journal article Open Access Jun 19, 2020

Efficient Pneumonia Detection in Chest Xray Images Using Deep Transfer Learning

Diagnostics Vol. 10 No. 6 pp. 417 · MDPI AG
View at Publisher Save 10.3390/diagnostics10060417
Abstract
Pneumonia causes the death of around 700,000 children every year and affects 7% of the global population. Chest X-rays are primarily used for the diagnosis of this disease. However, even for a trained radiologist, it is a challenging task to examine chest X-rays. There is a need to improve the diagnosis accuracy. In this work, an efficient model for the detection of pneumonia trained on digital chest X-ray images is proposed, which could aid the radiologists in their decision making process. A novel approach based on a weighted classifier is introduced, which combines the weighted predictions from the state-of-the-art deep learning models such as ResNet18, Xception, InceptionV3, DenseNet121, and MobileNetV3 in an optimal way. This approach is a supervised learning approach in which the network predicts the result based on the quality of the dataset used. Transfer learning is used to fine-tune the deep learning models to obtain higher training and validation accuracy. Partial data augmentation techniques are employed to increase the training dataset in a balanced way. The proposed weighted classifier is able to outperform all the individual models. Finally, the model is evaluated, not only in terms of test accuracy, but also in the AUC score. The final proposed weighted classifier model is able to achieve a test accuracy of 98.43% and an AUC score of 99.76 on the unseen data from the Guangzhou Women and Children’s Medical Center pneumonia dataset. Hence, the proposed model can be used for a quick diagnosis of pneumonia and can aid the radiologists in the diagnosis process.
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Details
Published
Jun 19, 2020
Vol/Issue
10(6)
Pages
417
License
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Funding
National Research Foundation of Korea Award: 2020R1A2C1A01011131
Cite This Article
Mohammad Farukh Hashmi, Satyarth Katiyar, Avinash G Keskar, et al. (2020). Efficient Pneumonia Detection in Chest Xray Images Using Deep Transfer Learning. Diagnostics, 10(6), 417. https://doi.org/10.3390/diagnostics10060417