Ah, the more users play with Kinect, now that there is an open source driver, the better things become. Here we see a Jedi Knight in training who has used the OpenKinect drivers and OpenCV to make himself into a Jedi Academy cadet.
Here's what he said on his YouTube post:
Proof of concept of tracking and rendering a lightsaber in real time using a Kinect hooked up to a PC. Imagine the possibilities.
Best viewed in fullscreen 480p. I track a wooden stick and I overlay the light glow on the computer. Drivers using OpenKinect, image processing, tracking, and rendering using OpenCV. Audio recorded and processed using Audacity and played using libao.