Title
MRF based joint registration and segmentation of dynamic renal MR images
Abstract
Joint registration and segmentation (JRS) is an effective approach to combine the complementary information of segmentation labels with registration parameters. While most such integrated approaches have been tested on static images, in this work we focus on JRS of dynamic image sequences. For dynamic contrast enhanced images, previous works have focused on multi-stage approaches that interleave registration and segmentation. We propose a Markov random field (MRF) based solution which uses saliency, intensity, edge orientation and segmentation labels for JRS of renal perfusion images. An expectation-maximization (EM) framework is used where the entire image sequence is first registered followed by updating the segmentation labels. Experiments on real patient datasets exhibiting elastic deformations demonstrate the effectiveness of our MRF-based JRS approach.
Year
DOI
Venue
2010
10.1117/12.853474
Proceedings of SPIE
Keywords
DocType
Volume
Saliency,registration,segmentation labels,MRFs,perfusion MRI
Conference
7546
ISSN
Citations 
PageRank 
0277-786X
2
0.36
References 
Authors
6
2
Name
Order
Citations
PageRank
Dwarikanath Mahapatra131233.71
Ying Sun222419.86