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arXiv 1908.05020eess.IVcs.CV

Histographs: Graphs in Histopathology

Indian Institute of Technology Bombay(印度理工学院孟买分校);University of Illinois(伊利诺伊大学)

Shrey Gadiya, Deepak Anand, Amit Sethi

英文摘要:

Spatial arrangement of cells of various types, such as tumor infiltrating lymphocytes and the advancing edge of a tumor, are important features for detecting and characterizing cancers. However, convolutional neural networks (CNNs) do not explicitly extract intricate features of the spatial arrangements of the cells from histopathology images. In this work, we propose to classify cancers using graph convolutional networks (GCNs) by modeling a tissue section as a multi-attributed spatial graph of its constituent cells. Cells are detected using their nuclei in H&E stained tissue image, and each cell's appearance is captured as a multi-attributed high-dimensional vertex feature. The spatial relations between neighboring cells are captured as edge features based on their distances in a graph. We demonstrate the utility of this approach by obtaining classification accuracy that is competitive with CNNs, specifically, Inception-v3, on two tasks-cancerous versus non-cancerous and in situ versus invasive-on the BACH breast cancer dataset.

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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