Title :
Reconstruction of vector field in fluid measurement
Author :
Zhang, Y. ; Huang, T.S. ; Adrian, R.J.
Author_Institution :
Beckman Inst. for Adv. Sci. & Technol., Illinois Univ., Urbana, IL, USA
Abstract :
A new approach of image processing is proposed to enhance the spatial resolution of fluid flow field measurement. The local estimate velocity is first found in a sub-image region. The particles in the region are then located individually. The corresponding particles are matched by using the estimate velocity and the particle locations in conjunction, making it possible to produce mole velocity measurements from the smallest particle image velocimetry (PIV) measurement sub-region. The proposed method has been proved successful by testing the experimental result from Urushihara et al. (1986)
Keywords :
flow; flow measurement; image reconstruction; image resolution; turbulence; velocimeters; velocity measurement; estimate velocity; experimental result; fluid flow field measurement; image processing; image reconstruction; local estimate velocity; mole velocity measurements; particle image velocimetry; particle locations; spatial resolution; subimage region; turbulent pipe flow; vector field; Autocorrelation; Coordinate measuring machines; Fluid flow; Image analysis; Image processing; Image reconstruction; Particle measurements; Particle tracking; Spatial resolution; Testing; Velocity measurement;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1995. ICASSP-95., 1995 International Conference on
Conference_Location :
Detroit, MI
Print_ISBN :
0-7803-2431-5
DOI :
10.1109/ICASSP.1995.480097
