TR2005-109

Gesture Registration, Relaxation, and Reuse for Multi-Point Direct-Touch Surfaces
Citation: Wu, M.; Shen, C.; Ryall, K.; Forlines, C.; Balakrishnan, R., "Gesture Registration, Relaxation, and Reuse for Multi-Point Direct-Touch Surfaces", IEEE International Workshop on Horizontal Interactive Human-Computer Systems (TableTop), pp. 185-192, January 2006 (IEEE Xplore)
Date:October 2005
MERL Contact:Clifton Forlines

Freehand gestural interaction with direct-touch computation surfaces has been the focus of significant research activity recently. While many interesting gestural interaction techniques have been proposed, their design has been mostly ad-hoc and has not been presented within a contructive design framework. In this paper, we develop and articulate a set of design principles for constructing - in a systematic and extensible manner - multi-hand gestures on touch surfaces that can sense multiple points and shapes, and can also accommodate conventional point-based input. To illustrate the generality of these design principles, a set of bimanual continuous gestures that embody these principles are developed and explored within a prototype tabletop publishing application. We carried out a user evaluation to assess the usability of these gestures and use the results and observations to suggest future design guidelines.

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