Virtual Restoration of Bronze-3D Capture and Optical Simulation in Parallel Spectral Ray-Tracing

Publication Type  Conference Paper
Year of Publication  2005
Authors  Callet, Patrick
Conference Name  Digital Culture and Heritage. Proceedings of ICHIM05.Paris
Publisher  Archives & Museum Informatics Europe (AMIE)
Conference Location  Paris, France
Keywords  ichim; ichim05; Spectral ray-tracing; optical constants; metals; roughness; bronzes; restoration; rapid prototyping
Abstract  

We present the main results of a complete study driven in cooperation with the "Musee National des Arts Asiatiques-Guimet" in Paris concerning a chinese horse bronze statuette, 20 centuries old. The visual appearance of bronze is studied, depending on their metallurgical composition and state of surface in normalized illumination and visualisation conditions. The results are presented on an example where a pluridisciplinary work was accomplished involving, engineering, art history, computer science, metallurgy, optics, material sciences,etc. specialists mainly from three academics labs, a museum, a rapid prototyping centre. The main results are presented here and summed up using many images of the original artifact and of the virtual and real replicas obtained. From 3D capture without any contact to plaster replicas with a galvano deposited metallic film, the complete process is described with images and objects during the conference. A didactic and scientific movie of 22 mn available in french, greek or chinese will also be presented.

URL  http://www.archimuse.com/publishing/ichim05/callet-bronzes.pdf

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