Optical Flow and Phase Portrait Methods for Environmental Satellite Image Sequences

Abstract : We present in this paper a motion computation and interpretation framework for oceanographic satellite images. This framework is based on the use of a non quadratic regularization technique in optical flow computation that preserves flow discontinuities. We also show that using an appropriate tessellation of the image according to an estimate of the motion field can improve optical flow accuracy and yields more reliable flows. This method defines a non uniform multiresolution scheme that refines mesh resolution only in the neighborhood of moving structures. The second part of the paper deals with the interpretation of the obtained displacement field. We use a phase portrait model with a new formulation of the approximation of an oriented flow field. This allows us to consider arbitrary polynomial phase portrait models for characterizing salient flow features. This new framework is used for processing oceanographic and atmospheric image sequences and presents an alternative to the very complex physical modelling techniques.
Type de document :
Communication dans un congrès
Springer-Verlag. Proceedings of European Conference on Computer Vision (ECCV), Apr 1996, Cambridge, United Kingdom. 1065, pp.141-150, 1996, Lecture Notes in Computer Science. 〈10.1007/3-540-61123-1_134〉
Liste complète des métadonnées

Littérature citée [16 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/inria-00626437
Contributeur : Nathalie Gaudechoux <>
Soumis le : mercredi 20 avril 2016 - 14:20:27
Dernière modification le : mardi 17 avril 2018 - 11:25:57
Document(s) archivé(s) le : mardi 15 novembre 2016 - 08:01:06

Fichier

Cohen-ECCV-1996.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

Citation

Isaac Cohen, Isabelle Herlin. Optical Flow and Phase Portrait Methods for Environmental Satellite Image Sequences. Springer-Verlag. Proceedings of European Conference on Computer Vision (ECCV), Apr 1996, Cambridge, United Kingdom. 1065, pp.141-150, 1996, Lecture Notes in Computer Science. 〈10.1007/3-540-61123-1_134〉. 〈inria-00626437〉

Partager

Métriques

Consultations de la notice

150

Téléchargements de fichiers

88