Skip to Main content Skip to Navigation
Theses

Reconstruction 3D pour la volcanologie: apports d'une méthode multi-vues par photogrammétrie numérique

Abstract : 3-D reconstruction is a basic tool for volcanology providing data for morpho-structural studies, ground deformation monitoring and analogue simulations. An original reconstruction approach has been developed to suit the specific requirements of volcanology. Based on the use of multiple digital images acquired around a surface, the approach takes two main stages: (1) a precise calibration of the optical sensor (2) a 3-D reconstruction process using an iterative deformation of an initial 3-D model. The method was developed and tested in laboratory on a variety of analogue experiments. The results show that the method is a versatile and powerful reconstruction method allowing the detection of fine morphological variations. Tests on real volcanic surfaces have also shown the method's potential to provide data for volcanic monitoring. The approach, which lies at on the boundary between volcanology and Computer Vision, offers a refinement and alternative to classical photogrammetric methods.
Complete list of metadatas

Cited literature [121 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-00007483
Contributor : Emmanuelle Cecchi <>
Submitted on : Monday, November 22, 2004 - 5:43:50 PM
Last modification on : Thursday, February 25, 2021 - 11:39:18 AM
Long-term archiving on: : Friday, April 2, 2010 - 8:41:02 PM

Identifiers

  • HAL Id : tel-00007483, version 1

Citation

Emmanuelle Cecchi. Reconstruction 3D pour la volcanologie: apports d'une méthode multi-vues par photogrammétrie numérique. Géologie appliquée. Université Blaise Pascal - Clermont-Ferrand II, 2003. Français. ⟨tel-00007483⟩

Share

Metrics

Record views

1864

Files downloads

1017