Making gestural input from arm-worn inertial sensors more practical

Authors:
Louis Kratz;Daniel Morris;T. Scott Saponas
Affiliations:
Drexel University, Philadelphia, PA & Microsoft Research, Redmond, WA, USA;Microsoft Research, Redmond, Washington, United States;Microsoft Research, Redmond, Washington, United States
Venue:
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Year:
2012

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Abstract

Gestural input can greatly improve computing experiences away from the desktop, and has the potential to provide always-available access to computing. Specifically, accelerometers and gyroscopes worn on the arm (e.g., in a wristwatch) can sense arm gestures, enabling natural input in untethered scenarios. Two core components of any gesture recognition system are detecting when a gesture is occurring and classifying which gesture a person has performed. In previous work, accurate detection has required significant computation, and high-accuracy classification has come at the cost of training the system on a per-user basis. In this note, we present a gesture detection method whose computational complexity does not depend on the duration of the gesture, and describe a novel method for recognizing gestures with only a single example from a new user.