In this section
Several of our current PhD candidates and fellow researchers at the Data Science Institute have published, or in the proccess of publishing, papers to present their research.
@inproceedings{Schlemper:2018:10.1007/978-3-030-00129-2_8,
author = {Schlemper, J and Castro, DC and Bai, W and Qin, C and Oktay, O and Duan, J and Price, AN and Hajnal, J and Rueckert, D},
doi = {10.1007/978-3-030-00129-2_8},
pages = {64--71},
publisher = {Springer, Cham},
title = {Bayesian deep learning for accelerated MR image reconstruction},
url = {http://dx.doi.org/10.1007/978-3-030-00129-2_8},
year = {2018}
}
TY - CPAPER
AB - Recently, many deep learning (DL) based MR image reconstruction methods have been proposed with promising results. However, only a handful of work has been focussing on characterising the behaviour of deep networks, such as investigating when the networks may fail to reconstruct. In this work, we explore the applicability of Bayesian DL techniques to model the uncertainty associated with DL-based reconstructions. In particular, we apply MC-dropout and heteroscedastic loss to the reconstruction networks to model epistemic and aleatoric uncertainty. We show that the proposed Bayesian methods achieve competitive performance when the test images are relatively far from the training data distribution and outperforms when the baseline method is over-parametrised. In addition, we qualitatively show that there seems to be a correlation between the magnitude of the produced uncertainty maps and the error maps, demonstrating the potential utility of the Bayesian DL methods for assessing the reliability of the reconstructed images.
AU - Schlemper,J
AU - Castro,DC
AU - Bai,W
AU - Qin,C
AU - Oktay,O
AU - Duan,J
AU - Price,AN
AU - Hajnal,J
AU - Rueckert,D
DO - 10.1007/978-3-030-00129-2_8
EP - 71
PB - Springer, Cham
PY - 2018///
SN - 0302-9743
SP - 64
TI - Bayesian deep learning for accelerated MR image reconstruction
UR - http://dx.doi.org/10.1007/978-3-030-00129-2_8
UR - https://link.springer.com/10.1007%2F978-3-030-00129-2_8
ER -
Data Science Institute
William Penney Laboratory
Imperial College London
South Kensington Campus
London SW7 2AZ
United Kingdom
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