International Journal of Science , Engineering and Management (IJSEM)

Monthly Journal for Science , Engineering and Management

Volume2,December 2017,

Topic : On-screen Swipe Keyboard Using Gaze-based Method

Authors:Morokot Cheat || Manop Wongsaisuwan

Abstract:The group of disabled people have a limitation in quality of life in everyday activity. Assistive technology using eye gaze is researched to improve their life in learning. It will be beneficial to handicapped people to type words quickly and easily by themselves. Scanning gaze-path will be inaccurate if we scan wrong for the first letter since users will hit other keys unintentionally during saccade for the intended letter. In this paper, we introduce on-screen keyboard for text-entry with the integration of dwell-free and dwell-time method instead of using fingers. A dwell-time method is applied for the first letter and the last letter to make sure that the users activate the right letter. After users activate the first letter, they can swipe their eye gaze with a dwell-free method to make their typing faster. To predict intended words which users would like to type, the Revised Levenshtein algorithm is used to calculate the distance between scan-path words and words in the database. The highest score is considered as intended words that users intend to type. Scoring criteria include distance, word frequency, and stored words that users used to type. In the experiment, the performance of less letter is higher than many letters because of missing many gaze-path letters since setting threshold of fixation duration is so high..

Keywords: Assistive technology, Dwell-free, Dwell-time, Gaze path, Swipe keyboard.

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DOI: 01.1617/vol4/iss12/pid46251


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Editor-in-Chief

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Dr.Muhammad Ishtiaq,
Mirpur University of
Science & Technology,
Mirpur, Azad Kasmir.

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IMPACT FACTOR: 2.7

ISSN(Online): 2456-1304

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Thomson Reuters ID : q-6288-2016.
ORCiD Research ID : 0000-0001-9540-6799

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Journal Code : IJSEM
Electronic ISSN : 2456-1304
Impact Factor : 2.7
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