Video frame segmentation using competitive contours

The paper presents a technique for the segmentation of colour images from video sequences. The technique is aimed at the extraction of multiple objects in the presence of background motion, and without global motion compensation. A modified version of the Multi-label Fast Marching algorithm is used in the segmentation process. The most important modification allows segment merging as well as pushing back borders of other segments. Thanks to this, the limitation of a one-way propagation for fast marching is removed. The experiments described in this paper are restricted to video sequences with translational motion of rigid objects only. The side effect of the algorithm is the regularized motion field.