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Title: Performance assessment of low-cost thermal cameras for medical applications
Authors: Villa, Enrique
Arteaga-Marrero, Natalia
Ruiz Alzola, Juan Bautista 
UNESCO Clasification: 530602 Innovación tecnológica
32 Ciencias médicas
Keywords: Thermal cameras
Medical applications
Diabetic foot
Microbolometer, et al
Issue Date: 2020
Journal: Sensors 
Abstract: Thermal imaging is a promising technology in the medical field. Recent developments in low-cost infrared (IR) sensors, compatible with smartphones, provide competitive advantages for home-monitoring applications. However, these sensors present reduced capabilities compared to more expensive high-end devices. In this work, the characterization of thermal cameras is described and carried out. This characterization includes non-uniformity (NU) effects and correction as well as the thermal cameras’ dependence on room temperature, noise-equivalent temperature difference (NETD), and response curve stability with temperature. Results show that low-cost thermal cameras offer good performance, especially when used in temperature-controlled environments, providing evidence of the suitability of such sensors for medical applications, particularly in the assessment of diabetic foot ulcers on which we focused this study.
ISSN: 1424-8220
DOI: 10.3390/s20051321
Source: Sensors [ISSN 1424-8220], v. 20 (5), 1321
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