{\rtf1\ansi\deff0\deftab360 {\fonttbl {\f0\fswiss\fcharset0 Arial} {\f1\froman\fcharset0 Times New Roman} {\f2\fswiss\fcharset0 Verdana} {\f3\froman\fcharset2 Symbol} } {\colortbl; \red0\green0\blue0; } {\info {\author Biblio 7.x}{\operator }{\title Biblio RTF Export}} \f1\fs24 \paperw11907\paperh16839 \pgncont\pgndec\pgnstarts1\pgnrestart Ruhnau, P, Kohlberger, T, Nobach, H and Schn\'f6rr, C (2005). Variational Optical Flow Estimation for Particle Image Velocimetry. Experiments in Fluids. 38 21--32\par \par Ruhnau, P, Kohlberger, T, Nobach, H and Schn\'f6rr, C (2005). Variational Optical Flow Estimation for Particle Image Velocimetry. Experiments in Fluids. 38 21?32\par \par Ruhnau, P, Kohlberger, T, Nobach, H and Schn\'f6rr, C (2004). Variational Optical Flow Estimation for Particle Image Velocimetry. Proc. Lasermethoden in der Str\'f6mungsme\'dftechnik. Deutsche Gesellschaft f\'fcr Laser-Anemometrie GALA e.V., Karlsruhe\par \par }