Accuracy assessment of 3d models using close-range photogrammetry methods

UAVs have become a common tool in buildings research as they provide higher resolution images compared with satellite imagery. Research indicates that unmanned aerial vehicles (UAVs) can be used for low-altitude imaging and remote sensing of geospatial information. UAVs are being used for surveying buildings due to their affordability, reliability and ease-of -use. Recent developments in photogrammetry technology provide a simple and cost-effective method of generating relatively accurate 3D models from 2D images . The integrated use of different spatial data sources is essential for this project. Ground Control Points (GCP) were also acquired by topographic measurements, allowing the connection of different modelled features in the model, as well as the absolute positioning of the site. A total station and handheld GNSS receiver were used for these measurementsVytauto Didžiojo universitetasŽemės ūkio akademij