Particle Image Velocimetry with Optical Flow

Georges Quénot 1 Jaroslaw Pakleza Tomasz Kowalewski
1 MRIM - Modélisation et Recherche d’Information Multimédia [Grenoble]
LIG - Laboratoire d'Informatique de Grenoble, Inria - Institut National de Recherche en Informatique et en Automatique
Abstract : An Optical Flow technique based on the use of Dynamic Programming has been applied to Particle Image Velocimetry yielding a significant increase in the accuracy and spatial resolution of the velocity field. Results are presented for calibrated synthetic sequences of images and for sequences of real images taken for a thermally driven flow of water with a freezing front. The accuracy remains better than 0.5 pixel/frame for tested two-image sequences and 0.2 pixel/frame for four-image sequences, even with a 10% added noise level and allowing 10% of particles to appear or disappear. A velocity vector is obtained for every pixel of the image.
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Article dans une revue
Experiments in Fluids, Springer Verlag (Germany), 1998, 25 (3), pp.177--189
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https://hal.inria.fr/hal-00953823
Contributeur : Marie-Christine Fauvet <>
Soumis le : vendredi 28 février 2014 - 16:01:53
Dernière modification le : mardi 24 avril 2018 - 13:32:28

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  • HAL Id : hal-00953823, version 1

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Georges Quénot, Jaroslaw Pakleza, Tomasz Kowalewski. Particle Image Velocimetry with Optical Flow. Experiments in Fluids, Springer Verlag (Germany), 1998, 25 (3), pp.177--189. 〈hal-00953823〉

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