Reverse active learning based atrous DenseNet for pathological image classification

Yuexiang Li, Xinpeng Xie, Linlin Shen, Shaoxiong Liu

Research output: Journal PublicationArticlepeer-review

16 Citations (Scopus)

Abstract

Background: Due to the recent advances in deep learning, this model attracted researchers who have applied it to medical image analysis. However, pathological image analysis based on deep learning networks faces a number of challenges, such as the high resolution (gigapixel) of pathological images and the lack of annotation capabilities. To address these challenges, we propose a training strategy called deep-reverse active learning (DRAL) and atrous DenseNet (ADN) for pathological image classification. The proposed DRAL can improve the classification accuracy of widely used deep learning networks such as VGG-16 and ResNet by removing mislabeled patches in the training set. As the size of a cancer area varies widely in pathological images, the proposed ADN integrates the atrous convolutions with the dense block for multiscale feature extraction. Results: The proposed DRAL and ADN are evaluated using the following three pathological datasets: BACH, CCG, and UCSB. The experiment results demonstrate the excellent performance of the proposed DRAL + ADN framework, achieving patch-level average classification accuracies (ACA) of 94.10%, 92.05% and 97.63% on the BACH, CCG, and UCSB validation sets, respectively. Conclusions: The DRAL + ADN framework is a potential candidate for boosting the performance of deep learning models for partially mislabeled training datasets.

Original languageEnglish
Article number445
JournalBMC Bioinformatics
Volume20
Issue number1
DOIs
Publication statusPublished - 28 Aug 2019
Externally publishedYes

Keywords

  • Active learning
  • Atrous convolution
  • Pathological image classification
  • deep learning

ASJC Scopus subject areas

  • Structural Biology
  • Biochemistry
  • Molecular Biology
  • Computer Science Applications
  • Applied Mathematics

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