A preliminary approach on point cloud reconstruction of bronze statues through oriented photogrammetry: the "Principe Ellenistico" case

Close-Range Photogrammetry is a widespread and efficient technique in the 3D acquisition of artefacts, particularly in fields like Cultural Heritage. Despite this wide usage, also due to a convenient quality/cost ratio, it shows some limitations due to light conditions as well as the artefact surfac...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2020-11, Vol.949 (1), p.12117
Main Authors: Bici, M., Gherardini, F., Campana, F., Leali, F.
Format: Article
Language:English
Subjects:
3D acquisition
Bronze statue
Bronzes
Close-Range Photogrammetry
Cultural heritage
Cultural resources
Historic artifacts
Image reconstruction
Photogrammetry
Principe Ellenistico
Statuary
Surface finishing
Systematic approach
Three dimensional models
Workflow
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Summary:Close-Range Photogrammetry is a widespread and efficient technique in the 3D acquisition of artefacts, particularly in fields like Cultural Heritage. Despite this wide usage, also due to a convenient quality/cost ratio, it shows some limitations due to light conditions as well as the artefact surface finishing. In this paper, we would like to report the assessment of a photogrammetry approach to 3D capture metal reflective surfaces, such as bronze, which is a widely used material in ancient statues. To this aim, we propose a photogrammetry workflow based on systematic steps capable of overcome some of the main issues of reflective surfaces. To validate this approach, the developed 3D model is compared to a more accurate model of the same artefact, obtained with a 3D scanner. As a case study, we selected the Principe Ellenistico, an ancient bronze statue conserved in the Museo Nazionale Romano (Rome, Italy), of which a photogrammetric model is firstly developed and then compared to the scanned one.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/949/1/012117