Backward Optimized Orthogonal Matching Pursuit
arXiv:math/0401279 · doi:10.1109/LSP.2004.833503
Abstract
A recursive approach for shrinking coefficients of an atomic decomposition is proposed. The corresponding algorithm evolves so as to provide at each iteration a) the orthogonal projection of a signal onto a reduced subspace and b) the index of the coefficient to be disregarded in order to construct a coarser approximation minimizing the norm of the residual error.
Accpeted for publication in IEEE Signal Processing Letters- 15 pages