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TypeInBraille: Quick Eyes-Free Typing on Smartphones

  • Sergio Mascetti
  • Cristian Bernareggi
  • Matteo Belotti
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7383)

Abstract

In recent years, smartphones (e.g., Apple iPhone) are getting more and more widespread among visually impaired people. Indeed, thanks to natively available screen readers (e.g., VoiceOver) visually impaired persons can access most of the smartphone functionalities and applications. Nonetheless, there are still some operations that require long time or high mental workload to be completed by a visually impaired person. In particular, typing on the on-screen QWERTY keyboard turns out to be challenging in many typical contexts of use of mobile devices (e.g., while moving on a tramcar). In this paper we present the results of an experimental evaluation conducted with visually impaired people to compare the native iPhone on-screen QWERTY keyboard with TypeInBraille, a recently proposed typing technique based on Braille. The experimental evaluation, conducted in different contexts of use, highlights that TypeInBraille significantly improves typing efficiency and accuracy.

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References

  1. 1.
    Mascetti, S., Bernareggi, C., Belotti, M.: TypeInBraille: a braille-based typing application for touchscreen devices. In: Proc. of the 13th Int. ACM SIGACCESS Conf. on Computers and Accessibility, ASSETS 2011. ACM (2011)Google Scholar
  2. 2.
    Guerreiro, T., Lagoá, P., Nicolau, H., Santana, P., Jorge, J.: Mobile text-entry models for people with disabilities. In: Proc. of the 15th European Conference on Cognitive Ergonomics, ECCE 2008, pp. 39:1–39:4. ACM (2008)Google Scholar
  3. 3.
    Yfantidis, G., Evreinov, G.E.: Adaptive blind interaction technique for touchscreens. Universal Access in the Information Society, pp. 328–337 (2006)Google Scholar
  4. 4.
    Bonner, M.N., Brudvik, J.T., Abowd, G.D., Edwards, W.K.: No-Look Notes: Accessible Eyes-Free Multi-touch Text Entry. In: Floréen, P., Krüger, A., Spasojevic, M. (eds.) Pervasive 2010. LNCS, vol. 6030, pp. 409–426. Springer, Heidelberg (2010)CrossRefGoogle Scholar
  5. 5.
    Frey, B., Southern, C., Romero, M.: BrailleTouch: Mobile Texting for the Visually Impaired. In: Stephanidis, C. (ed.) HCII 2011 and UAHCI 2011, Part III. LNCS, vol. 6767, pp. 19–25. Springer, Heidelberg (2011)CrossRefGoogle Scholar
  6. 6.
    Oliveira, J., Guerreiro, T., Nicolau, H., Jorge, J., Gonçalves, D.: Blind people and mobile touch-based text-entry: acknowledging the need for different flavors. In: Proc. of the 13th Int. ACM SIGACCESS Conf. on Computers and Accessibility, ASSETS 2011. ACM (2011)Google Scholar
  7. 7.
    MacKenzie, I.S., Tanaka-Ishii, K.: Text Entry Systems: Mobility, Accessibility, Universality. Morgan Kaufmann Series in Interactive Technologies. Morgan Kaufmann Publishers Inc., San Francisco (2007)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Sergio Mascetti
    • 1
  • Cristian Bernareggi
    • 1
  • Matteo Belotti
    • 1
  1. 1.University of MilanItaly

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