arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2102.10499cs.CV
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基于分层条件随机场的胃组织病理学图像分类注意力机制方法

A Hierarchical Conditional Random Field-based Attention Mechanism Approach for Gastric Histopathology Image Classification

Northeastern University(东北大学);Shenyang Institute of Automation, Chinese Academy of Sciences(中国科学院沈阳自动化研究所);Stevens Institute of Technology(史蒂文斯理工学院);China Medical University(中国医科大学);Liaoning Cancer Hospital and Institute(辽宁省肿瘤医院暨研究所);Chengdu University of Information Technology(成都信息工程大学)

Yixin Li, Xinran Wu, Chen Li, Changhao Sun, Md Rahaman, Haoyuan Chen, Yudong Yao, Xiaoyan Li, Yong Zhang, Tao Jiang

摘要:

在胃组织学图像分类(GHIC)任务中,图像中不可避免地存在冗余信息,这通常是一种弱监督学习任务。因此,设计能够专注于有效区分特征的网络已成为热门研究课题。为了更好地完成GHIC的任务,辅助病理学家进行临床诊断,提出了一种基于分层条件随机场的注意力机制(HCRF-AM)模型。HCRF-AM模型由注意力机制(AM)模块和图像分类(IC)模块组成。在AM模块中,建立了HCRF模型来提取注意区域。在IC模块中,使用所选择的关注区域来训练卷积神经网络(CNN)模型,然后应用称为基于分类概率的包围学习的算法来从CNN的块级输出获得图像级结果。在实验中,在700幅图像的胃组织病理学数据集上实现了96.67%的分类特异性。我们的HCRF-AM模型表现出很高的分类性能,并显示其在GHIC领域的有效性和未来的潜力。

英文摘要:

In the Gastric Histopathology Image Classification (GHIC) tasks, which are usually weakly supervised learning missions, there is inevitably redundant information in the images. Therefore, designing networks that can focus on effective distinguishing features has become a popular research topic. In this paper, to accomplish the tasks of GHIC superiorly and to assist pathologists in clinical diagnosis, an intelligent Hierarchical Conditional Random Field based Attention Mechanism (HCRF-AM) model is proposed. The HCRF-AM model consists of an Attention Mechanism (AM) module and an Image Classification (IC) module. In the AM module, an HCRF model is built to extract attention regions. In the IC module, a Convolutional Neural Network (CNN) model is trained with the attention regions selected and then an algorithm called Classification Probability-based Ensemble Learning is applied to obtain the image-level results from patch-level output of the CNN. In the experiment, a classification specificity of 96.67% is achieved on a gastric histopathology dataset with 700 images. Our HCRF-AM model demonstrates high classification performance and shows its effectiveness and future potential in the GHIC field.

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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