TY - JOUR T1 - Convex Variational Formulation with Smooth Coupling for Multicomponent Signal Decomposition and Recovery AU - Luis M. BriceƱo-Arias & Patrick L. Combettes JO - Numerical Mathematics: Theory, Methods and Applications VL - 4 SP - 485 EP - 508 PY - 2009 DA - 2009/02 SN - 2 DO - http://doi.org/10.4208/nmtma.2009.m9009s UR - https://global-sci.org/intro/article_detail/nmtma/6037.html KW - Convex optimization, denoising, image restoration, proximal algorithm, signal decomposition, signal recovery. AB -
A convex variational formulation is proposed to solve multicomponent signal processing problems in Hilbert spaces. The cost function consists of a separable term, in which each component is modeled through its own potential, and of a coupling term, in which constraints on linear transformations of the components are penalized with smooth functionals. An algorithm with guaranteed weak convergence to a solution to the problem is provided. Various multicomponent signal decomposition and recovery applications are discussed.