Challenges in the Digitisation of a High-reflective Artwork

Catalano, Chiara Eva; Brunetto, Erika; Mortara, Michela; Pizzi, Corrado

Challenges in the Digitisation of a High-reflective Artwork

Files

141-149.pdf (36 MB)

Date

2021

Authors

Catalano, Chiara Eva
Brunetto, Erika
Mortara, Michela
Pizzi, Corrado

Publisher

The Eurographics Association

Abstract

In this paper we report about the photogrammetric acquisition and reconstruction of a contemporary artwork, performed by offthe- shelf software. The ceramic piece of art is "Il Libro d'Oro del Terzo Paradiso" ("The Golden Book of the Third Paradise") by Michelangelo Pistoletto, accessed and studied in the framework of a regional project. This artefact is particularly challenging. On the one hand, it is golden coated and, as such, highly reflective. Hence, images are likely to suffer from highlight spots, shadows or self-reflections, and the reconstructed point cloud is typically noisy. On the other hand, the object exhibits simple geometry, mainly composed of planar surfaces, and is highly symmetric; however, it possesses detail features and undercuts. The symmetric nature of the object and reflections misled the image alignment, and the noise in the data turned out to be of the same scale as the detail features. We will discuss all the steps of the process, aimed at obtaining a high quality and accurate 3D model using low-cost tools.

        @inproceedings{10.2312:gch.20211418
,
booktitle = {Eurographics Workshop on Graphics and Cultural Heritage
},
editor = {Hulusic, Vedad and Chalmers, Alan
},
title = {{Challenges in the Digitisation of a High-reflective Artwork
}},
author = {Catalano, Chiara Eva and 
Brunetto, Erika and 
Mortara, Michela and 
Pizzi, Corrado
},
year = {2021
},
publisher = {The Eurographics Association
},
ISSN = {2312-6124
},
ISBN = {978-3-03868-141-0
},
DOI = {10.2312/gch.20211418
}
}