Using Kinect sensors and 22,000 points of computation, Daniel Franke and Cedric Kiefer have created what appears to be a sort of dancing sandstorm. The figure of a dancer seems to appear, dissolve and then reappear again within swirls of simulated motion.

You can watch it here:

unnamed soundsculpture from Daniel Franke on Vimeo.

Nervous Structure by Cuppetelli and Mendoza 

About the project:

Nervous Structure is a series of site-specific, interactive installations consisting of string and fabric structures illuminated with interactive computer graphics that react to the presence and motion of viewers.

The piece consists of three planes that intersect: the physical plane (the structure), the virtual plane (the projection) and the perceptual plane (the viewer and his/her interaction). It is in these various points of intersection that the piece works, and our interest lies in the perceptual problems that arise within these intersections.

See some samples of them in motion here: