LASER SCANNER AND CAMERA-EQUIPPED UAV ARCHITECTURAL SURVEYS
- 1ITC-CNR, Construction Technology Institute, via Lembo 38 B, 70125 Bari, Italy
- 2Pavimental S.p.A., Corso del Mezzogiorno 202, 71122 Foggia, Italy
Keywords: Laser scanner, UAV, 3D modelling
Abstract. The paper reports the workflow of 3D modelling and photorealistic texture mapping based on close range imagery acquired through a terrestrial laser scan and a camera mounted on a mini Unmanned Aerial Vehicle (UAV). The 3D models of the same architectural object – a watchtower named “Torre Pelosa” (Bari, Italy) - were compared in order to evaluate strengths and weaknesses of the used instruments and methods. The evaluated parameters where geo-referencing capability, manageability, manoeuvrability, operational constraint, survey completeness and costs. Despite a lower accuracy of the results, the use of a UAV mounted camera is essential to obtain a whole representation of the tower.