Fast and efficient particle reconstruction on a 3D grid using sparsity

We propose an approach for efficient localization and intensity reconstruction of particles on a 3D grid based on sparsity principles. The computational complexity of the method is limited by using the particle volume reconstruction paradigm (Champagnat et al. in Meas Sci Technol 25, 2014 ) and a re...

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Bibliographic Details
Published in:Experiments in fluids 2015-03, Vol.56 (3), Article 62
Main Authors: Cornic, P., Champagnat, F., Cheminet, A., Leclaire, B., Le Besnerais, G.
Format: Article
Language:English
Subjects:
Engineering
Engineering Fluid Dynamics
Engineering Thermodynamics
Fluid- and Aerodynamics
Heat and Mass Transfer
Letter
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Summary:We propose an approach for efficient localization and intensity reconstruction of particles on a 3D grid based on sparsity principles. The computational complexity of the method is limited by using the particle volume reconstruction paradigm (Champagnat et al. in Meas Sci Technol 25, 2014 ) and a reduction in the problem dimension. Tests on synthetic and experimental data show that the proposed method leads to more efficient detections and to reconstructions of higher quality than classical tomoPIV approaches on a large range of seeding densities, up to ppp ≈ 0.12.
ISSN:0723-4864
1432-1114
DOI:10.1007/s00348-015-1933-7