Authors:
Sylvain Dumazet
1
;
Patrick Callet
1
and
Ariane Genty
2
Affiliations:
1
Applied Mathematics and Systems Lab., Ecole Centrale Paris, France
;
2
INOLAM, France
Keyword(s):
Ray-tracing, spectrophotometry, 4-flux model, sculpture, virtual restoration, gilding, painting.
Related
Ontology
Subjects/Areas/Topics:
Computer Vision, Visualization and Computer Graphics
;
Fundamental Methods and Algorithms
;
Geometry and Modeling
;
Lighting and Appearance
;
Reflection and Illumination Models
;
Rendering
;
Rendering Algorithms
Abstract:
A pluridisciplinary work always in progress involving 3D digitization, simulation, rapid prototyping, virtual restoration of a french medieval sculpture is presented. This work is led in the framework of a general collaboration between three academic labs, industrial partners and Cultural institutions. The main purpose is to virtually represent a polychrome statue of the XIIIth century in high quality spectral rendering, to simulate its visual and original appearance at that period. The complete process used throughout all the phases of the project mainly involves optical devices that ensure no physical contact with the museum object. This article describes the complete chain of engineering resources and the main models we used for accomplishing our objective. From 3D capture without contact to plaster replica, the complete process will be described and illustrated with images and objects during the conference. Some sequences extracted from the didactic and scientific movies produced
will also be presented.
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