Multiple-plane particle image velocimetry using a light-field camera

Skupsch, C. & Brücker, C. (2013). Multiple-plane particle image velocimetry using a light-field camera. Optics Express, 21(2), pp. 1726-1740. doi: 10.1364/OE.21.001726

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Abstract

Planar velocity fields in flows are determined simultaneously on parallel measurement planes by means of an in-house manufactured light-field camera. The planes are defined by illuminating light sheets with constant spacing. Particle positions are reconstructed from a single 2D recording taken by a CMOS-camera equipped with a high-quality doublet lens array. The fast refocusing algorithm is based on synthetic-aperture particle image velocimetry (SAPIV). The reconstruction quality is tested via ray-tracing of synthetically generated particle fields. The introduced single-camera SAPIV is applied to a convective flow within a measurement volume of 30 x 30 x 50 mm³.

Item Type: Article
Additional Information: © 2013 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.
Uncontrolled Keywords: Three-dimensional image processing; Imaging systems; Three-dimensional image acquisition; Velocimetry.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: School of Engineering & Mathematical Sciences > Engineering
URI: http://openaccess.city.ac.uk/id/eprint/16750

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