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Raphael Wimmer, Paul Holleis, Matthias Kranz, Albrecht Schmidt
Thracker - Using Capacitive Sensing for Gesture Recognition
In Proceedings of the 6th International Workshop on Smart Appliances and Wearable Computing (IWSAWC), ISBN 0-7695-2541-5 Lisbon, Portugal, July 2006 (bib)

In this paper we present Thracker - a low-cost and robust hardware to track hand gestures in front of a screen or small-scale active spaces like public displays or posters. Thracker uses capacitive sensing for tracking user input. Thracker allows for entire new interaction modes like picking and dropping an object on the screen with the hand. We present a fully working prototype and a short user study to confirm our findings.