PIAZZA DI PIETRA

The architectural survey of the square was conducted blending different methodologies in order to get as more information as possible. All the buildings in the square were reconstructed through an integration of point clouds from ReCap and SfM, as well as through photogrammetric rectifications. 

We first used terrestrial laser scanners: the phase-shift Laser Scanner Faro and the Leica C10. After acquiring the scans and the corresponding point clouds, the registration and merging of the various point clouds, captured from different stations, were carried out in order to generate a complete and unified dataset. From the complete point cloud, it was possible to extract each individual facade in order to reconstruct the geometric data. 

While the point clouds from ReCap provided general information regarding basic geometries, proportions and measurements, the SfM technique allowed the rapid acquisition of a large amount of data including metric and geometric information on architectural elements, color data and the state of conservation. Also, to achieve a more comprehensive analysis of Piazza di Pietra, a color survey was conducted on all the buildings overlooking the square.

After blending all this information we translated it in drawings. The final result is a detailed set of 2D and 3D models that can be used as a base to conduct conservation interventions on the buildings and/or to create a virtual and interactive model of the square. 

Location: Roma, Italy

Status: study

Year: 2020

Team: G.Lerose, G. Invernizzi, B. Di Lorenzo, I. De Santis