José A. Iglesias and Clemens Kirisits
5Convective regularization for optical flow
José A. Iglesias, Computational Science Center (CSC), University of Vienna, Vienna, Austria, e-mail:jose.iglesias@univie.ac.at
Clemens Kirisits, Johann Radon Institute for Computational and Applied Mathematics (RICAM),Austrian Academy of Sciences, Linz, Austria, e-mail: clemens.kirisits@ricam.oeaw.ac.at
Abstract: We argue that the time derivative in a fixed coordinate frame may not be the most appropriate measure of time regularity of an optical flow field. Instead, for a given velocity field υ we consider the convective acceleration υt +∇υυ which describes the acceleration of objects moving according to υ. Consequently, we investigate the suitability of the nonconvex ...
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