Thermal Imaging

These are unprocessed, yet still quite useful Infrared Thermal images.

Looking through these photos, you can immediately tell this is unlike a normal color sensing camera. The Infrared (IR) imaging sensor on this aircraft takes a 640x512 pixel thermal photograph. In the images, each pixel represents a different temperature value. The color is then added to highlight differences in temperature. In these demo photos, the brighter yellow something is, represents a hotter surface.

Different color palettes are popular for other types of applications. You may have seen military or police applications using a grayscale palette with white representing hot or vice versa.

Another unique use case for thermal cameras is search and rescue. the color palette can be tuned so the narrow range of human body temperatures are highlighted red, leaving anything colder as dark gray to black, and anything hotter as light gray to white

This photo was taken on a 53°f day around 10AM.  Some roofing heat loss is normal, however, we can see heat leakage due to inconsistent insulation marked by the brighter yellow vertical bands on the base of the roof.Infrared radiation can be detected from quite a distance when the target is large enough.Look at the three vehicles. The two glowing engine compartments indicate these vehicles were recently driven.The sidewalk is warming up throughout the day, It's getting closer to skin temperature, but the engine is glowing with heat.Looking at the roofing vents, you can see the heat being released is warmer than what's being reflected off the shingles or coming through the material.  You can also see casted shadows showing cooler.  The sun is off the righthand side of this photo.Infrared radiation cannot pass through glass.  This photo shows us the sun is directly overhead as the reflections bounce off the windshield.  Also, the ground has warmed up quite significantly.  Rocks and concrete hold heat extremely well.The roof over the entrance is cooler because there is no livable space under it to leach heat from.

By trade, I'm not a professional photographer, however

Useful or interesting information derived from the IR demo photographs:

  1. This photo was taken on a 53°f day around 10AM. Some roofing heat loss is normal, however, we can see heat leakage due to inconsistent insulation marked by the brighter yellow vertical bands on the base of the roof.

  2. Same flight as photo 1. Infrared radiation can be detected from quite a distance when the target is large enough.