Having a lot of experience with different sensors, she decided to fuse all of this together to make a magic wand. The wand contains an inertial measurement unit (IMU) so it can detect gestures.

The basic idea is that each wand has a reflector in the tip, which coupled with strong IR illumination makes them glow on camera. This allows for easy gesture recognition using computer vision ...

and then he’ll get hit with an image of a hand grasping that wood and using it to perform magic. That’s when he knows it’s not just a piece of wood; it’s a wand. At least that’s his take.