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  • In this paper, a correlation method for direct vorticity computation of the fluid velocity field is introduced. The correlation method allows an affine transformation of a correlation window. It is shown that Lagrangian field of displacements, considering the linear terms only, satisfies the requirements for affine transformation and using the Normalized-Cross-Correlation (NCC) together with affine transformation and Newton-Raphson iterative method, six parameters defining this transformation can be estimated. Using these parameters, both displacement and vorticity can be computed directly without differentiation of the vector field.
  • In this paper, a correlation method for direct vorticity computation of the fluid velocity field is introduced. The correlation method allows an affine transformation of a correlation window. It is shown that Lagrangian field of displacements, considering the linear terms only, satisfies the requirements for affine transformation and using the Normalized-Cross-Correlation (NCC) together with affine transformation and Newton-Raphson iterative method, six parameters defining this transformation can be estimated. Using these parameters, both displacement and vorticity can be computed directly without differentiation of the vector field. (en)
Title
  • High-Quality Vector Field and Direct Jacobian Estimation
  • High-Quality Vector Field and Direct Jacobian Estimation (en)
skos:prefLabel
  • High-Quality Vector Field and Direct Jacobian Estimation
  • High-Quality Vector Field and Direct Jacobian Estimation (en)
skos:notation
  • RIV/61388998:_____/10:00352083!RIV11-GA0-61388998
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA101/08/1112), P(GAP101/10/1230), Z(AV0Z20760514)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 261594
http://linked.open...ai/riv/idVysledku
  • RIV/61388998:_____/10:00352083
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • PIV; normalized cross correlation; affine transformation (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [FE29C1365AC4]
http://linked.open...v/mistoKonaniAkce
  • Holany – Litice
http://linked.open...i/riv/mistoVydani
  • Praha
http://linked.open...i/riv/nazevZdroje
  • 24th Symposium on Anemometry
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Gronát, Petr
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
http://linked.open...n/vavai/riv/zamer
number of pages
http://purl.org/ne...btex#hasPublisher
  • Institute of Hydrodynamics ASCR, v. v. i.
https://schema.org/isbn
  • 978-80-87117-07-1
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