Morphometric Analysis through 3D Modelling of Bronze Age Stone Moulds from Central Sardinia

Stone moulds were basic elements of metallurgy during the Bronze Age, and their analysis and characterization are very important to improve the knowledge on these artefacts useful for typological characterization. The stone moulds investigated in this study were found during an archaeological field...

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Main Authors: Stefano Cara, Paolo Valera, Carlo Matzuzzi
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Minerals
Subjects:
Online Access:https://www.mdpi.com/2075-163X/11/11/1192
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author Stefano Cara
Paolo Valera
Carlo Matzuzzi
author_facet Stefano Cara
Paolo Valera
Carlo Matzuzzi
author_sort Stefano Cara
collection DOAJ
description Stone moulds were basic elements of metallurgy during the Bronze Age, and their analysis and characterization are very important to improve the knowledge on these artefacts useful for typological characterization. The stone moulds investigated in this study were found during an archaeological field survey in several Nuragic (Bronze Age) settlements in Central Sardinia. Recent studies have shown that photogrammetry can be effectively used for the 3D reconstruction of small and medium-sized archaeological finds, although there are still many challenges in producing high-quality digital replicas of ancient artefacts due to their surface complexity and consistency. In this paper, we propose a multidisciplinary approach using mineralogical (X-ray powder diffraction) and petrographic (thin section) analysis of stone materials, as well as an experimental photogrammetric method for 3D reconstruction from multi-view images performed with recent software based on the CMPMVS algorithm. The photogrammetric image dataset was carried out using an experimental rig equipped with a 26.2 Mpix full frame digital camera. We also assessed the accuracy of the reconstruction models in order to verify their precision and readability according to archaeological goals. This allowed us to provide an effective tool for more detailed study of the geometric-dimensional aspects of the moulds. Furthermore, this paper demonstrates the potentialities of an integrated minero-petrographic and photogrammetric approach for the characterization of small artefacts, providing an effective tool for more in-depth investigation of future typological comparisons and provenance studies.
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spelling doaj.art-c439b0f4e067436bbfee528fb7761d222023-11-23T00:31:38ZengMDPI AGMinerals2075-163X2021-10-011111119210.3390/min11111192Morphometric Analysis through 3D Modelling of Bronze Age Stone Moulds from Central SardiniaStefano Cara0Paolo Valera1Carlo Matzuzzi2National Research Council of Italy—Institute of Environmental Geology and Geoengineering (IGAG), 09124 Cagliari, ItalyDepartment of Civil and Environmental Engineering and Architecture (DICAAR), University of Cagliari, 09124 Cagliari, ItalyNational Research Council of Italy—Institute of Environmental Geology and Geoengineering (IGAG), 09124 Cagliari, ItalyStone moulds were basic elements of metallurgy during the Bronze Age, and their analysis and characterization are very important to improve the knowledge on these artefacts useful for typological characterization. The stone moulds investigated in this study were found during an archaeological field survey in several Nuragic (Bronze Age) settlements in Central Sardinia. Recent studies have shown that photogrammetry can be effectively used for the 3D reconstruction of small and medium-sized archaeological finds, although there are still many challenges in producing high-quality digital replicas of ancient artefacts due to their surface complexity and consistency. In this paper, we propose a multidisciplinary approach using mineralogical (X-ray powder diffraction) and petrographic (thin section) analysis of stone materials, as well as an experimental photogrammetric method for 3D reconstruction from multi-view images performed with recent software based on the CMPMVS algorithm. The photogrammetric image dataset was carried out using an experimental rig equipped with a 26.2 Mpix full frame digital camera. We also assessed the accuracy of the reconstruction models in order to verify their precision and readability according to archaeological goals. This allowed us to provide an effective tool for more detailed study of the geometric-dimensional aspects of the moulds. Furthermore, this paper demonstrates the potentialities of an integrated minero-petrographic and photogrammetric approach for the characterization of small artefacts, providing an effective tool for more in-depth investigation of future typological comparisons and provenance studies.https://www.mdpi.com/2075-163X/11/11/1192photogrammetryartefacts 3D modellingstone mouldsSardinia
spellingShingle Stefano Cara
Paolo Valera
Carlo Matzuzzi
Morphometric Analysis through 3D Modelling of Bronze Age Stone Moulds from Central Sardinia
Minerals
photogrammetry
artefacts 3D modelling
stone moulds
Sardinia
title Morphometric Analysis through 3D Modelling of Bronze Age Stone Moulds from Central Sardinia
title_full Morphometric Analysis through 3D Modelling of Bronze Age Stone Moulds from Central Sardinia
title_fullStr Morphometric Analysis through 3D Modelling of Bronze Age Stone Moulds from Central Sardinia
title_full_unstemmed Morphometric Analysis through 3D Modelling of Bronze Age Stone Moulds from Central Sardinia
title_short Morphometric Analysis through 3D Modelling of Bronze Age Stone Moulds from Central Sardinia
title_sort morphometric analysis through 3d modelling of bronze age stone moulds from central sardinia
topic photogrammetry
artefacts 3D modelling
stone moulds
Sardinia
url https://www.mdpi.com/2075-163X/11/11/1192
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AT paolovalera morphometricanalysisthrough3dmodellingofbronzeagestonemouldsfromcentralsardinia
AT carlomatzuzzi morphometricanalysisthrough3dmodellingofbronzeagestonemouldsfromcentralsardinia