Optics (Aug 2022)

3D-Tracking of Sand Particles in a Wave Flume Using Interferometric Imaging

  • Marc Brunel,
  • Lila Ouldarbi,
  • Alexandre Fahy,
  • Gaële Perret

DOI
https://doi.org/10.3390/opt3030025
Journal volume & issue
Vol. 3, no. 3
pp. 254 – 267

Abstract

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We report the 3D-tracking of irregular sand particles in a wave flume using a cylindrical interferometric particle imaging set-up. The longitudinal position of each particle is deduced from the ellipticity of its speckle-like interferometric image. The size of a particle is determined from the analysis of the 2D Fourier transform of its defocused image. It is further possible to identify some rotation of the particles. Simulations accurately confirm the experimental determination of the different parameters (3D position and size of each particle).

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