Is there a difference between thermal imaging and infra-red imaging?

Question

Is there a difference between thermal imaging and infra-red imaging?

Answer 1

Thermal is heat

Infra-red is light spectrum outside our normal viewing or sight.

Answer 2

With infra-red you only see outlines of warm objects, where as with thermal imaging you see the different degrees of heat through color.

Answer 3

they are similiar but not exactly the same

Answer 4

Thermal is a special category of infrared.  Most infrared don't include the thermal spectrum but use an infrared light source.  Thermal cameras are much more expensive.