1.西安交通大学软件学院,710049,西安
2.西安交通大学计算机科学与技术学院,710049,西安
3.上海交通大学计算机学院,200032,上海
4.西安交通大学网络空间安全学院,710049,西安
5.西安交通大学智能网络与网络安全教育部重点实验室,710049,西安
收稿:2025-11-17,
修回:2026-04-15,
录用:2026-04-27,
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苏渝钦, 潘杭镇, 李锦江, 等. 采用分割一切模型的弱监督互学习三维医学图像配准方法[J/OL]. 西安交通大学学报, 2026.
SU Yuqin, PAN Hangzhen, LI Jinjiang, et al. Foundation Model Guided 3D Medical Registration Via Weakly-Supervised Mutual Learning[J/OL]. JOURNAL OF XI’AN JIAOTONG UNIVERSITY, 2026.
针对三维医学图像配准中无监督方法配准精度不足、弱监督方法依赖高质量分割标签且分割基础模型生成标签难以直接稳定指导配准训练的问题,提出了一种采用分割一切模型的弱监督互学习三维医学图像配准方法。首先,利用分割一切模型从不同视角提取主要解剖区域掩码,并通过融合构建交集掩码与并集掩码,以表征不同粒度的结构先验信息。其次,在弱监督配准框架中引入互学习机制,通过结合可信度与位置信息模块,促进不同掩码监督下配准模型之间的知识蒸馏与协同优化,从而实现互补信息的有效利用并提升训练稳定性。最后,在三组脑图像数据集上的实验结果表明,所提方法能够在充分利用标签信息的同时保持稳定训练,与现有三维图像配准方法相比,在区域重叠度等指标上表现更优,其中重叠系数提升约5%,体现出更高的配准精度与可靠性。
To address the problems that unsupervised methods for 3D medical image registration suffer from limited accuracy
weakly supervised methods rely on high-quality segmentation labels
and labels generated by foundation segmentation models cannot directly and stably guide registration training
a weakly supervised mutual-learning method for 3D medical image registration guided by a foundation segmentation model is proposed. First
masks of major anatomical regions are extracted from different views using segment anything model
and intersection and union masks are constructed through mask fusion to represent structural prior information at different granularities. Second
a mutual-learning mechanism is introduced into the weakly supervised registration framework
where a confidence and position information module is incorporated to promote knowledge distillation and collaborative optimization between registration models under different mask supervision
thereby enabling effective utilization of complementary information and improving training stability. Finally
experimental results on three brain image datasets demonstrate that the proposed method can effectively exploit label information while maintaining stable training
and outperforms existing 3D image registration methods on multiple evaluation metrics
showing better registration accuracy and reliability.
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