Abstract : This article describes the implementation of a simple wavelet-based optical-flow motion estimator dedicated to continuous motions such as fluid flows. The wavelet representation of the unknown velocity field is considered. This scale-space representation, associated to a simple gradient-based optimization algorithm, sets up a well-defined multiresolution framework for the optical flow estimation. Moreover, a very simple closure mechanism, approaching locally the solution by high-order polynomials, is provided by truncating the wavelet basis at fine scales. Accuracy and efficiency of the proposed method is evaluated on image sequences of turbulent fluid flows.
Type de document :
Article dans une revue
Numerical Mathematics: Theory, Methods and Applications, Global Science Press, 2013, 6, pp.116-137
https://hal.inria.fr/hal-00737566
Contributeur : Pierre Dérian
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Soumis le : mardi 2 octobre 2012 - 11:16:46
Dernière modification le : mercredi 11 avril 2018 - 02:00:46
Document(s) archivé(s) le : vendredi 16 décembre 2016 - 19:27:29
