Motion Competition: A Variational Approach to Piecewise Parametric Motion Segmentation

Daniel Cremers, Stefano Soatto

Abstract: We present a novel variational approach for segmenting the image plane into a set of regions of parametric motion on the basis of two consecutive frames from an image sequence. Our model is based on a conditional probability for the spatio-temporal image gradient, given a particular velocity model, and on a geometric prior on the estimated motion field favoring motion boundaries of minimal length.