14 March 2017 Standardized assessment of infrared thermographic fever screening system performance
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Proceedings Volume 10056, Design and Quality for Biomedical Technologies X; 100560H (2017); doi: 10.1117/12.2253882
Event: SPIE BiOS, 2017, San Francisco, California, United States
Abstract
Thermal modalities represent the only currently viable mass fever screening approach for outbreaks of infectious disease pandemics such as Ebola and SARS. Non-contact infrared thermometers (NCITs) and infrared thermographs (IRTs) have been previously used for mass fever screening in transportation hubs such as airports to reduce the spread of disease. While NCITs remain a more popular choice for fever screening in the field and at fixed locations, there has been increasing evidence in the literature that IRTs can provide greater accuracy in estimating core body temperature if appropriate measurement practices are applied – including the use of technically suitable thermographs. Therefore, the purpose of this study was to develop a battery of evaluation test methods for standardized, objective and quantitative assessment of thermograph performance characteristics critical to assessing suitability for clinical use. These factors include stability, drift, uniformity, minimum resolvable temperature difference, and accuracy. Two commercial IRT models were characterized. An external temperature reference source with high temperature accuracy was utilized as part of the screening thermograph. Results showed that both IRTs are relatively accurate and stable (<1% error of reading with stability of ±0.05°C). Overall, results of this study may facilitate development of standardized consensus test methods to enable consistent and accurate use of IRTs for fever screening.
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Pejhman Ghassemi, Joshua Pfefer, Jon Casamento, Quanzeng Wang, "Standardized assessment of infrared thermographic fever screening system performance", Proc. SPIE 10056, Design and Quality for Biomedical Technologies X, 100560H (14 March 2017); doi: 10.1117/12.2253882; http://dx.doi.org/10.1117/12.2253882
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KEYWORDS
Minimum resolvable temperature difference

Infrared radiation

Temperature metrology

Thermography

Spatial frequencies

Standards development

Calibration

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