Thermal Infrared Imaging

Thermal imaging is a non-contact method in which the radiation pattern of an object is converted into a visible image called thermal image or thermogram. All the objects at temperature above absolute zero (−273 °C) emit infrared radiation. The infrared band with wavelength from 3 to 14 µm is called thermal infrared region. This is used in imaging applications that uses heat signatures. Thermal imaging maps the surface temperature of any object with high thermal and spatial resolutions.