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Semi-Supervised Deep Learning for Abnormality Classification in Retinal Images

12/19/2018
by   Bruno Lecouat, et al.
Harvard University
Agency for Science, Technology and Research
14

Supervised deep learning algorithms have enabled significant performance gains in medical image classification tasks. But these methods rely on large labeled datasets that require resource-intensive expert annotation. Semi-supervised generative adversarial network (GAN) approaches offer a means to learn from limited labeled data alongside larger unlabeled datasets, but have not been applied to discern fine-scale, sparse or localized features that define medical abnormalities. To overcome these limitations, we propose a patch-based semi-supervised learning approach and evaluate performance on classification of diabetic retinopathy from funduscopic images. Our semi-supervised approach achieves high AUC with just 10-20 labeled training images, and outperforms the supervised baselines by upto 15 of the training dataset is labeled. Further, our method implicitly enables interpretation of the SSL predictions. As this approach enables good accuracy, resolution and interpretability with lower annotation burden, it sets the pathway for scalable applications of deep learning in clinical imaging.

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Code Repositories

Improved-GAN-PyTorch

Implemenation of Semi-Supervised Learning using GANs in PyTorch for MNIST and CIFAR-10 datasets


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