000001764 001__ 1764
000001764 005__ 20141118153455.0
000001764 04107 $$acze
000001764 046__ $$k2010-05-10
000001764 100__ $$aGronát, P.
000001764 24500 $$aHigh-quality vector field and direct vorticity estimation using the affine correlation method

000001764 24630 $$n16$$pEngineering Mechanics 2010
000001764 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Prague
000001764 506__ $$arestricted
000001764 520__ $$2eng$$aIn 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. Subsequently, using these parameters, both displacement and vorticity can be computed, hence, the vorticty is being obtained for every single point directly during the correlation procedure.

000001764 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000001764 653__ $$a

000001764 7112_ $$aEngineering Mechanics 2010$$cSvratka (CZ)$$d2010-05-10 / 2010-05-13$$gEM2010
000001764 720__ $$aGronát, P.
000001764 8560_ $$ffischerc@itam.cas.cz
000001764 8564_ $$s338916$$uhttps://invenio.itam.cas.cz/record/1764/files/Gronat-086-PT.pdf$$y
             Original version of the author's contribution as presented on CD, FLU.
            
000001764 962__ $$r1750
000001764 980__ $$aPAPER