Anisotropic Huber-L1 Optical Flow

Manuel Werlberger, Werner Trobin, Thomas Pock, Andreas Wedel, Daniel Cremers, Horst Bischof
2009 Procedings of the British Machine Vision Conference 2009  
The presented work is motivated by the problem of restoring severely degraded historic video material via an optical flow-based interpolation. In order to increase the robustness as well as the accuracy of discontinuity preserving variational optical flow models, we propose two extensions. First, we will discuss the deficiencies of an isotropic Total Variation regularization and introduce an anisotropic (i.e. image-driven) regularization based on the robust Huber norm. Second, to cope with the
more » ... ross outliers contained in historic video material, we propose a novel spatio-temporal regularization approach. Instead of assuming gradual flow changes over time, we impose a symmetry constraint with respect to a central frame. The benefit of the suggested enhancements is illustrated qualitatively on historic video material and quantitatively on the Middlebury optical flow benchmark.
doi:10.5244/c.23.108 dblp:conf/bmvc/WerlbergerTPWCB09 fatcat:q4c3nqzjbjc5rkl7ycweevjdmi