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Title:
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GPALM: A SIMPLIFIED ACCELEROMETER-BASED VIRTUAL KEYBOARD |
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Author(s):
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Ilias Sarafis , Anastasios Markoulidis |
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ISBN:
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978-972-8924-85-0 |
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Editors:
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Katherine Blashki |
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Year:
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2009 |
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Edition:
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Single |
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Keywords:
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Virtual keyboard, accelerometers, text entry, input devices. |
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Type:
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Full Paper |
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First Page:
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95 |
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Last Page:
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104 |
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Language:
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English |
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Cover:
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Full Contents:
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click to dowload 
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Paper Abstract:
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In this paper we describe a novel accelerometer-based virtual keyboard incorporating only two 3-axis wireless sensors,
one for each hand. X-Y-Z palm acceleration data are acquired and analyzed by an algorithm specifically developed for
gesture recognition. User mimics the traditional two hands typing, but in an arbitrary surface and in a simplified manner,
i.e. using only nine multi-letter virtual keys per hand. A disambiguation lexicon-based algorithm is then used to predict
the typed word from a built-in dictionary. Special gestures for non-text characters are also mapped and recognized. The
system can be used in any application requiring zero form factor and minimized or no contact with a medium, as in a
large number of cases in human-computer interaction, virtual reality, game control, 3D designs etc. |
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