Title
MRI Reconstruction Using Markov Random Field and Total Variation as Composite Prior.
Abstract
Reconstruction of magnetic resonance images (MRI) benefits from incorporating a priori knowledge about statistical dependencies among the representation coefficients. Recent results demonstrate that modeling intraband dependencies with Markov Random Field (MRF) models enable superior reconstructions compared to inter-scale models. In this paper, we develop a novel reconstruction method, which includes a composite prior based on an MRF model and Total Variation (TV). We use an anisotropic MRF model and propose an original data-driven method for the adaptive estimation of its parameters. From a Bayesian perspective, we define a new position-dependent type of regularization and derive a compact reconstruction algorithm with a novel soft-thresholding rule. Experimental results show the effectiveness of this method compared to the state of the art in the field.
Year
DOI
Venue
2020
10.3390/s20113185
SENSORS
Keywords
DocType
Volume
magnetic resonance imaging,Markov random field,image reconstruction
Journal
20
Issue
ISSN
Citations 
11
1424-8220
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Marko Panić100.34
Dusan Jakovetic234525.15
Dejan Vukobratović337836.82
Vladimir S. Crnojevic418617.82
Aleksandra Pizurica51238102.29