An approach for COVID-19 detection using deep convolutional features on chest X-ray images

First screening of COVID-19 becomes very crucial because of its fast spread There are several ways to diagnose someone who has COVID-19, but chest X-ray is one of the efficient tools that can be used Deep learning, especially Convolutional Neural Network (CNN), is commonly utilized in medical images due to its superiority in extracting high-level features of images However, in order to train CNN, we need enormous data to avoid overfitting Meanwhile, there is a limit of chest X-ray availability that can be access publicly Considering this problem, we propose pre-trained CNN model as a feature extractor, and the feature vector obtained as the output of CNN that is used as the input of machine learning classifier, namely Support Vector Machines (SVM), Random Forest (RF), and k-Nearest Neighbors (kNN) Using the data from Kaggle COVID-19 Radiography Database, our proposed method with SVM as a classifier succeeded in delivering accuracy of 99 73% in the testing data Moreover, the performance of CNN-SVM held on training data provides the average accuracy of 99 77% Thus, our proposed approach can be used as an alternative on screening COVID-19 © 2021 Little Lion Scientific