Box-Adapt: Domain-Adaptive Medical Image Segmentation using Bounding BoxSupervision

• URL: http://arxiv.org/abs/2108.08432v1
• Date: Thu, 19 Aug 2021 01:51:04 GMT
• Title: Box-Adapt: Domain-Adaptive Medical Image Segmentation using Bounding BoxSupervision
• Authors: Yanwu Xu, Mingming Gong, Kayhan Batmanghelich
• Abstract summary: We propose a weakly supervised do-main adaptation setting for deep learning. Box-Adapt fully explores the fine-grained segmenta-tion mask in the source domain and the weak bounding box in the target domain. We demonstrate the effectiveness of our method in the liver segmentation task.
• Score: 52.45336255472669
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Deep learning has achieved remarkable success in medicalimage segmentation, but it usually requires a large numberof images labeled with fine-grained segmentation masks, andthe annotation of these masks can be very expensive andtime-consuming. Therefore, recent methods try to use un-supervised domain adaptation (UDA) methods to borrow in-formation from labeled data from other datasets (source do-mains) to a new dataset (target domain). However, due tothe absence of labels in the target domain, the performance ofUDA methods is much worse than that of the fully supervisedmethod. In this paper, we propose a weakly supervised do-main adaptation setting, in which we can partially label newdatasets with bounding boxes, which are easier and cheaperto obtain than segmentation masks. Accordingly, we proposea new weakly-supervised domain adaptation method calledBox-Adapt, which fully explores the fine-grained segmenta-tion mask in the source domain and the weak bounding boxin the target domain. Our Box-Adapt is a two-stage methodthat first performs joint training on the source and target do-mains, and then conducts self-training with the pseudo-labelsof the target domain. We demonstrate the effectiveness of ourmethod in the liver segmentation task. Weakly supervised do-main adaptation

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