Zendjebil: Nouvelle page : @INPROCEEDINGS{frauciel_igc, AUTHOR = "L. Frauciel and J. Vairon and P. Nehlig and P. Thierry and I. Zendjebil and F. Ababsa", TITLE = "Outdoor Augmented Real...

2008-07-16T14:10:51Z

Nouvelle page : <bibtex> @INPROCEEDINGS{frauciel_igc, AUTHOR = "L. Frauciel and J. Vairon and P. Nehlig and P. Thierry and I. Zendjebil and F. Ababsa", TITLE = "Outdoor Augmented Real...

Nouvelle page

<bibtex>
@INPROCEEDINGS{frauciel_igc,
AUTHOR = "L. Frauciel and J. Vairon and P. Nehlig and P. Thierry and I. Zendjebil and F. Ababsa",
TITLE = "Outdoor Augmented Reality as a tool for bringing 3D geology to the field: the RAXENV project",
BOOKTITLE = "International Geological Congress",
YEAR = "2008",
EDITOR = "",
PAGES = "",
ORGANIZATION = "",
PUBLISHER = "",
ADDRESS = "Oslo",
MONTH = "",
NOTE = "",
abstract ="Today 3D software is widely used in many geological applications like borehole data management, 3D geological modelling or for design work. However, most of the time, these tools are used as isolated subsystems, without direct links with the current real environment like vegetation or man-made artefacts. Geologists use them at the office, teachers in classrooms, but it is difficult to exploit these models directly in the field, to compare data and models with the real world. Integrating what can be seen in the field and results of monitoring, calculation and modelling still remains a difficult task.
The current RAXENV project aims at developing solutions to tackle this issue. The proposed solutions are based on Augmented Reality (AR) principles. The idea is to develop a system allowing the integration of: i) what can be currently seen in the field and ii) 3D numerical data. Two applications are currently being developed and tested: i) management of a complex geotechnical site and ii) diffusion of geological information for education and tourism.
In the case of the geotechnical site (Castle of Saumur), the main objective is to represent a complex set of more than 200 boreholes, the castle's architectural structures and foundations and its geological basement in order to better understand the interactions between the subsurface geology and the historical constructions. A second objective is to be able to visualize measured displacements of the walls and the evolution of cracks through time.
The second site is a highly frequented geological site in the (Chaîne des Puys), with many geological features: volcanic domes and cones, thermal springs, a major normal fault, and a basin. The objective there is to provide information to visitors on the local geology by superimposing it on the landscape. This information could include cross-sections of volcanic domes, a detailed geological map, a 3D model of the geology of the area and geographical and tourist information. On a wider scope, we're working on a remote access to GIS resources through OGC services, to build a mobile 3D GIS tool allowing on site 3D annotations and modifications.
From the technical point of view, the main difficulty is to ensure the visual coherence between real images (acquired through a video camera) and 3D numerical data. Since the system is for the outdoors, classical marker-based AR techniques are not suitable. It leads to develop markerless techniques which exploit the natural geometrical features existing in the environment (corners, edges, line segment, etc.). The system under development is composed of a tablet PC, a GPS, an inertial sensor, and a video camera to refine user's position and orientation (3D localization). Another challenge is to find a representation of 3D objects suitable for mixing with video images. The first results obtained for the Saumur site with algorithms developed by the University of Evry show accurate registration of the Castle."
}
</bibtex>

Bibtex:Frauciel igc - Historique des versions

Zendjebil: Nouvelle page : @INPROCEEDINGS{frauciel_igc, AUTHOR = "L. Frauciel and J. Vairon and P. Nehlig and P. Thierry and I. Zendjebil and F. Ababsa", TITLE = "Outdoor Augmented Real...