Digital technologies for the ''Grazia Deledda'' Literary Park in Galtellì (NU): the 3D virtual reconstruction of Pontes Castle

Abstract
This paper aims to present one of the digital outputs of the ongoing project to enhance the Grazia Deledda Literary Park in Galtellì: the virtual reconstruction of the medieval Pontes Castle, located in an impervious and hard-to-reach area. Although it is now difficult to identify the original structure, historical research, graphic reconstructions, surveys, and the restoration and consolidation works provide valuable information about its layout, which can be further expanded and improved thanks to the application of digital technologies. The 3D digitization of Pontes Castle using Gaussian Splatting introduces a new way of documenting cultural heritage through photorealistic reconstruction without polygonal meshes. This technique enables real-time interactive visualization, reducing processing time compared to traditional photogrammetry while offering a more natural handling of light and details. At the same time, to assess the benefits offered by this technique, the field data will also be processed using well-established software in the field of classical photogrammetry. In this regard, the results obtained with conventional techniques can serve as a ground-truth reference to verify the quality of the 3D-GS point cloud.
Description

        
@inproceedings{
10.2312:dh.20253033
, booktitle = {
Digital Heritage
}, editor = {
Campana, Stefano
and
Ferdani, Daniele
and
Graf, Holger
and
Guidi, Gabriele
and
Hegarty, Zackary
and
Pescarin, Sofia
and
Remondino, Fabio
}, title = {{
Digital technologies for the ''Grazia Deledda'' Literary Park in Galtellì (NU): the 3D virtual reconstruction of Pontes Castle
}}, author = {
Mariniello, Nicola
and
Giacomini, Federica
and
Obbiso, Sara
and
Sicilia, Francesco
and
Sanna, Antonio
and
Iannucci, Alessandro
and
Benvenuti, Giuliana
}, year = {
2025
}, publisher = {
The Eurographics Association
}, ISBN = {
978-3-03868-277-6
}, DOI = {
10.2312/dh.20253033
} }
Citation