Architecture and Heritage
The laser scanning technology allows to measure monuments with a
very high density of information.
The 3D point clouds which are directly rendered from the measurement are
very precise and, even more important: very coherent.
From these point clouds, we are able to generate a 3D model of the object or extract its characteristic lines as facade, elevation, or section plans.
This technology also allows to deliver orthophotographs based on the 3D model rendered from the laser survey and high quality digital images (Canon EOS 5D 13M pixels). For this type of application, we have developed a software called ImgSurveyor, allowing to bridge between laser scanning and photogrammetry.
The 3D or 2D data is delivered in the usual computer CAO/DAO formats.
For projects related to:
- surveying architectural monuments, historical monuments, complex monuments,
- where 3D modeling is necessary as work base,
- works where a visual rendering is an asset,
- renovation of all types of buildings, where a good knowledge of the existing situation is needed.
Benefit of the method:
- High level of details,
- 3D display,
- Time of operation highly reduced,
- Elevations and drawings of facades,
- Archiving of historical heritage,
- Rendering of facades with textures,
- 3D presentations (film, 3D rendering…),
- Creation of virtual visits.
Do consult our references in Architecture, in particular:
Mobile laser scanner:3D textured model of civil works: laser scanner surveys on board and 3D geographic information systems.
Archaeology:Laser scanner survey of the two sides of the Roman aqueduct of Gier (2 x 650 m). Orthophotograph generation of the whole with a 5 mm pixel..
Preservation of historical monuments: Laser scanner survey of the south wing of the Basilica of Saint Denis (93). Carrying out of the deformation analysis of the Rose, façade plans, and section plans. Article published in Atrium Construction, n°27, February-March. (pdf 600 Ko)
R&D :Research and Development Project: comparative study of the different architectural 3D modeling methods from terrestrial laser scanner data and analysis of the 3D textured models' final accuracy..
R&D :Research and Development Project: Carrying out of 3D textured models from laser scanner data and photogrammetry..
3D survey of the site:3D topographical survey using classic methods and laser scanning of cliffs on the site in La Chambotte (73). Carrying out of a topographical map and a 3D digital model of the land of the site.
Restoration of monuments:10000 m2 of façades and roofs by laser scanning, façade plans, (level of detail under one centimeter) on a historical monument in Strasbourg.
