A Low-cost Transparent Electric Field Sensor for 3D Interaction on Mobile Devices

Abstract : We contribute a thin, transparent, and low-cost design for electric field sensing, allowing for 3D finger and hand tracking, as well as in-air gestures on mobile devices. Our approach requires no direct instrumentation of the hand or body, and is non-optical, allowing for a compact form-factor that is resilient to ambient illumination. Our simple driver electronics are based on an off-the-shelf chip that removes the need for building custom analog electronics. We describe the design of our transparent electrode array, and present a machine learning algorithm for mapping from signal measurements at the receivers to 3D positions. We demonstrate non-contact motion gestures, and precise 3D hand and finger localization. We conclude by discussing limitations and future work.
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https://hal.inria.fr/hal-00973234
Contributor : Mathieu Le Goc <>
Submitted on : Friday, April 4, 2014 - 10:18:26 AM
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Mathieu Le Goc, Stuart Taylor, Shahram Izadi, Cem Keskin. A Low-cost Transparent Electric Field Sensor for 3D Interaction on Mobile Devices. Proceedings of the 2014 Annual Conference on Human Factors in Computing Systems (CHI 2014), Apr 2014, Toronto, Canada. ⟨hal-00973234⟩

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