Would heat sensors be able to see a person’s body heat if the person was the same temperature as the outside environment?
As I seem to remember, wasn’t this a device in the movie “The Thomas Crown Affair” -by raising the temperature of the gallery the heat sensors were disabled allowing the theft. This was then tried in a recent science-entertainment programme on UK TV - can’t recall the name but I think it worked, but not as well as the movie. The problem is that there are still heat variations, allowing motion to be picked up using IR sensitive cameras.
It depends upon the thermal sensing system being used. Atmospheric volumes will tend to have a much greater degree of thermal nonuniformity due to convection and turbulence. The human body’s core area is a much more stable heat source. It would be rather simple to acquire a human body’s thermal signature when compared with an atmospheric region.
If you had non-imaging thermal detectors, they might be aliased by elevating the ambient temperature to ~98.6° F. Any sort of imaging system, especially one with motion detection or segmented detector signal averaging probably would not.
Not sure about The Thomas Crown Affair, but the movie Sneakers definitely had heating a room to body temperature to defeat thermal sensors in the plot.
“The girl with the uzi - is she single?”
Thanks!
I thought this thead was in reference to the movie “Predator”.