What is FLIR? How Forward-Looking Infrared Works & Why It Matters

The video introduces forward-looking infrared, or FLIR, as imaging that detects heat rather than visible light. The speaker describes its use in search and rescue, equipment inspection and identifying heat loss in buildings, and explains how thermal contrast can reveal a warmer subject against its surroundings.

It also covers the lower resolution of small thermal sensors, the role of microbolometers and the limits of using thermal imaging alone. The speaker argues that combining thermal and visible cameras through sensor fusion could preserve useful heat information while adding the detail of a conventional vision system.