EFIDIR Project

***Extraction et Fusion d’Information pour la mesure des déplacements en Imagerie Radar

Duration : 2008 - 2011
Coordinator : Emmanuel Trouvé, MdC au LISTIC, Université Savoie Mont Blanc.
ISTerre teams involved :
- Cycle sismique et déformations transitoires
- Géophysique des volcans
Collaborations extérieures :
- LISTIC-USMB : Laboratoire d’Informatique, Systèmes, Traitement de l’Information et de la Connaissance, Annecy
- LG-ENS : Laboratoire de Géologie, ENS Paris
- IETR-UdR1 : Institute for Electronics and Telecommunications of Rennes
- GIPSA-INPG : Grenoble Image Parole Signal Automatique, Grenoble
- LTCI-ENST : Laboratoire de Traitement et Communication de l’Information, Paris
Contact at ISTerre : Cécile Lasserre

The EFIDIR project is essentially a methodological project aimed at developing an open archiving and processing platform adapted to the specificities of SAR data and to the large time series used for soil displacement measurements.

Project website

Figure 1 : This series of images is constructed from CSK ascending data taken between June and December 2010, with 32 days between each image. The zones evolving with time due to glacier motion are date specific. The parts of image not covered by the glacier have been combined using a geometric average of the series of 7 images. This creates a constant background against which the movement of the glacier is clearly visible. Certain images are particularly dark ; this is due to fresh snow. Source