@conference {7664,
	title = {{\textquotedblleft}Gesture Registration, Relaxation, and Reuse for Multi-Point Direct-Touch Surfaces{\textquotedblright}},
	booktitle = {IEEE International Workshop on Horizontal Interactive Human-Computer Systems (TableTop)},
	year = {2006},
	month = {5 Jan},
	address = {Adelaide, Australia},
	abstract = {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 constructive design framework. In this paper, we develop and articulate a set of design principles for constructing {\textendash} in a systematic and extensible manner {\textendash} 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.},
	url = {http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?isnumber=33359\&arnumber=1579211\&count=28\&index=27},
	author = {Wu, M. and Shen, C. and Ryall, K. and Forlines, C. and Balakrishnan, R.}
}
