arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2403.14616cs.CV
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用于改进组织病理学表示学习的分层文本到视觉自监督对齐

Hierarchical Text-to-Vision Self Supervised Alignment for Improved Histopathology Representation Learning

Mohamed Bin Zayed University of Artificial Intelligence(穆罕默德·本·扎耶德人工智能大学);Stony Brook University(石溪大学);Shaukat Khanum Cancer Hospital(肖卡特·卡努姆癌症医院);Australian National University(澳大利亚国立大学)

Hasindri Watawana, Kanchana Ranasinghe, Tariq Mahmood, Muzammal Naseer, Salman Khan, Fahad Shahbaz Khan

AI总结:

本文提出了一种新颖的语言绑定自监督学习框架HLSS,通过结合领域自然语言信息与患者-切片-补丁分层视觉表示,利用对比目标和细粒度文本对齐将语言模态注入视觉特征,在OpenSRH和TCGA数据集上达到SOTA,并提升了可解释性。

摘要:

自监督表示学习在组织病理学图像分析中极具前景,许多方法利用患者-切片-补丁的层级结构来学习更好的表示。本文探索将领域特定的自然语言信息与这种分层视觉表示相结合,如何有益于医学图像任务的丰富表示学习。基于为组织病理学图像中可见特征自动生成语言描述,我们提出了一种新颖的语言绑定自监督学习框架,即用于组织病理学图像的分层语言绑定自监督(HLSS)。我们探索了对比目标和基于细粒度语言描述的多层级文本对齐,以将语言模态信息注入视觉表示中。我们最终生成的模型在两个医学成像基准OpenSRH和TCGA数据集上取得了最先进的性能。我们的框架还通过语言对齐的表示空间提供了更好的可解释性。代码可在 https://github.com/Hasindri/HLSS 获取。

英文摘要:

Self-supervised representation learning has been highly promising for histopathology image analysis with numerous approaches leveraging their patient-slide-patch hierarchy to learn better representations. In this paper, we explore how the combination of domain specific natural language information with such hierarchical visual representations can benefit rich representation learning for medical image tasks. Building on automated language description generation for features visible in histopathology images, we present a novel language-tied self-supervised learning framework, Hierarchical Language-tied Self-Supervision (HLSS) for histopathology images. We explore contrastive objectives and granular language description based text alignment at multiple hierarchies to inject language modality information into the visual representations. Our resulting model achieves state-of-the-art performance on two medical imaging benchmarks, OpenSRH and TCGA datasets. Our framework also provides better interpretability with our language aligned representation space. Code is available at https://github.com/Hasindri/HLSS.

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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