Extending the Vocabulary of Touch Events with ThumbRock

David Bonnet 1 Caroline Appert 1, 2 Michel Beaudouin-Lafon 1, 2
1 IN-SITU - Situated interaction
LRI - Laboratoire de Recherche en Informatique, UP11 - Université Paris-Sud - Paris 11, Inria Saclay - Ile de France, CNRS - Centre National de la Recherche Scientifique : UMR8623
Abstract : Compared with mouse-based interaction on a desktop interface, touch-based interaction on a mobile device is quite limited: most applications only support tapping and dragging to perform simple gestures. Finger rolling provides an alternative to tapping but uses a recognition process that relies on either per-user calibration, ex- plicit delimiters or extra hardware, making it difficult to integrate into current touch-based mobile devices. This paper introduces ThumbRock, a ready-to-use micro gesture that consists in rolling the thumb back and forth on the touchscreen. Our algorithm rec- ognizes ThumbRocks with more than 96% accuracy without cali- bration nor explicit delimiter by analyzing the data provided by the touch screen with a low computational cost. The full trace of the gesture is analyzed incrementally to ensure compatibility with other events and to support real-time feedback. This also makes it possible to create a continuous control space as we illustrate with our MicroSlider, a 1D slider manipulated with thumb rolling gestures.
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Communication dans un congrès
GI - Graphics Interface - 2013, May 2013, Regina (Saskatchewan), Canada. 2013
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https://hal.inria.fr/hal-00839414
Contributeur : Caroline Appert <>
Soumis le : vendredi 28 juin 2013 - 07:36:21
Dernière modification le : jeudi 9 février 2017 - 15:58:40

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  • HAL Id : hal-00839414, version 1

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David Bonnet, Caroline Appert, Michel Beaudouin-Lafon. Extending the Vocabulary of Touch Events with ThumbRock. GI - Graphics Interface - 2013, May 2013, Regina (Saskatchewan), Canada. 2013. <hal-00839414>

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