mr image reconstruction based on iterative split bregman algorithm and nonlocal total variation
;Varun P. Gopi;P. Palanisamy;Khan A. Wahid;Paul Babyn
advanced functional materials2013Vol. 2013pp. -
161
gopi2013computationalmr
Abstract
This paper introduces an efficient algorithm for magnetic resonance (MR) image reconstruction. The proposed method minimizes a linear combination of nonlocal total variation
and least-square data-fitting term to reconstruct the MR images from undersampled k-space data. The nonlocal total variation is taken as the L1-regularization functional and solved using Split Bregman iteration. The proposed algorithm is compared with previous methods in terms of the reconstruction accuracy and computational complexity. The comparison results demonstrate the superiority of the proposed algorithm for compressed MR image reconstruction.