Ticker: An Adaptive Single-Switch Text Entry Method for Visually Impaired Users.
MacKay, David JC
IEEE Trans Pattern Anal Mach Intell
Institute of Electrical and Electronics Engineers (IEEE)
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Nel, E., Kristensson, P. O., & MacKay, D. J. (2019). Ticker: An Adaptive Single-Switch Text Entry Method for Visually Impaired Users.. IEEE Trans Pattern Anal Mach Intell, 41 (11), 2756-2769. https://doi.org/10.1109/TPAMI.2018.2865897
Ticker is a probabilistic stereophonic single-switch text entry method for visually-impaired users with motor disabilities who rely on single-switch scanning systems to communicate. Such scanning systems are sensitive to a variety of noise sources, which are inevitably introduced in practical use of single-switch systems. Ticker uses a novel interaction model based on stereophonic sound coupled with statistical models for robust inference of the user's intended text in the presence of noise. As a consequence of its design, Ticker is resilient to noise and therefore a practical solution for single-switch scanning systems. Ticker's performance is validated using a combination of simulations and empirical user studies.
Humans, Acoustic Stimulation, Bayes Theorem, Communication Aids for Disabled, Algorithms, Computer Simulation, Software, User-Computer Interface, Visually Impaired Persons, Motor Disorders
The work was funded by the Aegis EU project and the Gatsby Charitable Foundation.
External DOI: https://doi.org/10.1109/TPAMI.2018.2865897
This record's URL: https://www.repository.cam.ac.uk/handle/1810/280065