Optshrink LR + S: accelerated fMRI reconstruction using non-convex optimal singular value shrinkage.

Brain Inform. 2017 Jan 10;:

Authors: Aggarwal P, Shrivastava P, Kabra T, Gupta A

Abstract
This paper presents a new accelerated fMRI reconstruction method, namely, OptShrink LR + S method that reconstructs undersampled fMRI data using a linear combination of low-rank and sparse components. The low-rank component has been estimated using non-convex optimal singular value shrinkage algorithm, while the sparse component has been estimated using convex l (1) minimization. The performance of the proposed method is compared with the existing state-of-the-art algorithms on real fMRI dataset. The proposed OptShrink LR + S method yields good qualitative and quantitative results.

PMID: 28074352 [PubMed - as supplied by publisher]