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  Full-field correlation-based image processing for PIV

Nobach, H., Ouellette, N. T., Bodenschatz, E., & Tropea, C. (2005). Full-field correlation-based image processing for PIV. California Institute of Technology, Pasadena (CA), USA: M. Gharib.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-1559-0 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-155A-E
Genre: Proceedings

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 Creators:
Nobach, Holger1, Author              
Ouellette, Nicholas T.1, Author              
Bodenschatz, Eberhard1, Author              
Tropea, C., Author
Affiliations:
1Laboratory for Fluid Dynamics, Pattern Formation and Biocomplexity, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063287              

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 Abstract: Due to its high robustness, correlation-based particle image velocimetry (PIV) has become the prime choice for processing image-based flow measurements in fluid dynamics experiments. However, in recent years, whole-field techniques like optical flow methods have been successfully applied to this kind of images. To avoid the dependence of optical flow methods on intensity variations and to combine the robustness of the correlation-based PIV technique with the whole-field flow description of the optical flow method, a hybrid estimation procedure has been developed. It is an iterative method, optimizing a dense, hypothetical velocity field with respect to vanishing residual displacements, obtained by image correlation.

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 Dates: 2005-09
 Publication Status: Published in print
 Pages: 11 pages
 Publishing info: California Institute of Technology, Pasadena (CA), USA : M. Gharib
 Table of Contents: -
 Rev. Method: -
 Identifiers: eDoc: 281406
 Degree: -

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Title: 6th International Symposium on Particle Image Velocimetry
Place of Event: Pasadena, California, USA
Start-/End Date: 2005-09-21 - 2005-09-23

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