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Experiments in Fluids
Erschienen in: Experiments in Fluids 1/2006

01.01.2006 | Research Article

Fluid experimental flow estimation based on an optical-flow scheme

verfasst von: T. Corpetti, D. Heitz, G. Arroyo, E. Mémin, A. Santa-Cruz

Erschienen in: Experiments in Fluids | Ausgabe 1/2006

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Abstract

We present in this paper a novel approach dedicated to the measurement of velocity in fluid experimental flows through image sequences. Unlike most of the methods based on particle image velocimetry (PIV) approaches used in that context, the proposed technique is an extension of “optical-flow” schemes used in the computer vision community, which includes a specific enhancement for fluid mechanics applications. The method we propose enables to provide accurate dense motion fields. It includes an image based integrated version of the continuity equation. This model is associated to a regularization functional, which preserve divergence and vorticity blobs of the motion field. The method was applied on synthetic images and on real experiments carried out to allow a thorough comparison with a state-of-the-art PIV method in conditions of strong local free shear.
Vorheriger Artikel A novel architecture for a super-resolution PIV algorithm developed for the improvement of the resolution of large velocity gradient measurements
Nächster Artikel Natural and forced evolution of a counter rotating vortex pair

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Metadaten
Titel
Fluid experimental flow estimation based on an optical-flow scheme
verfasst von
T. Corpetti
D. Heitz
G. Arroyo
E. Mémin
A. Santa-Cruz
Publikationsdatum
01.01.2006
Verlag
Springer-Verlag
Erschienen in
Experiments in Fluids / Ausgabe 1/2006
Print ISSN: 0723-4864
Elektronische ISSN: 1432-1114
DOI
https://doi.org/10.1007/s00348-005-0048-y

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