From SfM acquisition of the current state to the as-built model state. The Village of Pietrapizzuta in Francavilla di Sicilia

This article focuses on Information and Communication Technologies (ICT) for Cultural and Environmental Heritage. The case study deals with an episode of the 20th-century Italian heritage that is now abandoned and in ruins, the village of Pietrapizzuta, an area of the larger village of Schisina, designed in 1942 and built in the 1950s by Ente di Riforma Agraria (ERAS) in the municipality of Francavilla di Sicilia (ME). The current state of this housing cluster stimulates thoughts about the impact of natural disasters and human carelessness on Cultural Heritage. The model was developed starting with Structure from Motion (SfM) video acquisition, using Unmanned Aircraft System (UAS). The state of ruin of the site favoured a detailed analysis of the techniques and materials used in its construction, requiring particular attention during selection of the materials for developing the as-built model textures. Multimedia archival images were also used in order to obtain a rendering that could refer to the perception of the building as it was just completed.