A Novel Explainable CNN Model for Screening COVID-19 on X-ray Images

Moujahid, Hicham and Cherradi, Bouchaib and El Gannour, Oussama and Nagmeldin, Wamda and Abdelmaboud, Abdelzahir and Al-Sarem, Mohammed and Bahatti, Lhoussain and Saeed, Faisal and Hadwan, Mohammed (2023) A Novel Explainable CNN Model for Screening COVID-19 on X-ray Images. Computer Systems Science and Engineering, 46 (2). pp. 1789-1809. ISSN 0267-6192

TSP_CSSE_34022.pdf - Published Version
Available under License Creative Commons Attribution.

Download (10MB)


Due to the rapid propagation characteristic of the Coronavirus (COVID-19) disease, manual diagnostic methods cannot handle the large number of infected individuals to prevent the spread of infection. Despite, new automated diagnostic methods have been brought on board, particularly methods based on artificial intelligence using different medical data such as X-ray imaging. Thoracic imaging, for example, produces several image types that can be processed and analyzed by machine and deep learning methods. X-ray imaging materials widely exist in most hospitals and health institutes since they are affordable compared to other imaging machines. Through this paper, we propose a novel Convolutional Neural Network (CNN) model (COV2Net) that can detect COVID-19 virus by analyzing the X-ray images of suspected patients. This model is trained on a dataset containing thousands of X-ray images collected from different sources. The model was tested and evaluated on an independent dataset. In order to approve the performance of the proposed model, three CNN models namely Mobile-Net, Residential Energy Services Network (Res-Net), and Visual Geometry Group 16 (VGG-16) have been implemented using transfer learning technique. This experiment consists of a multi-label classification task based on X-ray images for normal patients, patients infected by COVID-19 virus and other patients infected with pneumonia. This proposed model is empowered with Gradient-weighted Class Activation Mapping (Grad-CAM) and Grad-Cam++ techniques for a visual explanation and methodology debugging goal. The finding results show that the proposed model COV2Net outperforms the state-of-the-art methods.

Item Type: Article
Identification Number: https://doi.org/10.32604/csse.2023.034022
13 November 2022Accepted
9 February 2023Published Online
Uncontrolled Keywords: Artificial intelligence, intelligent diagnostic systems, decision-making, COVID-19, convolutional neural network
Subjects: CAH11 - computing > CAH11-01 - computing > CAH11-01-01 - computer science
Divisions: Faculty of Computing, Engineering and the Built Environment > School of Computing and Digital Technology
Depositing User: Gemma Tonks
Date Deposited: 15 Feb 2024 15:20
Last Modified: 15 Feb 2024 15:20
URI: https://www.open-access.bcu.ac.uk/id/eprint/15202

Actions (login required)

View Item View Item


In this section...