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A Real-Time Visualization System for PIV

  • Toshihito Fujiwara
  • Kenji Fujimoto
  • Tsutomu Maruyama
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2778)

Abstract

Particle image velocimetry (PIV) is a method of imaging and analyzing field of flows. In the PIV method, small windows in an image of the field (time t) are compared with areas around the windows in the another image of the field (time t + Δt), and the most similar part to the windows are searched using two dimensional cross-correlation function. The computational complexity of the function is very huge, and can not be processed in real-time by micro-processors. In this paper, we describe a real-time visualization system for the PIV method. In the system, an improved direct computation method is used to reduce the computational complexity. The system consists of only one off-the-shelf Virtex-II FPGA board and a host computer, and calculates the complex function without reducing data bit-width, which becomes possible with one latest FPGA.

Keywords

Particle Image Velocimetry Clock Cycle Host Computer Memory Bank Particle Image Velocimetry System 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Sakakibara, J., Anzai, T.: Chain-link-fence structures produced in a plane jet. Physics of Fluids (2001)Google Scholar
  2. 2.
    Maruyama, T., Yamaguchi, Y., Kawase, A.: An Approach to Real-Time Visualization of PIV Method with FPGA. In: Brebner, G., Woods, R. (eds.) FPL 2001. LNCS, vol. 2147, p. 601. Springer, Heidelberg (2001)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Toshihito Fujiwara
    • 1
  • Kenji Fujimoto
    • 1
  • Tsutomu Maruyama
    • 1
  1. 1.Institute of Engineering Mechanics and SystemsUniversity of TsukubaTsukuba IbarakiJapan

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