Dual consistent pseudo label generation for multi-source domain adaptation without source data for medical image segmentation

IntroductionUnsupervised domain adaptation (UDA) aims to adapt a model learned from the source domain to the target domain. Thus, the model can obtain transferable knowledge even in target domain that does not have ground truth in this way. In medical image segmentation scenarios, there exist divers...

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Main Authors: Binke Cai, Liyan Ma, Yan Sun
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-06-01
Series:Frontiers in Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fnins.2023.1209132/full
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author Binke Cai
Liyan Ma
Yan Sun
author_facet Binke Cai
Liyan Ma
Yan Sun
author_sort Binke Cai
collection DOAJ
description IntroductionUnsupervised domain adaptation (UDA) aims to adapt a model learned from the source domain to the target domain. Thus, the model can obtain transferable knowledge even in target domain that does not have ground truth in this way. In medical image segmentation scenarios, there exist diverse data distributions caused by intensity in homogeneities and shape variabilities. But multi source data may not be freely accessible, especially medical images with patient identity information.MethodsTo tackle this issue, we propose a new multi-source and source-free (MSSF) application scenario and a novel domain adaptation framework where in the training stage, we only get access to the well-trained source domain segmentation models without source data. First, we propose a new dual consistency constraint which uses domain-intra and domain-inter consistency to filter those predictions agreed by each individual domain expert and all domain experts. It can serve as a high-quality pseudo label generation method and produce correct supervised signals for target domain supervised learning. Next, we design a progressive entropy loss minimization method to minimize the class-inter distance of features, which is beneficial to enhance domain-intra and domain-inter consistency in turn.ResultsExtensive experiments are performed for retinal vessel segmentation under MSSF condition and our approach produces impressive performance. The sensitivity metric of our approach is highest and it surpasses other methods with a large margin.DiscussionIt is the first attempt to conduct researches on the retinal vessel segmentation task under multi-source and source-free scenarios. In medical applications, such adaptation method can avoid the privacy issue. Furthermore, how to balance the high sensitivity and high accuracy need to be further considered.
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spelling doaj.art-359edf2830974eb5818be7180930e72f2023-06-26T06:39:13ZengFrontiers Media S.A.Frontiers in Neuroscience1662-453X2023-06-011710.3389/fnins.2023.12091321209132Dual consistent pseudo label generation for multi-source domain adaptation without source data for medical image segmentationBinke CaiLiyan MaYan SunIntroductionUnsupervised domain adaptation (UDA) aims to adapt a model learned from the source domain to the target domain. Thus, the model can obtain transferable knowledge even in target domain that does not have ground truth in this way. In medical image segmentation scenarios, there exist diverse data distributions caused by intensity in homogeneities and shape variabilities. But multi source data may not be freely accessible, especially medical images with patient identity information.MethodsTo tackle this issue, we propose a new multi-source and source-free (MSSF) application scenario and a novel domain adaptation framework where in the training stage, we only get access to the well-trained source domain segmentation models without source data. First, we propose a new dual consistency constraint which uses domain-intra and domain-inter consistency to filter those predictions agreed by each individual domain expert and all domain experts. It can serve as a high-quality pseudo label generation method and produce correct supervised signals for target domain supervised learning. Next, we design a progressive entropy loss minimization method to minimize the class-inter distance of features, which is beneficial to enhance domain-intra and domain-inter consistency in turn.ResultsExtensive experiments are performed for retinal vessel segmentation under MSSF condition and our approach produces impressive performance. The sensitivity metric of our approach is highest and it surpasses other methods with a large margin.DiscussionIt is the first attempt to conduct researches on the retinal vessel segmentation task under multi-source and source-free scenarios. In medical applications, such adaptation method can avoid the privacy issue. Furthermore, how to balance the high sensitivity and high accuracy need to be further considered.https://www.frontiersin.org/articles/10.3389/fnins.2023.1209132/fullunsupervised domain adaptationretinal vessel segmentationsemantic segmentationmulti-sourcesource-free
spellingShingle Binke Cai
Liyan Ma
Yan Sun
Dual consistent pseudo label generation for multi-source domain adaptation without source data for medical image segmentation
Frontiers in Neuroscience
unsupervised domain adaptation
retinal vessel segmentation
semantic segmentation
multi-source
source-free
title Dual consistent pseudo label generation for multi-source domain adaptation without source data for medical image segmentation
title_full Dual consistent pseudo label generation for multi-source domain adaptation without source data for medical image segmentation
title_fullStr Dual consistent pseudo label generation for multi-source domain adaptation without source data for medical image segmentation
title_full_unstemmed Dual consistent pseudo label generation for multi-source domain adaptation without source data for medical image segmentation
title_short Dual consistent pseudo label generation for multi-source domain adaptation without source data for medical image segmentation
title_sort dual consistent pseudo label generation for multi source domain adaptation without source data for medical image segmentation
topic unsupervised domain adaptation
retinal vessel segmentation
semantic segmentation
multi-source
source-free
url https://www.frontiersin.org/articles/10.3389/fnins.2023.1209132/full
work_keys_str_mv AT binkecai dualconsistentpseudolabelgenerationformultisourcedomainadaptationwithoutsourcedataformedicalimagesegmentation
AT liyanma dualconsistentpseudolabelgenerationformultisourcedomainadaptationwithoutsourcedataformedicalimagesegmentation
AT yansun dualconsistentpseudolabelgenerationformultisourcedomainadaptationwithoutsourcedataformedicalimagesegmentation