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arXiv 2508.03752eess.IVcs.AIcs.CV

M$^3$HL:用于半监督医学图像分割的高低层特征一致性的互掩码混合

M$^3$HL: Mutual Mask Mix with High-Low Level Feature Consistency for Semi-Supervised Medical Image Segmentation

Shanghai Key Laboratory of Intelligent Sensing and Recognition(上海智能感知与识别重点实验室);Shanghai Jiao Tong University(上海交通大学);Department of Endocrinology and Metabolism, Renji Hospital, School of Medicine, Shanghai Jiao Tong University(内分泌与代谢科,仁济医院,医学院,上海交通大学);Center for Digital Innovation, Tongji University(同济大学数字创新中心)

Yajun Liu, Zenghui Zhang, Jiang Yue, Weiwei Guo, Dongying Li

AI总结:

针对半监督医学图像分割中CutMix增强僵化及特征一致性不足的问题,提出M$^3$HL方法,结合动态掩码混合与高低层特征一致性正则化,在ACDC和LA基准上取得最优性能。

摘要:

受CutMix启发的数据增强方法在近年来的半监督医学图像分割任务中展现出显著潜力。然而,这些方法通常以僵化且不灵活的方式应用CutMix操作,同时对特征级一致性约束的关注不足。在本文中,我们提出了一种名为互掩码混合与高低层特征一致性(M$^3$HL)的新方法,以解决上述挑战,该方法包含两个关键组成部分:1)M$^3$:一种受掩码图像建模(MIM)中掩码策略启发的增强数据增强操作,通过动态可调掩码推进传统CutMix,生成空间互补的图像对用于协同训练,从而在标记和未标记图像之间实现有效的信息融合。2)HL:一种分层一致性正则化框架,强制未标记图像与混合图像之间的高层和低层特征一致性,使模型能够更好地捕获判别性特征表示。我们的方法在广泛采用的医学图像分割基准(包括ACDC和LA数据集)上实现了最先进的性能。源代码可在https://github.com/PHPJava666/M3HL获取。

英文摘要:

Data augmentation methods inspired by CutMix have demonstrated significant potential in recent semi-supervised medical image segmentation tasks. However, these approaches often apply CutMix operations in a rigid and inflexible manner, while paying insufficient attention to feature-level consistency constraints. In this paper, we propose a novel method called Mutual Mask Mix with High-Low level feature consistency (M$^3$HL) to address the aforementioned challenges, which consists of two key components: 1) M$^3$: An enhanced data augmentation operation inspired by the masking strategy from Masked Image Modeling (MIM), which advances conventional CutMix through dynamically adjustable masks to generate spatially complementary image pairs for collaborative training, thereby enabling effective information fusion between labeled and unlabeled images. 2) HL: A hierarchical consistency regularization framework that enforces high-level and low-level feature consistency between unlabeled and mixed images, enabling the model to better capture discriminative feature representations.Our method achieves state-of-the-art performance on widely adopted medical image segmentation benchmarks including the ACDC and LA datasets. Source code is available at https://github.com/PHPJava666/M3HL

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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