“…The pandemic of Covid-19 (Corona-Virus – Disease-2019) has boosted the search for these systems to track possibly infected people, aiming to reduce the disease transmission. Faced with this scenario, management of places such as airports, shopping malls, schools, and others are implementing sanitary barriers to detect feverish people, preferably using non-contact infrared based instruments (NCIR-based), such as thermal imagers and pyrometers, to measure body temperature [ [1] , [2] , [3] , [4] , [5] , [6] , [7] , [8] , [9] , [10] , [11] ].…”