1 NIR and SWIR cameras primarily detect scattered object radiation and involve exterior irradiation provided by the Sunlight. Several noticed objects have temperatures below one hundred°C (212°File). Their respective object radiation is simply too weak being detected by NIR and SWIR sensors, but MWIR and LWIR cameras conveniently detect these https://thermalimaging49900.ttblogs.com/6336825/considerations-to-know-about-thermal-imaging