La tomographie, l’impression 3D et la réalité virtuelle au service de l’archéologie

Nicolas, Théophane; Gaugne, Ronan; Tavernier, Cédric; Arnaldi, Valérie Gouranton et Bruno

doi:10.4000/nda.3823

Cited by 5 publications

(2 citation statements)

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“…The use of computed tomography algorithms in archaeology still primarily adapts to the possibilities of arbitrary use of medical and industrial hardware. It is only since 2015 that we have seen greater interest from archaeologists and conservators in the use of computed tomography in the processes of conservation, restoration and visualisation of archaeological objects [ 84 , 85 , 86 , 87 , 88 ].…”

Section: Tomographic Reconstruction In Archaeologymentioning

confidence: 99%

“…In recent years there have been efforts in this direction, for example by researchers at the University of Bologna and the Conservazione e Restauro “La Venaria Reale”—CCR of the University of Turin. An important innovation in the use of computed tomography for the conservation of valuable remains of cultural heritage are interdisciplinary projects of some French (e.g., the Introspect project) [ 84 , 88 ], British (RTISAD project), American (e.g., EDUCE project; Mummy project) [ 87 ], Canadian, Israeli, Austrian [ 86 ] and German [ 85 ] university research centres. In collaboration with specialised laboratories of state museums and some private companies, they use computed tomography (CT algorithms) in the planning, conservation and restoration of museum and archaeological exhibits.…”

Section: Tomographic Reconstruction In Archaeologymentioning

confidence: 99%

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Microtomographic Analysis of a Palaeolithic Wooden Point from the Ljubljanica River

Puhar

Korat

Erič

et al. 2022

Sensors

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A rare and valuable Palaeolithic wooden point, presumably belonging to a hunting weapon, was found in the Ljubljanica River in Slovenia in 2008. In order to prevent complete decay, the waterlogged wooden artefact had to undergo conservation treatment, which usually involves some expected deformations of structure and shape. To investigate these changes, a series of surface-based 3D models of the artefact were created before, during and after the conservation process. Unfortunately, the surface-based 3D models were not sufficient to understand the internal processes inside the wooden artefact (cracks, cavities, fractures). Since some of the surface-based 3D models were taken with a microtomographic scanner, we decided to create a volumetric 3D model from the available 2D tomographic images. In order to have complete control and greater flexibility in creating the volumetric 3D model than is the case with commercial software, we decided to implement our own algorithm. In fact, two algorithms were implemented for the construction of surface-based 3D models and for the construction of volumetric 3D models, using (1) unsegmented 2D images CT and (2) segmented 2D images CT. The results were positive in comparison with commercial software and new information was obtained about the actual state and causes of the deformation of the artefact. Such models could be a valuable aid in the selection of appropriate conservation and restoration methods and techniques in cultural heritage research.

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