Decoupled Competitive Framework for Semi-supervised Medical Image Segmentation

• URL: http://arxiv.org/abs/2505.24667v1
• Date: Fri, 30 May 2025 14:56:00 GMT
• Title: Decoupled Competitive Framework for Semi-supervised Medical Image Segmentation
• Authors: Jiahe Chen, Jiahe Ying, Shen Wang, Jianwei Zheng,
• Abstract summary: Semi-supervised medical image segmentation (SSMIS) is a promising solution for insufficiently annotated samples in medical domain.<n>Most approaches following the Mean Teacher (MT) or Dual Students (DS) architecture have achieved commendable results.<n>A Decoupled Competitive Framework (DCF) is elaborated in this work, which utilizes a straightforward competition mechanism for the update of EMA.<n>The DCF undergoes rigorous validation on three publicly accessible datasets, which encompass both 2D and 3D datasets.
• Score: 2.146676124065199
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Confronting the critical challenge of insufficiently annotated samples in medical domain, semi-supervised medical image segmentation (SSMIS) emerges as a promising solution. Specifically, most methodologies following the Mean Teacher (MT) or Dual Students (DS) architecture have achieved commendable results. However, to date, these approaches face a performance bottleneck due to two inherent limitations, \textit{e.g.}, the over-coupling problem within MT structure owing to the employment of exponential moving average (EMA) mechanism, as well as the severe cognitive bias between two students of DS structure, both of which potentially lead to reduced efficacy, or even model collapse eventually. To mitigate these issues, a Decoupled Competitive Framework (DCF) is elaborated in this work, which utilizes a straightforward competition mechanism for the update of EMA, effectively decoupling students and teachers in a dynamical manner. In addition, the seamless exchange of invaluable and precise insights is facilitated among students, guaranteeing a better learning paradigm. The DCF introduced undergoes rigorous validation on three publicly accessible datasets, which encompass both 2D and 3D datasets. The results demonstrate the superiority of our method over previous cutting-edge competitors. Code will be available at https://github.com/JiaheChen2002/DCF.

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