Amphitheater of Volterra: case study for the representation of the excavation data

The work presented wants to show how different techniques of expeditious relief can be combined together in order to better describe the subject studied. Techniques of digital projection as laser scanner, topography and Structure from Motion can be used simultaneously and interact with each other to create a rich database of colorimetric and metrics information. Methodologies that, at the same time, present the peculiarities and errors of peculiar relief of the technology employed.The case study examined in this type of research is the discovery of the amphitheater of Volterra. Discovered in July 2015 during the phases of reclamation of a stream, is located close to Porta Diana and a few hundred meters from the Roman Theater discovered in the last century. An excavation campaign undertaken Between October and November 2015 has allowed us to bring to light the crests of the supporting walls of the structure, revealing the presence of the three orders and a depth of about ten meters.The step of post processing has finally seen the use of three-dimensional models acquired both for the creation of images metrics necessary to the study of the stratigraphic units, both for studying a mobile application, 3D models and data of the excavation, easy to use for transmitting the information collected.