Architectural modelling and archaeological reconstitution: digital tools for 3d acquisition and modelling assistance. - HAL-SHS - Sciences de l'Homme et de la Société Accéder directement au contenu
Communication Dans Un Congrès Année : 2004

Architectural modelling and archaeological reconstitution: digital tools for 3d acquisition and modelling assistance.

Résumé

The MAP-CRAI laboratory leads researches dedicated to 3D acquisition procedures (Mensi's “Soisic” laser scanner) and especially
to processing the resulting data. The scanner allows the measurement of buildings or architectural details and their restitution based
on processing of points clouds data files. To process the data, we chose architectural geometric modeling in order to obtain relevant
3D models, the intended use being architectural representation. Architectural modeling is understood here like a “meta” level
compared to geometric modeling. This three-dimensional modeling thus forms a language whose vocabulary would consist of
geometrical primitives and whose grammar would consist of specific combinatorial rules. To validate this process, it has been
necessary to resort to several experimentations. We thus tested the tools developed for the modeling of a classical 17th century
building and its environment. These tools were based here on the morphological characteristics of classical architecture: repetition by
translatory movement, symmetry, rotation, hierarchical organization based on the architectural orders, etc... Finally, the 3D model
was completed in the modeling software by additional data, such as the textures, obtained on site by photogrammetric measurement.
In the archaeological domain, experimentations validating the data acquisition and the 3D modeling chain have already been carried
out on a Gallo-Roman temple and are currently being continued on architectural elements related to Khmer civilization (Cambodia).
Another experimentation's aspect is the integration of the resulting algorithms in a professional 3D modeling software. These
researches aim to facilitate the transition from the acquisition and semantic description step, to a specific geometric modeling known
as "architectural modeling" ie: a digital representation form of three-dimensional data completed and adapted to the measured
elements.
Fichier principal
Vignette du fichier
Fuchs_2004_CIPA_Lisbon.pdf (8.5 Mo) Télécharger le fichier
Origine : Accord explicite pour ce dépôt
Loading...

Dates et versions

halshs-00264441 , version 1 (21-05-2008)

Identifiants

  • HAL Id : halshs-00264441 , version 1

Citer

Alain Fuchs, Pierre Grussenmeyer, Hayet Kadi, Jean-Pierre Perrin. Architectural modelling and archaeological reconstitution: digital tools for 3d acquisition and modelling assistance.. Workshop on Vision Techniques Applied to the Rehabilitation of City Centres, Oct 2004, lisbonne, Portugal. pp.1-12. ⟨halshs-00264441⟩
206 Consultations
580 Téléchargements

Partager

Gmail Facebook X LinkedIn More