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21 June 2019 A hybrid method for velocity field of fluid flow estimation based on optical flow
Grzegorz Głomb, Grzegorz Świrniak
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Proceedings Volume 11056, Optical Measurement Systems for Industrial Inspection XI; 110563S (2019) https://doi.org/10.1117/12.2525711
Event: SPIE Optical Metrology, 2019, Munich, Germany
Abstract
The paper describes a hybrid method for estimating flow-velocity vector fields from Particle Image Velocimetry (PIV) images that combines a cross-correlation technique with a multiresolution estimation based on optical flow with the aim of obtaining the highest possible spatial resolution. The method offers the possibility to determine one vector per seeding particle. The manuscript examines accuracy of the estimates compared to other known methods using various standard test images. Experimental results are also presented.
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Grzegorz Głomb and Grzegorz Świrniak "A hybrid method for velocity field of fluid flow estimation based on optical flow", Proc. SPIE 11056, Optical Measurement Systems for Industrial Inspection XI, 110563S (21 June 2019); https://doi.org/10.1117/12.2525711
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KEYWORDS
Particles
Optical flow
Spatial resolution
Error analysis
Evolutionary algorithms
Algorithm development
Image analysis
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