Distant Domain Transfer Learning for Medical Imaging

• URL: http://arxiv.org/abs/2012.06346v1
• Date: Thu, 10 Dec 2020 02:53:52 GMT
• Title: Distant Domain Transfer Learning for Medical Imaging
• Authors: Shuteng Niu, Meryl Liu, Yongxin Liu, Jian Wang, Houbing Song
• Abstract summary: We propose a distant domain transfer learning (DDTL) method for medical image classification. Several current studies indicate that lung Computed Tomography (CT) images can be used for a fast and accurate COVID-19 diagnosis. The proposed method benefits from unlabeled data collected from distant domains which can be easily accessed. It has achieved 96% classification accuracy, which is 13% higher classification accuracy than "non-transfer" algorithms.
• Score: 14.806736041145964
• License: http://creativecommons.org/licenses/by-sa/4.0/
• Abstract: Medical image processing is one of the most important topics in the field of the Internet of Medical Things (IoMT). Recently, deep learning methods have carried out state-of-the-art performances on medical image tasks. However, conventional deep learning have two main drawbacks: 1) insufficient training data and 2) the domain mismatch between the training data and the testing data. In this paper, we propose a distant domain transfer learning (DDTL) method for medical image classification. Moreover, we apply our methods to a recent issue (Coronavirus diagnose). Several current studies indicate that lung Computed Tomography (CT) images can be used for a fast and accurate COVID-19 diagnosis. However, the well-labeled training data cannot be easily accessed due to the novelty of the disease and a number of privacy policies. Moreover, the proposed method has two components: Reduced-size Unet Segmentation model and Distant Feature Fusion (DFF) classification model. It is related to a not well-investigated but important transfer learning problem, termed Distant Domain Transfer Learning (DDTL). DDTL aims to make efficient transfers even when the domains or the tasks are entirely different. In this study, we develop a DDTL model for COVID-19 diagnose using unlabeled Office-31, Catech-256, and chest X-ray image data sets as the source data, and a small set of COVID-19 lung CT as the target data. The main contributions of this study: 1) the proposed method benefits from unlabeled data collected from distant domains which can be easily accessed, 2) it can effectively handle the distribution shift between the training data and the testing data, 3) it has achieved 96\% classification accuracy, which is 13\% higher classification accuracy than "non-transfer" algorithms, and 8\% higher than existing transfer and distant transfer algorithms.

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