The magic carpet: physical sensing for immersive environments

  • Authors:
  • Joseph Paradiso;Craig Abler;Kai-yuh Hsiao;Matthew Reynolds

  • Affiliations:
  • MIT Media Laboratory, Cambridge, MA;MIT Media Laboratory, Cambridge, MA;MIT Media Laboratory, Cambridge, MA;MIT Media Laboratory, Cambridge, MA

  • Venue:
  • CHI EA '97 CHI '97 Extended Abstracts on Human Factors in Computing Systems
  • Year:
  • 1997

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Abstract

An interactive environment has been developed that uses a pair of Doppler radars to measure upper-body kinematics (velocity, direction of motion, amount of motion) and a grid of piezoelectric wires hidden under a 6 x 10 foot carpet to monitor dynamic foot position and pressure. This system has been used in an audio installation, where users launch and modify complex musical sounds and sequences as they wander about the carpet. This paper describes the floor and radar systems, quantifies their performance, and outlines the musical application.