Authors: Non assegn; AREA MIN. 08 - Ingegneria civile e architettura; AREA MIN. 09 - Ingegneria industriale e dell'informazione
Journal: Antonello||Gabrieli||Cola||Menegatti
Conference: cp
Publisher: In this paper we introduce an inexpensive yet efficient pho-togrammetry system that takes advantage of state of art computer vision techniques to monitor large natural environments. Specifically, our system provides a precise evaluation of the terrain flow in wide landslides through optical flow applied to 2D image sequences and a back-projection of the resulting motion gradients to a 3D model of the landslide. Providing such a wide 3D model is one of the key issues and is addressed relying to a wide baseline stereo vision system. To initialize the stereo vision system, we propose an effective multiview calibration process.
