Interactive sun exhibit uses 3D projection screen and Kinect

http://hackadaycom.files.wordpress.c...pg?w=470&h=264
A few common components come together to make this interactive museum exhibit that teaches about the sun (translated). It uses three main physical components to pull this off. The first is a custom projection surface. It’s a hemisphere of the sun with a slice cut out of it. This is presumably coated with the paint you’d use to turn a wall into a projection surface. Software translates a projected image to map correctly on the topographic surface, resulting in what you see above, with a Kinect for user input.
Take a look at the video embedded after the break to see how the exhibit works. It instructs patrons to stand on a pair of footprint markers on the floor. This positions them at the proper range from a Kinect depth camera, which translates their outline into cursor commands. By moving a hand around they can explore the different parts of the sun.
We’re in love with how easy this type of interaction is becoming. Granted, there’s a fair amount of work that goes into to the coding for the project, but the physical build is quick and relatively inexpensive.

http://hackaday.com/2011/04/20/inter...en-and-kinect/