Efficient deep neural networks for classification of COVID-19 based on CT images: Virtualization via software defined radio

Comput Commun. 2021 Aug 1:176:234-248. doi: 10.1016/j.comcom.2021.06.011. Epub 2021 Jun 16.

Abstract

The novel 2019 coronavirus disease (COVID-19) has infected over 141 million people worldwide since April 20, 2021. More than 200 countries around the world have been affected by the coronavirus pandemic. Screening for COVID-19, we use fast and inexpensive images from computed tomography (CT) scans. In this paper, ResNet-50, VGG-16, convolutional neural network (CNN), convolutional auto-encoder neural network (CAENN), and machine learning (ML) methods are proposed for classifying Chest CT Images of COVID-19. The dataset consists of 1252 CT scans that are positive and 1230 CT scans that are negative for COVID-19 virus. The proposed models have priority over the other models that there is no need of pre-trained networks and data augmentation for them. The classification accuracies of ResNet-50, VGG-16, CNN, and CAENN were obtained 92.24%, 94.07%, 93.84%, and 93.04% respectively. Among ML classifiers, the nearest neighbor (NN) had the highest performance with an accuracy of 94%.

Keywords: COVID-19; Computed tomography; Convolutional auto-encoder neural network (CAENN); Convolutional neural networks (CNN); ResNet-50; VGG-16.