Classification of Severity of Lung Parenchyma Using Saliency and Discrete Cosine Transform Energy in Computed Tomography of Patients With COVID-19
This study proposes an automated system for assessing lung damage severity in coronavirus disease 2019 (COVID-19) patients using computed tomography (CT) images. These preprocessed CT images identify the extent of pulmonary parenchyma (PP) and ground-glass opacity and pulmonary infiltrates (GGO-PIs)...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-01-01
|
| Series: | International Journal of Telemedicine and Applications |
| Online Access: | http://dx.doi.org/10.1155/ijta/4420410 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841542610061099008 |
|---|---|
| author | Santiago Tello-Mijares Francisco Flores Fomuy Woo |
| author_facet | Santiago Tello-Mijares Francisco Flores Fomuy Woo |
| author_sort | Santiago Tello-Mijares |
| collection | DOAJ |
| description | This study proposes an automated system for assessing lung damage severity in coronavirus disease 2019 (COVID-19) patients using computed tomography (CT) images. These preprocessed CT images identify the extent of pulmonary parenchyma (PP) and ground-glass opacity and pulmonary infiltrates (GGO-PIs). Two types of images—saliency (Q) image and discrete cosine transform (DCT) energy image—were generated from these images. A final fused (FF) image combining Q and DCT of PP and GGO-PI images was then obtained. Five convolutional neural networks (CNNs) and five classic classification techniques, trained using FF and grayscale PP images, were tested. Our study is aimed at showing that a CNN model, with preprocessed images as input, has significant advantages over grayscale images. Previous work in this field primarily focused on grayscale images, which presented some limitations. This paper demonstrates how optimal results can be obtained by using the FF image rather than just the grayscale PP image. As a result, CNN models outperformed traditional artificial intelligence classification techniques. Of these, Vgg16Net performed best, delivering top-tier classification results for COVID-19 severity assessment, with a recall rate of 95.38%, precision of 96%, accuracy of 95.84%, and area under the receiver operating characteristic (AUROC) curve of 0.9585; in addition, the Vgg16Net delivers the lowest false negative (FN) results. The dataset, comprising 44 COVID-19 patients, was split equally, with half used for training and half for testing. |
| format | Article |
| id | doaj-art-493d3ee0fee24d44bb782d213bd45731 |
| institution | Kabale University |
| issn | 1687-6423 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Telemedicine and Applications |
| spelling | doaj-art-493d3ee0fee24d44bb782d213bd457312025-01-14T00:00:03ZengWileyInternational Journal of Telemedicine and Applications1687-64232025-01-01202510.1155/ijta/4420410Classification of Severity of Lung Parenchyma Using Saliency and Discrete Cosine Transform Energy in Computed Tomography of Patients With COVID-19Santiago Tello-Mijares0Francisco Flores1Fomuy Woo2Basic Sciences DepartmentPostgraduate DepartmentMedical Familiar UnitThis study proposes an automated system for assessing lung damage severity in coronavirus disease 2019 (COVID-19) patients using computed tomography (CT) images. These preprocessed CT images identify the extent of pulmonary parenchyma (PP) and ground-glass opacity and pulmonary infiltrates (GGO-PIs). Two types of images—saliency (Q) image and discrete cosine transform (DCT) energy image—were generated from these images. A final fused (FF) image combining Q and DCT of PP and GGO-PI images was then obtained. Five convolutional neural networks (CNNs) and five classic classification techniques, trained using FF and grayscale PP images, were tested. Our study is aimed at showing that a CNN model, with preprocessed images as input, has significant advantages over grayscale images. Previous work in this field primarily focused on grayscale images, which presented some limitations. This paper demonstrates how optimal results can be obtained by using the FF image rather than just the grayscale PP image. As a result, CNN models outperformed traditional artificial intelligence classification techniques. Of these, Vgg16Net performed best, delivering top-tier classification results for COVID-19 severity assessment, with a recall rate of 95.38%, precision of 96%, accuracy of 95.84%, and area under the receiver operating characteristic (AUROC) curve of 0.9585; in addition, the Vgg16Net delivers the lowest false negative (FN) results. The dataset, comprising 44 COVID-19 patients, was split equally, with half used for training and half for testing.http://dx.doi.org/10.1155/ijta/4420410 |
| spellingShingle | Santiago Tello-Mijares Francisco Flores Fomuy Woo Classification of Severity of Lung Parenchyma Using Saliency and Discrete Cosine Transform Energy in Computed Tomography of Patients With COVID-19 International Journal of Telemedicine and Applications |
| title | Classification of Severity of Lung Parenchyma Using Saliency and Discrete Cosine Transform Energy in Computed Tomography of Patients With COVID-19 |
| title_full | Classification of Severity of Lung Parenchyma Using Saliency and Discrete Cosine Transform Energy in Computed Tomography of Patients With COVID-19 |
| title_fullStr | Classification of Severity of Lung Parenchyma Using Saliency and Discrete Cosine Transform Energy in Computed Tomography of Patients With COVID-19 |
| title_full_unstemmed | Classification of Severity of Lung Parenchyma Using Saliency and Discrete Cosine Transform Energy in Computed Tomography of Patients With COVID-19 |
| title_short | Classification of Severity of Lung Parenchyma Using Saliency and Discrete Cosine Transform Energy in Computed Tomography of Patients With COVID-19 |
| title_sort | classification of severity of lung parenchyma using saliency and discrete cosine transform energy in computed tomography of patients with covid 19 |
| url | http://dx.doi.org/10.1155/ijta/4420410 |
| work_keys_str_mv | AT santiagotellomijares classificationofseverityoflungparenchymausingsaliencyanddiscretecosinetransformenergyincomputedtomographyofpatientswithcovid19 AT franciscoflores classificationofseverityoflungparenchymausingsaliencyanddiscretecosinetransformenergyincomputedtomographyofpatientswithcovid19 AT fomuywoo classificationofseverityoflungparenchymausingsaliencyanddiscretecosinetransformenergyincomputedtomographyofpatientswithcovid19 |