Skip to Main content Skip to Navigation
New interface
Journal articles

Identification of velocity fields for geophysical fluids from a sequence of images

Didier Auroux 1 Jérôme Fehrenbach 2 
1 MOISE - Modelling, Observations, Identification for Environmental Sciences
Inria Grenoble - Rhône-Alpes, LJK - Laboratoire Jean Kuntzmann, Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology
Abstract : We propose an algorithm to estimate the motion between two images. This algorithm is based on the nonlinear brightness constancy assumption. The number of unknowns is reduced by considering displacement fields that are piecewise linear with respect to each space variable, and the Jacobian matrix of the cost function to be minimized is assembled rapidly using a finite element method. Different regularization terms are considered, and a multiscale approach provides fast and efficient convergence properties. Several numerical results of this algorithm on simulated and real geophysical flows are presented and discussed.
Document type :
Journal articles
Complete list of metadata

Cited literature [22 references]  Display  Hide  Download
Contributor : Didier Auroux Connect in order to contact the contributor
Submitted on : Friday, October 10, 2008 - 1:46:11 PM
Last modification on : Tuesday, October 25, 2022 - 11:58:10 AM
Long-term archiving on: : Monday, June 7, 2010 - 6:38:20 PM


Files produced by the author(s)


  • HAL Id : inria-00328990, version 1


Didier Auroux, Jérôme Fehrenbach. Identification of velocity fields for geophysical fluids from a sequence of images. Experiments in Fluids, 2011, 50 (2), pp.313-328. ⟨inria-00328990⟩



Record views


Files downloads