Non-Contact Spirometry Using a Mobile Thermal Camera and AI Regression

Non-contact physiological measurements have been under investigation for many years, and among these measurements is non-contact spirometry, which could provide acute and chronic pulmonary disease monitoring and diagnosis. This work presents a feasibility study for non-contact spirometry measurement...

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Autores principales: Luay Fraiwan, Natheer Khasawneh, Khaldon Lweesy, Mennatalla Elbalki, Amna Almarzooqi, Nada Abu Hamra
Formato: article
Lenguaje:EN
Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/8e52b106ba8c4d2db1369a8d51592ddc
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spelling oai:doaj.org-article:8e52b106ba8c4d2db1369a8d51592ddc2021-11-25T18:57:33ZNon-Contact Spirometry Using a Mobile Thermal Camera and AI Regression10.3390/s212275741424-8220https://doaj.org/article/8e52b106ba8c4d2db1369a8d51592ddc2021-11-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/22/7574https://doaj.org/toc/1424-8220Non-contact physiological measurements have been under investigation for many years, and among these measurements is non-contact spirometry, which could provide acute and chronic pulmonary disease monitoring and diagnosis. This work presents a feasibility study for non-contact spirometry measurements using a mobile thermal imaging system. Thermal images were acquired from 19 subjects for measuring the respiration rate and the volume of inhaled and exhaled air. A mobile application was built to measure the respiration rate and export the respiration signal to a personal computer. The mobile application acquired thermal video images at a rate of nine frames/second and the OpenCV library was used for localization of the area of interest (nose and mouth). Artificial intelligence regressors were used to predict the inhalation and exhalation air volume. Several regressors were tested and four of them showed excellent performance: random forest, adaptive boosting, gradient boosting, and decision trees. The latter showed the best regression results, with an R-square value of 0.9998 and a mean square error of 0.0023. The results of this study showed that non-contact spirometry based on a thermal imaging system is feasible and provides all the basic measurements that the conventional spirometers support.Luay FraiwanNatheer KhasawnehKhaldon LweesyMennatalla ElbalkiAmna AlmarzooqiNada Abu HamraMDPI AGarticlethermal cameranon-contact spirometryartificial intelligence regressionrespiration signalrespiration rate mobile applicationChemical technologyTP1-1185ENSensors, Vol 21, Iss 7574, p 7574 (2021)
institution DOAJ
collection DOAJ
language EN
topic thermal camera
non-contact spirometry
artificial intelligence regression
respiration signal
respiration rate mobile application
Chemical technology
TP1-1185
spellingShingle thermal camera
non-contact spirometry
artificial intelligence regression
respiration signal
respiration rate mobile application
Chemical technology
TP1-1185
Luay Fraiwan
Natheer Khasawneh
Khaldon Lweesy
Mennatalla Elbalki
Amna Almarzooqi
Nada Abu Hamra
Non-Contact Spirometry Using a Mobile Thermal Camera and AI Regression
description Non-contact physiological measurements have been under investigation for many years, and among these measurements is non-contact spirometry, which could provide acute and chronic pulmonary disease monitoring and diagnosis. This work presents a feasibility study for non-contact spirometry measurements using a mobile thermal imaging system. Thermal images were acquired from 19 subjects for measuring the respiration rate and the volume of inhaled and exhaled air. A mobile application was built to measure the respiration rate and export the respiration signal to a personal computer. The mobile application acquired thermal video images at a rate of nine frames/second and the OpenCV library was used for localization of the area of interest (nose and mouth). Artificial intelligence regressors were used to predict the inhalation and exhalation air volume. Several regressors were tested and four of them showed excellent performance: random forest, adaptive boosting, gradient boosting, and decision trees. The latter showed the best regression results, with an R-square value of 0.9998 and a mean square error of 0.0023. The results of this study showed that non-contact spirometry based on a thermal imaging system is feasible and provides all the basic measurements that the conventional spirometers support.
format article
author Luay Fraiwan
Natheer Khasawneh
Khaldon Lweesy
Mennatalla Elbalki
Amna Almarzooqi
Nada Abu Hamra
author_facet Luay Fraiwan
Natheer Khasawneh
Khaldon Lweesy
Mennatalla Elbalki
Amna Almarzooqi
Nada Abu Hamra
author_sort Luay Fraiwan
title Non-Contact Spirometry Using a Mobile Thermal Camera and AI Regression
title_short Non-Contact Spirometry Using a Mobile Thermal Camera and AI Regression
title_full Non-Contact Spirometry Using a Mobile Thermal Camera and AI Regression
title_fullStr Non-Contact Spirometry Using a Mobile Thermal Camera and AI Regression
title_full_unstemmed Non-Contact Spirometry Using a Mobile Thermal Camera and AI Regression
title_sort non-contact spirometry using a mobile thermal camera and ai regression
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/8e52b106ba8c4d2db1369a8d51592ddc
work_keys_str_mv AT luayfraiwan noncontactspirometryusingamobilethermalcameraandairegression
AT natheerkhasawneh noncontactspirometryusingamobilethermalcameraandairegression
AT khaldonlweesy noncontactspirometryusingamobilethermalcameraandairegression
AT mennatallaelbalki noncontactspirometryusingamobilethermalcameraandairegression
AT amnaalmarzooqi noncontactspirometryusingamobilethermalcameraandairegression
AT nadaabuhamra noncontactspirometryusingamobilethermalcameraandairegression
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