reference dataset in the next project steps.