Abstract

. In this paper we dene a complete framework for processing large image sequences for a global monitoring of short range oceanographic and atmospheric processes. This framework is based on the use of a non quadratic regularization technique in optical ow computation that preserves ow discontinuities. We also show that using an appropriate tessellation of the image according to an estimate of the motion eld can improve optical ow accuracy and yields more reliable ows. This method denes a non uniform multiresolution approach for coarse to ne grid generation. It allows to locally increase the resolution of the grid according to the studied problem. Each added node renes the grid in a region of interest and increases the numerical accuracy of the solution in this region. We make use of such a method for solving the optical ow equation with a non quadratic regularization scheme allowing the computation of optical ow eld while preserving its discontinuities. The second part of th...

Citations