JSME International Journal Series B Fluids and Thermal Engineering
Online ISSN : 1347-5371
Print ISSN : 1340-8054
ISSN-L : 1340-8054
Application of Kalman Filter to Three-Dimensional Flow Measuring System Based on Digital Image Processing
Katsunori YagohKakuji OgawaraSei-ichi Iida
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1993 Volume 36 Issue 2 Pages 285-293


An alternative method for particle tracking, which is needed in PIV (particle imaging velocimetry), has been developed by applying the Kalman filter. The method improves the precision in measurements of particle positions and of their velocity components. Using this method, it becomes possible to track each particle during more than hundreds of time steps. These effects and the propriety of the applied Kalman filter estimator are proved experimentally by calibrating the behavior of particles which are fixed on a rotating disk. Moreover, the method enables us to acquire data from individual tracer particles in a three-dimensional unsteady flow field.

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