SenseBloom presentation at Barcamp Coimbra - Primavera '09 How we built multitouch hardware and software from the ground up.

1. Multitouch
Building the next-gen
human-computer interface
Miguel Antunes / Tiago Serra / Tony Gonçalves
Wednesday, April 1, 2009

2. 1982: Flexible Machine Interface
(Nimish Mehta , University of Toronto)
1983: Video Place / Video
Desk (Myron Krueger)
1985: Multi-Touch Tablet
(Input Research Group,
University of Toronto)
~1998: Fingerworks
(Newark, Delaware)
Wednesday, April 1, 2009

3. 2003: Jazz Mutant
(Bordeaux France)
2006: Synaptics & Pilotfish
(San Jose)
Wednesday, April 1, 2009

4. Jeff Han - NYU - 2006
Wednesday, April 1, 2009

5. Microsoft Surface
Apple iPhone - 2007
Computing - 2007
Wednesday, April 1, 2009

6. SenseBloom - 2008 :)
Wednesday, April 1, 2009

7. TECHNIQUES
Wednesday, April 1, 2009

8. Frustrated Total Internal Reflection (FTIR)
Wednesday, April 1, 2009

9. Diffused Illumination (DI)
Wednesday, April 1, 2009

10. Laser Light Plane (LLP)
Wednesday, April 1, 2009

11. Diffused Surface Illumination (DSI)
Wednesday, April 1, 2009

12. OpenSource Software
touchlib
tbeta
OpenTouch
Xorg MPX
TouchAPI
BBTouch
ReacTIVision
...
Wednesday, April 1, 2009

13. Touchlib
Wednesday, April 1, 2009

14. BBTouch
Wednesday, April 1, 2009

15. TBeta
Wednesday, April 1, 2009

16. ReacTIVision
Wednesday, April 1, 2009

17. Design matters
≠
Wednesday, April 1, 2009

18. Touch-tablets vs Touch screens
Discrete vs Continuous
Degrees of Freedom
Size matters
Orientation Matters - Horizontal vs Vertical
There is more to touch-sensing than contact and position
Degree of touch / Pressure sensitivity
Angle of approach
Force vectors
Blob Size matters
Single-finger vs multi-finger
Multi-point vs multi-touch
Multi-hand vs multi-finger
Multi-person vs multi-touch
Points vs Gesture
Stylus and/or finger
Hands and fingers vs Objects
Different vs The Same
Bill Buxton - http://www.billbuxton.com/multitouchOverview.html
Wednesday, April 1, 2009

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20. LLP HOWTO
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36. Info
http://nuigroup.com
Wednesday, April 1, 2009

37. Videos
http://vimeo.com/hci
Wednesday, April 1, 2009

38. team@sensebloom.com
Wednesday, April 1, 2009