Topography, Laser Scanning and Automated Photogrammetry for an Integrated Survey methodology: survey and modeling of the Roman amphitheater in Syracuse.

The survey campaign conducted on Roman amphitheater in Syracuse on behalf of the Soprintendenza Beni Culturali ed Ambientali di Siracusa, is part of a line of research that aims to optimize the survey procedures in archeology, that until a few years ago, was based on topography and laser scanning; about the images we relied on texturing or, in more advanced procedures, the acquisition of digital photographs taken by replacing the laser scanner a digital camera (carefully calibrated) to reproduce the same center of projection; this operation allowed us to have images of greater resolution than the scanner data color