1 NIR and SWIR cameras primarily detect scattered item radiation and call for external irradiation supplied by the sun. Many observed objects have temperatures beneath 100°C (212°File). Their respective item radiation is too weak to become detected by NIR and SWIR sensors, but MWIR and LWIR cameras easily detect these https://troyknprq.blogscribble.com/28613010/the-definitive-guide-to-ir-thermal-imaging