3d Geomatics Techniques for an Integrated Approach to Cultural Heritage Knowledge: The Case of San Michele in Acerboli’s Church In Santarcangelo Di Romagna

Abstract

The modern Geomatics techniques, such as Terrestrial Laser Scanner (TLS) and multi-view Structure from Motion (SfM), are gaining more and more interest in the Cultural Heritage field. All the data acquired with these technologies could be stored and managed together with other information in a Historical Building Information Model (HBIM). <br><br> In this paper, it will be shown the case study of the San Michele in Acerboli’s church, located in Santarcangelo di Romagna, Italy. This church, dated about the 6th century A.D., represents a high relevant Romanic building of the high Medieval period. The building presents an irregular square plan with a different length of the lateral brick walls and a consequential oblique one in correspondence of the apse. Nevertheless, the different lengths of the lateral brick walls are balanced thanks to the irregular spaces between the windows. Different changes occurred during the centuries, such as the closing of the seven main doors and the building of the bell tower, in the 11th century A.D., which is nowadays the main entrance of the church. <br><br> An integrated survey was realized, covering the exterior and the interior. The final 3D model represents a valid support not only for documentation, but also to maintain and manage in an integrate approach the available knowledge of this Cultural Heritage site, developing a HBIM system in which all the mentioned historical, geometrical, material matters are collected.

HBIM-GIS Integration: From IFC to CityGML Standard for Damaged Cultural Heritage in a Multiscale 3D GIS

“…It is currently still closed and the surrounding area is classified as a "Red Area", identifying every city part damaged by the earthquake and temporary closed to the public for safety reasons. In order to support the representation of the church with a digital 3D model and in a multi-scale project to monitor the damage and for future reconstruction purposes, an integrated 3D metric survey [33][34][35] was performed in September 2017 by the Geomatics group of the Politecnico di Torino.…”

Hybrid 3D Models: When Geomatics Innovations Meet Extensive Built Heritage Complexes

“…Since it could be considered low-cost, easy to use, flexible (multi-resolution and multi-scale) and, thanks to the massive use of UAV, photogrammetry allows to move the point of view from the terrain to the air. As a consequence, in every work related to the survey of complex site, starting from the archaeological areas [5,6] up to the built heritage complex site [7][8][9][10], the use of photogrammetric techniques even more based on computer vision approach -the well-known Structure From Motion (SfM) -are massive used with the aim of extract 3D point clouds, 3D models or simple orthoprojections. Further development in this field are connected to the use of different sensors such us multispectral, hyperspectral, thermal or mobile device [11,12] and in the employment in terrestrial or UAV application of the new generation of panoramic /spherical camera [13,14].…”

Structure-from-Motion (SFM) Photogrammetry as a Non-Invasive Methodology to Digitalize Historical Documents: A Highly Flexible and Low-Cost Approach?

“…This approach allows to estimate the external orientation of the images and to reconstruct the 3D geometry of an object. In the last few years, a photogrammetric computer vision approach based on structure-from-motion algorithms has been applied for documentation of cultural heritage [18,20,21]. In the present-day, it is widely applied for many purposes in different fields and disciplines such as archaeology [22][23][24], architecture [25,26], geology [27], and geomorphology [28,29].…”