Tech

A quick overview of what the app does:

• Each video frame is subdivided into a number of regions and compared with the previous frame to get an estimate of the motion per frame. (Overlayed on video)
• Auto-correlation of the difference signal is calculated to get an estimate of the motion's period. (Plotted in red)
• The period estimate is used to control the tempo of a sequencer which is pre-programmed with a beat track. (Plotted as a black circle on the red graph)
• The beats are made using a FFT based synthesizer.
• Yellow circles shows various parameters (undocumented!).
• The app could use some heavy tweaking... ;)

Demo

You will need:

• Flash player 10.
• A webcam
• Stylish moves
• MAC: Try Safari
• WIN: Try Firefox
• The aim is to produce periodical movement in the left part of the screen to build up a tempo (seen in the red graphs in the bottom). Try waving in the left area of the screen...

Check out the demo here (warning: will probably crash your browser if no webcam is detected)

Made by Svante Stadler and Filip Bonnevier

(svante.stadler at gmail.com) and (filip.bonnevier at gmail.com)

Please e-mail us if you have any questions! :)