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Google I/O (2011):

Yong Zhao, Rich Gossweiler
Back in 2011 Yong Zhao, a brilliant computer vision researcher, developed a very fast way to do head tracking on a tablet using the GPU (leaving the CPU free for other tasks). I took this capability and wrote several prototypes to illustrate how head movement and hand movement can be decoupled or combined to navigate 2D and 3D spaces on a tablet.
In once demo, we created a virtual world where the viewer could tip their head to look around objects. This demo was shown at google I/O's Android keynote.
video: Head Tracking on a tablet for Google I/O 2011
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