Thermal Imaging Systems

Thermal camera image capturing people sitting in a public space, with varying heat signatures displayed in a spectrum from blue (cooler) to red (warmer). Individual temperatures are highlighted, with the highest reading at 36.8°C, indicating the technology's use in monitoring body temperature

Where a normal camera captures an image using visible light, thermal imaging systems capture images using heat. All objects (living and nonliving) produce or retain heat, so under certain atmospheric conditions – smoke, fog, low light, etc. – thermal imaging is actually superior to visible imaging because it registers objects the naked eye cannot see.

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