Towards an Approach for Filtration Efficiency Estimation of Consumer-Grade Face Masks Using Thermography

Autor: José Armando Fragoso-Mandujano, Madain Pérez-Patricio, Jorge Luis Camas-Anzueto, Hector Daniel Vázquez-Delgado, Eduardo Chandomí-Castellanos, Yair Gonzalez-Baldizón, Julio Alberto Guzman-Rabasa, Julio Cesar Martinez-Morgan, Luis Enrique Guillén-Ruíz
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Applied Sciences, Vol 12, Iss 4, p 2071 (2022)
Druh dokumentu: article
ISSN: 2076-3417
DOI: 10.3390/app12042071
Popis: Due to the increasing need for continuous use of face masks caused by COVID-19, it is essential to evaluate the filtration quality that each face mask provides. In this research, an estimation method based on thermal image processing was developed; the main objective was to evaluate the effectiveness of different face masks while being used during breathing. For the acquisition of heat distribution images, a thermographic imaging system was built; moreover, a deep learning model detected the leakage percentage of each face mask with a mAP of 0.9345, recall of 0.842 and F1-score of 0.82. The results obtained from this research revealed that the filtration effectiveness depended on heat loss through the manufacturing material; the proposed estimation method is simple, fast, and can be replicated and operated by people who are not experts in the computer field.
Databáze: Directory of Open Access Journals