Generation of a geodetic plan from close-range aerial images

Over the last couple of years the usage of small UAV (unmanned aerial vehicles) in various fields of civilian use has grown extensively. Photogrammetric image acquisition with small unmanned aerial vehicles allows us to acquire high spatial resolution images of small areas, which can be used for the production of photogrammetric point clouds and orthophotos. \nIn this graduation thesis we have examined the usefulness of a UAV system for data acquisition and the generation of a geodetic plan of a small urban area. We were focused to find out which details for the geodetic plan can be obtained from the data acquired by UAV, as well as to investigate the strengths, the limits and potential problems of the used method. The detail was acquired from the photogrammetric point cloud with the RiSCAN PRO software in two steps. In the first step, the detail was acquired only from the photogrammetric point cloud, in the second step, the orthophoto has been additionally used for interpretation of the contents. The comparison between the detail obtained from the photogrammetric point cloud and the data acquired by terrestrial laser scanning was done as well. After all these steps the geodetic plan was accomplished. Final observations and the evaluation of the usefulness of close-range aerial images for the generation of the geodetic plan are given in the conclusion.