Qanti: a software tool for quick ambiguous non-standard text input

Authors:
Torsten Felzer;Ian Scott MacKenzie;Philipp Beckerle;Stephan Rinderknecht
Affiliations:
Institute for Mechatronic Systems, Technische Universität Darmstadt, Darmstadt, Germany;Department of Computer Science and Engineering, York University, Toronto, Canada;Institute for Mechatronic Systems, Technische Universität Darmstadt, Darmstadt, Germany;Institute for Mechatronic Systems, Technische Universität Darmstadt, Darmstadt, Germany
Venue:
ICCHP'10 Proceedings of the 12th international conference on Computers helping people with special needs
Year:
2010

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Abstract

This paper introduces a single-key text entry application for users with severe physical impairments. The tool combines the idea of a scanning ambiguous keyboard (which promises unusually high entry rates) with intentional muscle contractions as input signals (which require much less physical effort compared to key presses). In addition to the program architecture, the paper presents the results of several evaluations with participants with and without disabilities. An entry speed of 6.59 wpm was achieved.