Real-Time Fever Screening refers to the use of technologies and systems that can quickly and continuously monitor individuals for elevated body temperatures in real-time. The goal is to identify individuals who may have an elevated body temperature, which could be indicative of a fever, and to take appropriate measures such as further screening, isolation, or medical attention. Real-time fever screening has gained prominence, especially during public health crises such as the COVID-19 pandemic, where rapid identification of individuals with potential symptoms is crucial for containing the spread of infectious diseases.

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F3S: Free Flow Fever Screening

F3S: Free Flow Fever Screening Identification of people with elevated body temperature can reduce or dramatically slow down the spread of infectious diseases like COVID-19. We present a novel fever-screening system, F 3 S, that uses edge machine learning techniques to accurately measure core body temperatures of multiple individuals in a free-flow setting. F 3 S performs real-time sensor fusion of visual camera with thermal camera data streams to detect elevated body temperature, and it has several unique features: (a) visual and thermal streams represent very different modalities, and we dynamically associate semantically-equivalent regions across visual and thermal frames by using a new, dynamic alignment technique that analyzes content and context in real-time, (b) we track people through occlusions, identify the eye (inner canthus), forehead, face and head regions where possible, and provide an accurate temperature reading by using a prioritized refinement algorithm, and (c) we robustly detect elevated body temperature even in the presence of personal protective equipment like masks, or sunglasses or hats, all of which can be affected by hot weather and lead to spurious temperature readings. F 3 S has been deployed at over a dozen large commercial establishments, providing contact-less, free-flow, real-time fever screening for thousands of employees and customers in indoors and outdoor settings.