Frieder Weiss is a Berlin based video and installation artist and  an expert in realtime computing and interactive computer systems in performance art. He is the author of video motion sensing software especially designed for use with dance, music and computer art.  

Liquid Grid
Frieder Weiss
Whenever we enter a room with other people in it, this room is instantly remodeled. We are judging the situation, defining our position, might make eye-contact or avoid it. Small gestures or extroverted poses occupy an equivalent space for us...