Title
A novel nonlocal MRI reconstruction algorithm with patch-based low rank regularization
Abstract
Compressive Sensing Magnetic Resonance Imaging (CSMRI) exploits sparsity of medical images to reconstruct them accurately from undersampled k-space data. In this paper, we propose a novel patch-based nonlocal MRI reconstruction algorithm with low-rank regularization to exploit the structural sparsity of the observed data. In the proposed algorithm, the low-rank regularization is transformed into the nuclear norm minimization problem then the problem is solved by the Singular Value Thresholding (SVT) method with adaptive thresholds estimation and the Alternative Direction Multiplier Method(ADMM). Experimental results show the proposed MRI reconstruction method outperforms many existing algorithms in CSMRI.
Year
DOI
Venue
2015
10.1109/GlobalSIP.2015.7418225
2015 IEEE Global Conference on Signal and Information Processing (GlobalSIP)
Keywords
Field
DocType
Compressed sensing,MRI reconstruction,nonlocal,low rank,alternative direction multiplier method
Iterative reconstruction,Computer vision,Medical imaging,Multiplier method,Algorithm,Reconstruction algorithm,Regularization (mathematics),Linear programming,Artificial intelligence,Real-time MRI,Compressed sensing,Mathematics
Conference
Citations 
PageRank 
References 
2
0.36
16
Authors
4
Name
Order
Citations
PageRank
Liyan Sun173.16
Jinchu Chen220.70
Delu Zeng316411.46
Xinghao Ding459152.95