From YouTube user RangeVision 3D Scanners, a quick and nice video (around 2 minutes) that visually explains how structured light scanners work.
What role do cameras and projector play? How the system measures the distance to the object? How is triangulation related to the process of 3D scanning? Get answers to all these questions in less than two minutes!
Watch the video on RangeVision 3D scanners’ YouTube channel: