Artificial Intelligence based Covid19 detection using CTScan and Chest X-Ray Images: Machine Learning and Deep Learning techniques

Abstract

COVID-19, also known as the coronavirus disease 2019 is a highly contagious respiratory illness caused by SARS-COV-2 virus which spread form china globally resulting in pandemic. With advances in diagnostic tools, radiologic imaging is widely used for COVID-19 pneumonia diagnosis other than usual clinical and laboratory testing. In this paper, several deep learning and machine learning enhanced techniques are applied to X-Ray and CT-Scan medical images for the detection of covid-19 and also a clinical data for the prediction of the covid19. The images are preprocessed and trained using U-Net model, a popular architecture for image segmentation tasks. The accuracy and F1-score were found to be above 98% in the diagnosis of COVID-19 using CT-scan images. Further, transfer learning techniques were applied to overcome the insufficient data and to improve the training time. The binary and multi-class classification of X-ray images tasks were performed by utilizing enhanced CNN deep transfer learning architecture. An accuracy of 99% was achieved by enhanced CNN in the detection of X-ray images from COVID-19 and pneumonia.Further,using clinical dataset we compared the performance of supervised machine learning algorithms: logistic regression, random forest classifier, and XGBoost classifier. These algorithms were trained and evaluated on the preprocessed and feature-selected dataset to predict COVID-19 cases. The results showed that XGBoost classifier outperformed logistic regression and random forest classifier in predicting COVID-19 cases based on symptoms, age, gender, and test indications.