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Multitouch: FTIR Jason Morrison [email_address] Matthew Kampschmidt [email_address]
<ul><li>More Multitouch from Jeff Han </li></ul><ul><li>Even More Multitouch! </li></ul>
What is FTIR?
What is FTIR? <ul><li>Frustrated Total Internal Reflection </li></ul>
What is FTIR? <ul><li>Frustrated Total Internal Reflection </li></ul><ul><li>Say what, now? </li></ul>
http://cs.nyu.edu/~jhan/ftirsense/
… and multitouch? What’s FTIR got to do with that?
The Basic Idea <ul><li>Build a table </li></ul><ul><li>Rear-project an image on it </li></ul><ul><li>Mount infrared LEDs f...
http://digitalstratum.com/programming/ftir_build
http://digitalstratum.com/programming/ftir_build
http://digitalstratum.com/programming/ftir_build
Related developments <ul><li>Single touch </li></ul><ul><ul><li>Gesturing </li></ul></ul><ul><li>More expensive multitouch...
FTIR hits a sweet spot: Cheap, large format, multi-user installations
Table Construction <ul><li>Acrylic or polycarbonate </li></ul><ul><li>Input </li></ul><ul><ul><li>Infrared LEDs </li></ul>...
Enabling Technology <ul><li>Direct tactile UI </li></ul><ul><li>Intuitive gestures, ZUIs </li></ul><ul><li>Concurrent mult...
Areas for Development <ul><li>Hardware questions </li></ul><ul><ul><li>Compliant surface </li></ul></ul><ul><ul><li>LED in...
Areas for Development <ul><li>Software development </li></ul><ul><ul><li>Blob detection: Touchlib is good, GPGPU is better...
Areas for Development <ul><li>Gesture standards </li></ul><ul><ul><li>Fingerworks http://www.fingerworks.com/userguides.ht...
Other interactive tables <ul><ul><li>http://www.iua.upf.es/mtg/reacTable/ </li></ul></ul><ul><ul><li>http :// www.whitenoi...
Questions? Jason Morrison [email_address] Matthew Kampschmidt [email_address]
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Multitouch: FTIR

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An intoduction to using FTIR for multitouch

Published in: Art & Photos, Business

Transcript of "Multitouch: FTIR"

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