Photogrammetric multisensor application for the documentation of the Underwater Heritage
Department: PhD in Architectural and Landscape Heritage
Supervisor: Prof. Filiberto Chiabrando
Candidate: Alessio Calantropio
Underwater environments have long received the attention of the scientific community across disciplines. With more than 70% of our planet’s surface covered with water, the marine space is still largely unexplored in many respects. Underwater exploration is, essentially, interdisciplinary, and thus requires a strong collaboration between researchers in different fields (e.g geology, biology, archaeology, engineering, geomatics). Consistent with emerging documentation requirements, the study of underwater cultural heritage (including ancient or historic shipwrecks, now-submerged prehistoric coastal villages, and archaeological sites in general) or submerged infrastructures via geomatics employs Computer Vision techniques – such as Structure-from-Motion (SfM) photogrammetry – which can be used for remote or indirect study of inaccessible sites by domain experts. The growing number of applications in underwater photogrammetry in recent years allows one to virtually reconstruct the seafloor, shipwrecks, submerged structures and infrastructures, and therefore enables the study of marine environments and their submerged contents without divers or vehicles in the water (ROV).