Utilizzo di Immagini Acquisite da Drone Aereo per la Ricostruzione Tridimensionale Realistica di un'Area di Interesse in Tempo Reale

Tridimensional reconstruction of areas and objects of interest from images acquired from aerial drones plays a key role in numerous fields, from the less critical, like urban planning and archeological area survey, to the most critical, like natural disaster monitoring, and search & rescue. Many techniques proposed to deal with this issue require expensive instrumentation or use computationally costly algorithm or need some a priori information that are not always available. Thus, they are not suitable for certain applications or in some specific situations. In order to overcome these limitations, we designed a technique that allows automatically creating 3D models in real-time using only a couple of images of the scene one is interested in, acquired with a cheap compact camera mounted on the drone, without the needing for any additional information. The proposed technique outputs dense true-color 3D models, which give the impression to the user to be physically present within the scene. Tested for monitoring the progress of the works in a construction site, the technique has been capable to create realistic and easy-to-interpret 3D models of areas and objects in less than 1 second and with a sufficient accuracy to permit large-scale surveys.