1 NIR and SWIR cameras typically detect scattered object radiation and need exterior irradiation furnished by the Solar. That IR light is then detected to produce the FT-IR spectrum, which is like a “chemical fingerprint” of the sample. The data contained inside the spectrum can be employed to recognize, characterize, https://infrared-thermal-imaging30517.blogoscience.com/34163074/detailed-notes-on-infrared-imaging