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Statements

Subject Item
n2:RIV%2F61388998%3A_____%2F10%3A00352083%21RIV11-GA0-61388998
rdf:type
skos:Concept n15:Vysledek
dcterms:description
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.
dcterms:title
High-Quality Vector Field and Direct Jacobian Estimation High-Quality Vector Field and Direct Jacobian Estimation
skos:prefLabel
High-Quality Vector Field and Direct Jacobian Estimation High-Quality Vector Field and Direct Jacobian Estimation
skos:notation
RIV/61388998:_____/10:00352083!RIV11-GA0-61388998
n3:aktivita
n14:P n14:Z
n3:aktivity
P(GA101/08/1112), P(GAP101/10/1230), Z(AV0Z20760514)
n3:dodaniDat
n5:2011
n3:domaciTvurceVysledku
n20:6835791
n3:druhVysledku
n6:D
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n13:predkladatel
n3:idSjednocenehoVysledku
261594
n3:idVysledku
RIV/61388998:_____/10:00352083
n3:jazykVysledku
n11:eng
n3:klicovaSlova
PIV; normalized cross correlation; affine transformation
n3:klicoveSlovo
n16:normalized%20cross%20correlation n16:PIV n16:affine%20transformation
n3:kontrolniKodProRIV
[FE29C1365AC4]
n3:mistoKonaniAkce
Holany – Litice
n3:mistoVydani
Praha
n3:nazevZdroje
24th Symposium on Anemometry
n3:obor
n4:BK
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
1
n3:projekt
n19:GA101%2F08%2F1112 n19:GAP101%2F10%2F1230
n3:rokUplatneniVysledku
n5:2010
n3:tvurceVysledku
Gronát, Petr
n3:typAkce
n8:EUR
n3:zahajeniAkce
2010-06-01+02:00
n3:zamer
n12:AV0Z20760514
s:numberOfPages
2
n21:hasPublisher
Institute of Hydrodynamics ASCR, v. v. i.
n10:isbn
978-80-87117-07-1