Comparative Analysis of Deep Learning Models for Detection of COVID-19 from chest X-Ray Images
Keywords:
Coronavirus, X-ray Images, Deep Learning, Convolutional Neural Network, Transfer LearningAbstract
The coronavirus disease is a viral infectious disease resulting from severe acute respiratory syndrome coronavirus. The new coronavirus, which began in China, in December 2019, has rapidly become pandemic and resulted to over 500000 deaths worldwide. Prompt detection of COVID-19 is necessary to prevent the transmission of COVID-19. In this research, we developed Deep Learning (DL) models for detection of COVID-19 from chest X-ray Images and evaluated the performance of the models by using accuracy, sensitivity and specificity. 401 COVID-19 chest X-ray images were obtained from open access database developed by Dr Cohen while 397 normal and 390 pneumonia chest X-ray images were obtained from Kaggle repository. Modified Alexnet, Googlenet and SqueezeNet were used to classify the chest X-ray images. Transfer learning with Alexnet achieved an overall best performance of 100% accuracy, 100% sensitivity and 100% specificity on binary test dataset and 98.31% accuracy, 98.55% sensitivity and 99.37% specificity on three classes test dataset. The work will provide early detection of COVID-19 and thereby enhance medical decisions, treatments and management procedures.
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