FTIR (frustrated total internal reflection)

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Uploaded by on Feb 21, 2006

From Article on http://videotechnology.blogspot.com
Multi-Touch Sensing through Frustrated Total Internal Reflection

Detecting multiple finger touches on a rear-projection surface.

We introduce a simple technique that enables robust multi-touch sensing at a minimum of engineering effort and expense. It relies on frustrated total internal reflection (FTIR), a technique familiar to the biometrics community where it is used for fingerprint image acquisition. It acquires true touch information at high spatial and temporal resolutions, and is scalable to very large installations.

Han, J. Y. 2005. Low-Cost Multi-Touch Sensing through Frustrated Total Internal Reflection. In Proceedings of the 18th Annual ACM Symposium on User Interface Software and Technology

www.advancedgui.com

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Howto & Style

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  • Theres another vid of this device that shows much more cool things, and it has music lol.

    Just search "touch screen" and you will find it, theres like 7 of the same vid :p

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