Source-free domain transfer algorithm with reduced style sensitivity for medical image segmentation.

In unsupervised transfer learning for medical image segmentation, where existing algorithms face the challenge of error propagation due to inaccessible source domain data. In response to this scenario, source-free domain transfer algorithm with reduced style sensitivity (SFDT-RSS) is designed. SFDT-...

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Main Authors: Jian Lin, Xiaomin Yu, Zhengxian Wang, Chaoqiong Ma
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2024-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0309118
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author Jian Lin
Xiaomin Yu
Zhengxian Wang
Chaoqiong Ma
author_facet Jian Lin
Xiaomin Yu
Zhengxian Wang
Chaoqiong Ma
author_sort Jian Lin
collection DOAJ
description In unsupervised transfer learning for medical image segmentation, where existing algorithms face the challenge of error propagation due to inaccessible source domain data. In response to this scenario, source-free domain transfer algorithm with reduced style sensitivity (SFDT-RSS) is designed. SFDT-RSS initially pre-trains the source domain model by using the generalization strategy and subsequently adapts the pre-trained model to target domain without accessing source data. Then, SFDT-RSS conducts interpatch style transfer (ISS) strategy, based on self-training with Transformer architecture, to minimize the pre-trained model's style sensitivity, enhancing its generalization capability and reducing reliance on a single image style. Simultaneously, the global perception ability of the Transformer architecture enhances semantic representation to improve style generalization effectiveness. In the domain transfer phase, the proposed algorithm utilizes a model-agnostic adaptive confidence regulation (ACR) loss to adjust the source model. Experimental results on five publicly available datasets for unsupervised cross-domain organ segmentation demonstrate that compared to existing algorithms, SFDT-RSS achieves segmentation accuracy improvements of 2.83%, 2.64%, 3.21%, 3.01%, and 3.32% respectively.
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spelling doaj-art-9d9e4feee78b49049cdab76c9105832a2025-01-08T05:32:23ZengPublic Library of Science (PLoS)PLoS ONE1932-62032024-01-011912e030911810.1371/journal.pone.0309118Source-free domain transfer algorithm with reduced style sensitivity for medical image segmentation.Jian LinXiaomin YuZhengxian WangChaoqiong MaIn unsupervised transfer learning for medical image segmentation, where existing algorithms face the challenge of error propagation due to inaccessible source domain data. In response to this scenario, source-free domain transfer algorithm with reduced style sensitivity (SFDT-RSS) is designed. SFDT-RSS initially pre-trains the source domain model by using the generalization strategy and subsequently adapts the pre-trained model to target domain without accessing source data. Then, SFDT-RSS conducts interpatch style transfer (ISS) strategy, based on self-training with Transformer architecture, to minimize the pre-trained model's style sensitivity, enhancing its generalization capability and reducing reliance on a single image style. Simultaneously, the global perception ability of the Transformer architecture enhances semantic representation to improve style generalization effectiveness. In the domain transfer phase, the proposed algorithm utilizes a model-agnostic adaptive confidence regulation (ACR) loss to adjust the source model. Experimental results on five publicly available datasets for unsupervised cross-domain organ segmentation demonstrate that compared to existing algorithms, SFDT-RSS achieves segmentation accuracy improvements of 2.83%, 2.64%, 3.21%, 3.01%, and 3.32% respectively.https://doi.org/10.1371/journal.pone.0309118
spellingShingle Jian Lin
Xiaomin Yu
Zhengxian Wang
Chaoqiong Ma
Source-free domain transfer algorithm with reduced style sensitivity for medical image segmentation.
PLoS ONE
title Source-free domain transfer algorithm with reduced style sensitivity for medical image segmentation.
title_full Source-free domain transfer algorithm with reduced style sensitivity for medical image segmentation.
title_fullStr Source-free domain transfer algorithm with reduced style sensitivity for medical image segmentation.
title_full_unstemmed Source-free domain transfer algorithm with reduced style sensitivity for medical image segmentation.
title_short Source-free domain transfer algorithm with reduced style sensitivity for medical image segmentation.
title_sort source free domain transfer algorithm with reduced style sensitivity for medical image segmentation
url https://doi.org/10.1371/journal.pone.0309118
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AT xiaominyu sourcefreedomaintransferalgorithmwithreducedstylesensitivityformedicalimagesegmentation
AT zhengxianwang sourcefreedomaintransferalgorithmwithreducedstylesensitivityformedicalimagesegmentation
AT chaoqiongma sourcefreedomaintransferalgorithmwithreducedstylesensitivityformedicalimagesegmentation