计算病理与拓签名和视觉文字编码的计算病理
Taymaz Akan1, Richa Aishwarya1, Md Shenuarin Bhuiyan1
1LSU Health Shreveport.
Research square
|December 11, 2025
概括
本研究介绍了TopoBoW,这是一个结合拓数据分析和视觉词汇袋的计算框架,用于准确地分类肌肉组织. TopoBoW集成了全球和本地图像功能,以改善病理分析.
科学领域:
- 计算病理学计算病理学
- 数字病理学数字病理学
- 医疗图像分析 医学图像分析
背景情况:
- 组织分析对于诊断疾病至关重要,但依赖于病理学家的劳动密集型手动评估.
- 当前的计算病理学模型难以捕捉本地和全球结构模式及其空间组织.
- 需要客观的计算框架来描述显微镜图像中的形态模式.
研究的目的:
- 开发TopoBoW,一个新的计算框架,集成拓数据分析 (TDA) 和视觉词包 (BoVW),用于客观的形态模式表征.
- 将全球结构特征 (来自TDA的贝蒂曲线) 与本地纹理模式 (来自BoVW的SURF描述符) 结合起来,以进行增强的图像分析.
- 训练一个以注意力引导的多层感知子 (MLP),使用TopoBoW特征来区分健康和病态的肌肉组织.
主要方法:
- 通过整合全球结构特征的TDA和本地纹理特征的BoVW来开发TopoBoW.
- 使用来自持久同质 (TDA) 和带有组图编码 (BoVW) 的SURF描述符的Betti曲线.
- 雇佣了一个以注意力为导向的MLP,接受了综合特征的培训,并将性能与基线模型 (TDA,HOG与XGBoost,基于注意力的MLP) 进行了比较.
主要成果:
- 在肌肉组织分类方面,TopoBoW展示了最先进的性能.
- 该框架在关键分类指标 (包括精度,F1分数和AUC) 上显著超过了所有基线模型.
- 视觉化证实了TopoBoW的特征载体在健康和患病的组织类别中的区分能力.
结论:
- TopoBoW提供了一个可解释的,基于特征的计算框架,用于客观的病理分析.
- 全球结构和局部纹理信息的整合增强了形态模式的表征.
- TopoBoW有可能支持病理学研究,教育和交互式诊断工作流.
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