Title
Temporal Registration in In-Utero Volumetric MRI Time Series.
Abstract
We present a robust method to correct for motion and deformations in in-utero volumetric MRI time series. Spatio-temporal analysis of dynamic MRI requires robust alignment across time in the presence of substantial and unpredictable motion. We make a Markov assumption on the nature of deformations to take advantage of the temporal structure in the image data. Forward message passing in the corresponding hidden Markov model (HMM) yields an estimation algorithm that only has to account for relatively small motion between consecutive frames. We demonstrate the utility of the temporal model by showing that its use improves the accuracy of the segmentation propagation through temporal registration. Our results suggest that the proposed model captures accurately the temporal dynamics of deformations in in-utero MRI time series.
Year
DOI
Venue
2016
10.1007/978-3-319-46726-9_7
MICCAI
DocType
Volume
Citations 
Conference
abs/1608.03907
2
PageRank 
References 
Authors
0.37
11
7
Name
Order
Citations
PageRank
Ruizhi Liao182.36
Esra A. Turk243.10
Miaomiao Zhang313226.12
Jie Luo4125.58
P Ellen Grant520520.81
Elfar Adalsteinsson612916.18
Polina Golland71690114.38