3D MODELING WITH PHOTOGRAMMETRY BY UAVS AND MODEL QUALITY VERIFICATION
- 1Geomatics Lab, DICEAM, Università Mediterranea di Reggio Calabria, 89123 loc. Feo di Vito, Reggio Calabria, Italy
- 2Dept. of Planning, IUAV University of Venice, Santa Croce 191, Tolentini 30135 Venice, Italy
Keywords: 3D modeling, Structure from motion, Laser scanner, Monitoring, UAV
Abstract. This paper deals with a test lead by Geomatics laboratory (DICEAM, Mediterranea University of Reggio Calabria), concerning the application of UAV photogrammetry for survey, monitoring and checking. The study case relies with the surroundings of the Department of Agriculture Sciences. In the last years, such area was interested by landslides and survey activities carried out to take the phenomenon under control. For this purpose, a set of digital images were acquired through a UAV equipped with a digital camera and GPS. Successively, the processing for the production of a 3D georeferenced model was performed by using the commercial software Agisoft PhotoScan. Similarly, the use of a terrestrial laser scanning technique allowed to product dense cloud and 3D models of the same area. To assess the accuracy of the UAV-derived 3D models, a comparison between image and range-based methods was performed.