Divergence-Free Motion Estimation

Abstract : This paper describes an innovative approach to estimate motion from image observations of divergence-free flows. Unlike most state-of-the-art methods, which only minimize the divergence of the motion field, our approach utilizes the vorticity-velocity formalism in order to construct a motion field in the subspace of divergence free functions. A 4DVAR-like image assimilation method is used to generate an estimate of the vorticity field given image observations. Given that vorticity estimate, the motion is obtained solving the Poisson equation. Results are illustrated on synthetic image observations and compared to those obtained with state-of-the-art methods, in order to quantify the improvements brought by the presented approach. The method is then applied to ocean satellite data to demonstrate its performance on the real images.
Type de document :
Communication dans un congrès
Andrew Fitzgibbon and Svetlana Lazebnik and Pietro Perona and Yoichi Sato and Cordelia Schmid. ECCV 2012 - European Conference on Computer Vision, Oct 2012, Florence, Italy. Springer, 7575, pp.15-27, 2012, Lecture Notes in Computer Science. 〈10.1007/978-3-642-33765-9_2〉
Liste complète des métadonnées

Littérature citée [26 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/hal-00742021
Contributeur : Nathalie Gaudechoux <>
Soumis le : vendredi 15 novembre 2013 - 17:07:06
Dernière modification le : mardi 17 avril 2018 - 11:30:58
Document(s) archivé(s) le : dimanche 16 février 2014 - 02:40:21

Fichier

Herlin-all-ECCV-2012.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

Citation

Isabelle Herlin, Dominique Béréziat, Nicolas Mercier, Sergiy Zhuk. Divergence-Free Motion Estimation. Andrew Fitzgibbon and Svetlana Lazebnik and Pietro Perona and Yoichi Sato and Cordelia Schmid. ECCV 2012 - European Conference on Computer Vision, Oct 2012, Florence, Italy. Springer, 7575, pp.15-27, 2012, Lecture Notes in Computer Science. 〈10.1007/978-3-642-33765-9_2〉. 〈hal-00742021〉

Partager

Métriques

Consultations de la notice

474

Téléchargements de fichiers

340