A compact CNN model for automated detection of COVID-19 using thorax x-ray images

被引:1
|
作者
Awan, Tehreem [1 ,2 ]
Khan, Khan Bahadar [3 ]
Mannan, Abdul [2 ]
机构
[1] Islamia Univ Bahawalpur, Dept Elect Engn, Bahawalpur, Pakistan
[2] NFC Inst Engn & Technol Multan, Dept Elect Engn, Multan, Pakistan
[3] Islamia Univ Bahawalpur, Dept Informat & Commun Engn, Bahawalpur, Pakistan
关键词
COVID-19; Chest X-rays; Deep learning; EfficientNets; PNEUMONIA;
D O I
10.3233/JIFS-223704
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
COVID-19 is an epidemic, causing an enormous death toll. The mutational changing of an RNA virus is causing diagnostic complexities. RT-PCR and Rapid Tests are used for the diagnosis, but unfortunately, these methods are ineffective in diagnosing all strains of COVID-19. There is an utmost need to develop a diagnostic procedure for timely identification. In the proposed work, we come up with a lightweight algorithm based on deep learning to develop a rapid detection system for COVID-19 with thorax chest x-ray (CXR) images. This research aims to develop a fine-tuned convolutional neural network (CNN) model using improved EfficientNetB5. Design is based on compound scaling and trained on the best possible feature extraction algorithm. The low convergence rate of the proposed work can be easily deployed into limited computational resources. It will be helpful for the rapid triaging of victims. 2-fold cross-validation further improves the performance. The algorithm proposed is trained, validated, and testing is performed in the form of internal and external validation on a self-collected and compiled a real-time dataset of CXR. The training dataset is relatively extensive compared to the existing ones. The performance of the proposed technique is measured, validated, and compared with other state-of-the-art pre-trained models. The proposed methodology gives remarkable accuracy (99.5%) and recall (99.5%) for biclassification. The external validation using two different test dataset also give exceptional predictions. The visual depiction of predictions is represented by Grad-CAM maps, presenting the extracted features of the predicted results.
引用
收藏
页码:7887 / 7907
页数:21
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