 |
|
|
|
| HAL : hal-00740666, version 1 |
| DOI : 10.1109/CVRS.2012.6421237 |
| Fiche détaillée |  Récupérer au format |
|
|
| CVRS 2012 - International Conference on Computer Vision in Remote Sensing, Xiamen : China (2012) |
|
|
|
|
| Data assimilation with state alignment using high-level image structures detection |
|
|
| Alexandros Makris 1, 2Nicolas Papadakis 1, 3 |
|
|
| (16/12/2012) |
|
|
|
| Sequential and variational assimilation methods allow tracking physical states using dynamic prior together with external observation of the studied system. However, when dense image satellite observations are available, such approaches realize a correction of the amplitude of the different state values but do not incorporate the spatial errors of structure positions. In the case of the position of a vortex, for example, when there is misfit between state and observation, the processes can be long to converge and even diverge when high dimensional state spaces are treated with few iterations of the assimilation methods as it is the case in operational algorithms. In this paper, we tackle this issue by proposing an alignment method based on modern object detection methods that uses visual correspondences between the physical state model and the structural information given by a sequence of image observing the phenomena. |
|
|
|
|
|
|
|
|
|
|
|
| 1 : | MOISE (INRIA Grenoble Rhône-Alpes / LJK Laboratoire Jean Kuntzmann) |
|
|
|
CNRS : UMR5224 – INRIA – Laboratoire Jean Kuntzmann – Université Joseph Fourier - Grenoble I – Institut Polytechnique de Grenoble - Grenoble Institute of Technology |
|
|
| 2 : | Université Joseph Fourier (Grenoble 1 UJF) |
|
|
|
Université Joseph Fourier - Grenoble I |
|
|
| 3 : | Laboratoire Jean Kuntzmann (LJK) |
|
|
|
CNRS : UMR5224 – Université Joseph Fourier - Grenoble I – Université Pierre-Mendès-France - Grenoble II – Institut Polytechnique de Grenoble - Grenoble Institute of Technology |
|
|
|
|
|
|
|
|
|
| Domaine | : | Informatique/Traitement du signal et de l'image Sciences de l'ingénieur/Traitement du signal et de l'image |
|
|
| Liste des fichiers attachés à ce document : | |||||
|
|||||
|
|
|
| hal-00740666, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00740666 | |
| oai:hal.archives-ouvertes.fr:hal-00740666 | |
| Contributeur : Nicolas Papadakis | |
| Soumis le : Mercredi 10 Octobre 2012, 16:06:23 | |
| Dernière modification le : Mercredi 27 Février 2013, 13:40:01 | |
