Simultaneous 3D location and size measurement of spherical bubbles using cylindrical interferometric out-of-focus imaging

A cylindrical interferometric out-of-focus imaging set-up is presented for the characterization of spherical bubbles. The design of the set-up is realized using transfer matrix based models. The simultaneous three-dimensional (3D) location and size measurement of bubbles is demonstrated using fast F...

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Bibliographic Details
Published in:Journal of quantitative spectroscopy & radiative transfer 2013-12, Vol.131, p.153-159
Main Authors: Shen, H., Coetmellec, S., Brunel, M.
Format: Article
Language:English
Subjects:
3D imaging
Algorithms
Bubbles
Cylindrical geometry
Engineering Sciences
Fourier transforms
Imaging
Interferometric out-of focus imaging
Interferometry
Optics
Photonic
Radiative transfer
Three dimensional
Three dimensional models
Transfer matrices
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Summary:A cylindrical interferometric out-of-focus imaging set-up is presented for the characterization of spherical bubbles. The design of the set-up is realized using transfer matrix based models. The simultaneous three-dimensional (3D) location and size measurement of bubbles is demonstrated using fast Fourier transform algorithms. Experimental results are in very good agreement with theoretical predictions. •We realize a cylindrical out-of-focus imaging of spherical bubbles.•The method allows the simultaneous 3D location and size measurement of bubbles.•The theoretical design is based on the Generalized Huygens–Fresnel integrals.•Characterization of bubbles is done using fast image processing.
ISSN:0022-4073
1879-1352
DOI:10.1016/j.jqsrt.2013.04.009