Longitudinal study on text entry by gazing and smiling

Tuisku, Outi; Rantanen, Ville; Surakka, Veikko (2016)
 
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Tuisku, Outi
Rantanen, Ville
Surakka, Veikko
2016

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doi:10.1145/2857491.2857501
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https://urn.fi/urn:nbn:fi:tty-201604043770

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This study presents the results of a longitudinal study on multimodal text entry where objects were selected by gazing and smiling. Gaze was used to point at the desired characters and smiling movements were performed to select them. Participants (N=12) took part in the experiments where they entered text for a total of 2.5 hours in ten 15-minute-long sessions during one-month time period. The results showed that the text entry rate improved with practice from 4.1 to 6.7 words per minute. However, the learning curve had not reached its plateau phase at the end of the experiment. Subjective ratings showed that the participants appreciated this multimodal technique.
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