Primal-dual optimization strategies in Huber-L1 optical flow with temporal subspace constraints for non-rigid sequence registration
作者：
Highlights：
• We study Fenchel-Duality principles for general and relaxed optical flow problems.
• We derive seven primal-dual optimization strategies in Huber-L1 optical flow.
• The considered optical flow framework uses temporal subspace constraints.
• The best outcome strategy is the simplest form of Chambolle-Pock algorithm.
• This strategy was not proposed in previous works for the considered framework.
摘要
•We study Fenchel-Duality principles for general and relaxed optical flow problems.•We derive seven primal-dual optimization strategies in Huber-L1 optical flow.•The considered optical flow framework uses temporal subspace constraints.•The best outcome strategy is the simplest form of Chambolle-Pock algorithm.•This strategy was not proposed in previous works for the considered framework.
论文关键词：Convex optimization,Fenchel-Duality,Primal-dual,Preconditioning,Optical flow,Non-rigid sequence registration,Temporal consistency,Subspace constraints
论文评审过程：Received 26 February 2016, Revised 16 November 2017, Accepted 18 November 2017, Available online 23 November 2017, Version of Record 1 December 2017.
论文官网地址：https://doi.org/10.1016/j.imavis.2017.11.005
