Fluid experimental flow estimation based on an optical-flow scheme

被引:1
作者
T. Corpetti
D. Heitz
G. Arroyo
E. Mémin
A. Santa-Cruz
机构
[1] avenue de Cucillé,IRISA/INRIA Campus
[2] Universitaire de Beaulieu,Laboratoire COSTEL UMR 6554 LETG
[3] Maison de la Recherche,undefined
来源
Experiments in Fluids | 2006年 / 40卷
关键词
Fluid motion measurement; Continuity equation; Div–curl regularization; Optical-flow; PIV;
D O I
暂无
中图分类号
学科分类号
摘要
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.
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页码:80 / 97
页数:17
相关论文
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