Vouch: multimodal touch-and-voice input for smart watches under difficult operating conditions

Vouch: multimodal touch-and-voice input for smart watches under difficult operating conditions We consider a multimodal method for smart-watch text entry, called “Vouch,” which combines touch and voice input. Touch input is familiar and has good ergonomic accessibility, but is limited by the fat-finger problem (or equivalently, the screen size) and is sensitive to user motion. Voice input is mostly immune to slow user motion, but its reliability may suffer from environmental noise. Together, however, such characteristics can complement each other when coping with the difficult smart-watch operating conditions. With Vouch, the user makes an approximate touch among the densely distributed alphabetic keys; the accompanying voice input can be used to effectively disambiguate the target from among possible candidates, if not identify the target outright. We present a prototype implementation of the proposed multimodal input method and compare its performance and usability to the conventional unimodal method. We focus particularly on the potential improvement under difficult operating conditions, such as when the user is in motion. The comparative experiment validates our hypothesis that the Vouch multimodal approach would show more reliable recognition performance and higher usability. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal on Multimodal User Interfaces Springer Journals

Vouch: multimodal touch-and-voice input for smart watches under difficult operating conditions

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Publisher
Springer International Publishing
Copyright
Copyright © 2017 by Springer International Publishing AG
Subject
Computer Science; User Interfaces and Human Computer Interaction; Signal,Image and Speech Processing; Image Processing and Computer Vision
ISSN
1783-7677
eISSN
1783-8738
D.O.I.
10.1007/s12193-017-0246-y
Publisher site
See Article on Publisher Site

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