This is a graphical interface inspired by the movie "Minority Report". It uses the Kinect sensor from Microsoft, and the recently released libfreenect driver for interfacing with the Kinect in linux. The GUI and the hand detection software were written at MIT to interface with the open source robotics package 'ROS', developed by Willow Garage (willowgarage.com).
The hand detection software showcases the abilities of the Point Cloud Library (PCL), a part of ROS that MIT has been helping to optimize. The hand detection software is able to distinguish hands and fingers in a cloud of more than 60,000 points at 30 frames per second, allowing natural, real time interaction.
Download: Source Code