Experiments in Fluids

, 61:26 | Cite as

Three-dimensional particle tracking velocimetry using shallow neural network for real-time analysis

  • Yeonghyeon Gim
  • Dong Kyu Jang
  • Dong Kee Sohn
  • Hyoungsoo KimEmail author
  • Han Seo KoEmail author
Research Article


Three-dimensional particle tracking velocimetry (3D-PTV) technique is widely used to acquire the complicated trajectories of particles and flow fields. It is known that the accuracy of 3D-PTV depends on the mapping function to reconstruct three-dimensional particles locations. The mapping function becomes more complicated if the number of cameras is increased and there is a liquid–vapor interface, which crucially affect the total computation time. In this paper, using a shallow neural network model, we dramatically decrease the computation time with a high accuracy to successfully reconstruct the three-dimensional particle positions, which can be used for real-time particle detection for 3D-PTV. The developed technique is verified by numerical simulations and applied to measure a complex solutal Marangoni flow patterns inside a binary mixture droplet.

Graphic abstract



National Research Foundation of Korea (NRF) (NRF-2019R1A2C2003176 and NRF-2018R1C1B6004190)


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of Mechanical EngineeringSungkyunkwan UniversitySuwonSouth Korea
  2. 2.School of Mechanical EngineeringKAISTDaejeonSouth Korea

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