我们能否超越视觉特征?面向非黑色素瘤皮肤组织病理学的神经组织关系建模
Can We Go Beyond Visual Features? Neural Tissue Relation Modeling for Relational Graph Analysis in Non-Melanoma Skin Histology
AI总结:
本文提出神经组织关系建模(NTRM),通过引入组织级图神经网络,改进皮肤病理学图像分割,提升对组织间关系的建模能力,在非黑色素瘤皮肤癌分割数据集上取得更优性能。
摘要:
组织病理学图像分割对于皮肤癌诊断中的组织结构界定至关重要,但建模空间上下文和组织间关系仍具挑战性,特别是在重叠或形态相似的组织区域。当前基于卷积神经网络(CNN)的方法主要依赖视觉纹理,通常将组织视为独立区域,难以编码生物上下文。为此,我们引入神经组织关系建模(NTRM),一种新的分割框架,通过在CNN中引入组织级图神经网络,建模不同组织类型间的空间和功能关系。NTRM在预测的区域上构建图,通过信息传递传播上下文信息,并通过空间投影优化分割。与先前方法不同,NTRM明确编码组织间依赖关系,使边界密集区域的预测更加结构化。在非黑色素瘤皮肤癌分割基准数据集上,NTRM优于现有最先进方法,其Dice相似度系数比评估方法中表现最好的模型高4.9%至31.25%。我们的实验表明,关系建模相比缺乏组织级结构意识的局部感受野架构,提供了更原理化的路径,以实现更上下文感知和可解释的组织学分割。我们的代码可在https://github.com/shravan-18/NTRM获取。
英文摘要:
Histopathology image segmentation is essential for delineating tissue structures in skin cancer diagnostics, but modeling spatial context and inter-tissue relationships remains a challenge, especially in regions with overlapping or morphologically similar tissues. Current convolutional neural network (CNN)-based approaches operate primarily on visual texture, often treating tissues as independent regions and failing to encode biological context. To this end, we introduce Neural Tissue Relation Modeling (NTRM), a novel segmentation framework that augments CNNs with a tissue-level graph neural network to model spatial and functional relationships across tissue types. NTRM constructs a graph over predicted regions, propagates contextual information via message passing, and refines segmentation through spatial projection. Unlike prior methods, NTRM explicitly encodes inter-tissue dependencies, enabling structurally coherent predictions in boundary-dense zones. On the benchmark Histopathology Non-Melanoma Skin Cancer Segmentation Dataset, NTRM outperforms state-of-the-art methods, achieving a robust Dice similarity coefficient that is 4.9\% to 31.25\% higher than the best-performing models among the evaluated approaches. Our experiments indicate that relational modeling offers a principled path toward more context-aware and interpretable histological segmentation, compared to local receptive-field architectures that lack tissue-level structural awareness. Our code is available at https://github.com/shravan-18/NTRM.
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。