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See detail3D Point Clouds in Archaeology: Advances in Acquisition, Processing and Knowledge Integration Applied to Quasi-Planar Objects
Poux, Florent ULiege; Neuville, Romain ULiege; Van Wersch, Line ULiege et al

in Geosciences (2017), 7(4), 96

Digital investigations of the real world through point clouds and derivatives are changing how curators, cultural heritage researchers and archaeologists work and collaborate. To progressively aggregate ... [more ▼]

Digital investigations of the real world through point clouds and derivatives are changing how curators, cultural heritage researchers and archaeologists work and collaborate. To progressively aggregate expertise and enhance the working proficiency of all professionals, virtual reconstructions demand adapted tools to facilitate knowledge dissemination. However, to achieve this perceptive level, a point cloud must be semantically rich, retaining relevant information for the end user. In this paper, we review the state of the art of point cloud integration within archaeological applications, giving an overview of 3D technologies for heritage, digital exploitation and case studies showing the assimilation status within 3D GIS. Identified issues and new perspectives are addressed through a knowledge-based point cloud processing framework for multi-sensory data, and illustrated on mosaics and quasi-planar objects. A new acquisition, pre-processing, segmentation and ontology-based classification method on hybrid point clouds from both terrestrial laser scanning and dense image matching is proposed to enable reasoning for information extraction. Experiments in detection and semantic enrichment show promising results of 94% correct semantization. Then, we integrate the metadata in an archaeological smart point cloud data structure allowing spatio-semantic queries related to CIDOC-CRM. Finally, a WebGL prototype is presented that leads to efficient communication between actors by proposing optimal 3D data visualizations as a basis on which interaction can grow. [less ▲]

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See detailDIGITAL INVESTIGATIONS OF AN ARCHAEOLOGICAL SMART POINT CLOUD: A REAL TIME WEB-BASED PLATFORM TO MANAGE THE VISUALISATION OF SEMANTICAL QUERIES
Poux, Florent ULiege; Neuville, Romain ULiege; Hallot, Pierre ULiege et al

in Conservation of Cultural Heritage in the Digital Era (2017, May 16)

While virtual copies of the real world tend to be created faster than ever through point clouds and derivatives, their working proficiency by all professionals’ demands adapted tools to facilitate ... [more ▼]

While virtual copies of the real world tend to be created faster than ever through point clouds and derivatives, their working proficiency by all professionals’ demands adapted tools to facilitate knowledge dissemination. Digital investigations are changing the way cultural heritage researchers, archaeologists, and curators work and collaborate to progressively aggregate expertise through one common platform. In this paper, we present a web application in a WebGL framework accessible on any HTML5-compatible browser. It allows real time point cloud exploration of the mosaics in the Oratory of Germigny-des-Prés, and emphasises the ease of use as well as performances. Our reasoning engine is constructed over a semantically rich point cloud data structure, where metadata has been injected a priori. We developed a tool that directly allows semantic extraction and visualisation of pertinent information for the end users. It leads to efficient communication between actors by proposing optimal 3D viewpoints as a basis on which interactions can grow. [less ▲]

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See detailANALYSES OF EARLY MEDIEVAL STAINED WINDOW GLASS FROM THE MONASTERY OF BAUME-LES- MESSIEURS (JURA, FRANCE)
Van Wersch, Line ULiege; Loisel, C.; Mathis, François ULiege et al

in Archaeometry (2016), 58(6), 930-946

The collection of early medieval window glass found in the abbey of Baume-les-Messieurs (Jura, France) is exceptional because it dates to the end of the eighth century, and due to the number of fragments ... [more ▼]

The collection of early medieval window glass found in the abbey of Baume-les-Messieurs (Jura, France) is exceptional because it dates to the end of the eighth century, and due to the number of fragments as well as their state of conservation. Different colours and forms have been identified. These pieces are a rare opportunity to address the glass craft, its recipes and techniques for a phase of its history that has remained little known. Analyses in PIXE–PIGE prove that, in addition to fragments from two soda glass items, the pieces are made from wood-ash glass. Most of them probably came from the same production and the raw material is present in the region. At this early stage of wood-ash glass production, the glassmakers had mastered the glass as well as the colour processes. [less ▲]

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See detailMultiscale study of the Carolingian mosaic of Germigny-des-Prés (Loiret, Fr
Van Wersch, Line ULiege; Kronz, L.; Simon, K. et al

Conference (2016, July 08)

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See detailPIXE-PIGE analysis of Early Medieval Glass Artefacts at IPNAS cyclotron external beam line
Chene, Grégoire ULiege; Van Wersch, Line ULiege; Biron, Isabelle et al

Poster (2016, July 05)

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See detailEarly medieval glass tiles from Saint-Sauveur (Burgundy, France)
Van Wersch, Line ULiege; Mathis, François ULiege; Bonnin, Myrtho et al

Conference (2015, September 09)

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See detailLe bol de Wellin et son "parent" de Valsgärde?
Van Wersch, Line ULiege; Mathis, François ULiege

in Lorren, Claude (Ed.) La Gaule, le monde insulaire et l'Europe du Nord au haut Moyen Age (2013)

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See detailPIXE-PIGE analysis of early medieval window glass from the abbey of Stavelot
Van Wersch, Line ULiege; Mathis, François ULiege; Biron, Isabelle et al

Poster (2013)

From the 1 st century, glass found in northern Europe was made from a mix of sand and natron that had to be imported from eastern Mediterranean [1]. After the fall of the Roman Empire, glassmakers could ... [more ▼]

From the 1 st century, glass found in northern Europe was made from a mix of sand and natron that had to be imported from eastern Mediterranean [1]. After the fall of the Roman Empire, glassmakers could either recycle existing glass or continue to import material. Then, around the end of the 8 th century, the first testimonies of potash glass, made with sand and trees ashes, are attested [1]. This type of glass would then prevail but the reasons and mechanisms of its appearance remain beyond understanding. They could be linked to the development of architecture and the growing needs of window glass. Founded in the middle of the VII th century, the abbey of Stavelot was a first time ruined by Vikings in 881. In the destruction levels, hundreds fragments of window glass were found [2]. 34 fragments were analysed in PIXE-PIGE at the cyclotron of the Institute of Nuclear and Atomic Physics and of Spectrometry of the University of Liège. The results show coexistence of both natron and potash glass on the site, even in the same archaeological contexts. For the coloration, the recipes to obtain turquoise or amber glass were comparable to those known on other early medieval sites [3], but to make green potash glass the artisans have used to two types of recipes. This shows the need to carry on researches and analysis on early medieval window glass in order to understand its production techniques that are also at the origin of famous gothic stained glass [less ▲]

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See detailGlass production in Merovingian time
Van Wersch, Line ULiege; Mathis, François ULiege; Othmane, G. et al

Poster (2010, May)

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See detailGlass production in late antiquity
Van Wersch, Line ULiege; Mathis, François ULiege; Dupuis, Thomas ULiege et al

Poster (2009)

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See detailÉtude des verres du Haut Moyen Âge découverts dans l’église des saints Hermès et Alexandre à Theux
Van Wersch, Line ULiege; Mathis, François ULiege; Hoffsummer, Patrick ULiege

in Balcon-Berry, Sylvie; Perrot, Françoise; Sapin, Christian (Eds.) Vitrail, Verre et Archéologie entre le Ve et le XIIe siècle (2009)

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See detailMerovingian pottery in the Mosan Valley: diffusion and consumption
Van Wersch, Line ULiege; Coquinot, Yvan; Mathis, François ULiege et al

Poster (2009)

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See detailEtude du matériel céramique d’un dépotoir mérovingien en province de Namur (Belgique)
Van Wersch, Line ULiege; Vrielynck, olivier

in Guillaume, J.; Peytremann, E. (Eds.) L’Austrasie, société, économies, territoires, christianisation, Actes des XXVIe Journées internationales d’archéologie mérovingienne (2008)

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See detailLes fours de potiers mérovingiens découverts à Maastricht
Van Wersch, Line ULiege

in Husi, Philippe; Hincker, Vincent (Eds.) actes du colloque international, La céramique du Haut Moyen Âge (Ve-Xe siècles) dans le nord-ouest de l’Europe. Bilan et perspectives dix ans après le colloque d’Outreau (2006)

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See detailLa céramique, témoin privilégié des aspects sociaux et culturels du site mérovingien de Sclayn
Van Wersch, Line ULiege

in Husi, Philippe; Hincker, Vincent (Eds.) Actes colloque international, La céramique du Haut Moyen Âge (Ve-Xe siècles) dans le nord-ouest de l’Europe. Bilan et perspectives dix ans après le colloque d’Outreau (2006)

Detailed reference viewed: 31 (3 ULiège)