Touché: Enhancing Touch Interaction on Humans, Liquids, and Everyday Objects

Touché proposes a novel form of capacitive touch sensing that we call Swept Frequency Capacitive Sensing (SFCS). This technology can infuse rich touch and gesture sensitivity into a variety of analogue and digital objects. For example, Touché can not only detect touch events, but also recognize complex configurations of the hands and body. Such contextual information can enhance a broad range of applications, from conventional touchscreens to unique contexts and materials, including the human body and liquids. Instrumenting objects with Touché is trivial: a single electrode needs to be attached or embedded in an object and connected to our sensor. In the case of conductive objects, e.g., doorknobs or a body of water, the object itself acts as an intrinsic electrode – no additional instrumentation is necessary. Finally, Touché is inexpensive, safe, low power and compact; it can be easily embedded or temporarily attached anywhere touch and gesture sensitivity is desired.


Munehiko Sato
Ivan Poupyrev

This research was undertaken at Disney Research Pittsburgh.



Sato, M. Poupyrev, I, and Harrison, C. 2012. Touché: Enhancing Touch Interaction on Humans, Screens, Liquids, and Everyday Objects. In Proceedings of the 30th Annual SIGCHI Conference on Human Factors in Computing Systems (Austin, Texas, May 5 - 10, 2012). CHI '12. ACM, New York, NY. 483-492.

© Chris Harrison