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Multitouch: FTIR

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An intoduction to using FTIR for multitouch

An intoduction to using FTIR for multitouch

Published in: Art & Photos, Business

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  • 1. Multitouch: FTIR Jason Morrison [email_address] Matthew Kampschmidt [email_address]
  • 2.
    • More Multitouch from Jeff Han
    • Even More Multitouch!
  • 3. What is FTIR?
  • 4. What is FTIR?
    • Frustrated Total Internal Reflection
  • 5. What is FTIR?
    • Frustrated Total Internal Reflection
    • Say what, now?
  • 6. http://cs.nyu.edu/~jhan/ftirsense/
  • 7. … and multitouch? What’s FTIR got to do with that?
  • 8. The Basic Idea
    • Build a table
    • Rear-project an image on it
    • Mount infrared LEDs for FTIR
    • Infrared camera to track fingers
  • 9. http://digitalstratum.com/programming/ftir_build
  • 10. http://digitalstratum.com/programming/ftir_build
  • 11. http://digitalstratum.com/programming/ftir_build
  • 12. Related developments
    • Single touch
      • Gesturing
    • More expensive multitouch
      • iPhone
  • 13. FTIR hits a sweet spot: Cheap, large format, multi-user installations
  • 14. Table Construction
    • Acrylic or polycarbonate
    • Input
      • Infrared LEDs
      • Compliant surface
      • Infrared camera
    • Output
      • Digital projector
      • Diffusal surface
  • 15. Enabling Technology
    • Direct tactile UI
    • Intuitive gestures, ZUIs
    • Concurrent multiple users
    • Can be used right now! (kind of)
  • 16. Areas for Development
    • Hardware questions
      • Compliant surface
      • LED interface optimization
  • 17. Areas for Development
    • Software development
      • Blob detection: Touchlib is good, GPGPU is better?
      • Libraries
      • Tools (VVVV, processing)
      • Bridges (FLOSC)
      • Abstractions
  • 18. Areas for Development
    • Gesture standards
      • Fingerworks http://www.fingerworks.com/userguides.html
      • Community http :// nuigroup.com/forums/viewthread/95/
  • 19. Other interactive tables
      • http://www.iua.upf.es/mtg/reacTable/
      • http :// www.whitenoiseaudio.com/touchlib/
  • 20. Questions? Jason Morrison [email_address] Matthew Kampschmidt [email_address]