2013
Contribution to book  Open Access

Vibro-tactile enrichment improves blind user interaction with mobile touchscreens

Buzzi M. C., Buzzi M., Leporini B., Paratore M. T.

Mobile accessibility  blind  Accessibility  Blind users  [ INFO ] Computer Science [cs]  Haptic UIs  Usability 

Interaction via mobile devices is a challenge for blind users, who often encounter severe accessibility and usability problems. The main issues are due to the lack of hardware keys, making it difficult to quickly reach an area or activate functions, and to the new way of interacting via touchscreen. A touchscreen has no specific reference points detectable by feel, so a blind user cannot easily understand exactly where (s)he is positioned on the interface nor readily find a specific item/function. Alternative ways to provide content are mainly vocal and may be inadequate in some situations, e.g., noisy environments. In this study we investigate enriching the user interfaces of touchscreen mobile devices to facilitate blind users' orientation. We propose a possible solution for improving interaction based on the vibro-tactile channel. After introducing the idea behind our approach, two implemented Android Apps including the enriched user interfaces are shown and discussed.

Source: HUMAN-COMPUTER INTERACTION - INTERACT 2013, PT I, edited by Kotze, P; Marsden, G; Lindgaard, G; Wesson, J; Winckler, M, pp. 641–648, 2013


1. Arroba, P., Vallejo, J.C., Araujo, A., Fraga D., Moya, J.M.: A Methodology for Developing Accessible Mobile Platforms over Leading Devices for Visually Impaired People. In: Ambient Assisted Living. LNCS 6693, pp. 209-215. Springer. DOI: 10.1007/978-3-642- 21303-8_29 (2011)
2. Bonner, M., Brudvik, J., Abowd, G., Edwards, W.K.: No-Look Notes: Accessible eyesfree multi-touch text entry. In: Pervasive 2010, LNCS 6030, pp. 409-426. Springer (2010)
3. Brewster, S., Brown, L. M.: Tactons: structured tactile messages for non-visual information display. In: A. Cockburn (Ed.) Fifth Conf. on Australasian User Interface (AUIC '04), Vol. 28. Australian Computer Society Inc., Darlinghurst, Australia, pp. 15-23 (2004)
4. Goble, C., Harper, S., Stevens, R.: The travails of visually impaired web travellers. In: Hypertext 2000, pp. 1-10 (2000)
5. Kane, S.K., Wobbrock, J.O., Ladner, R.E.: Usable gestures for blind people: understanding preference and performance. In: CHI '11, pp. 413-422. ACM (2011)
6. Koskinen, E., Kaaresoja, T., Laitinen, P.: Feel-good touch: finding the most pleasant tactile feedback for a mobile touch screen button. In: ICMI '08, pp. 297-304. ACM, New York, NY, USA. http://doi.acm.org/10.1145/1452392.1452453 (2008)
7. Leporini, B., Buzzi, M. C., Buzzi, M.: Interacting with mobile devices via VoiceOver: usability and accessibility issues. In: OzCHI '12. pp. 339-348. ACM, New York, NY, USA, DOI=10.1145/2414536.2414591 (2012)
8. Magnusson, C., Molina, M., Rassmus-Gröhn, K., Szymczak, D.: Pointing for non-visual orientation and navigation. In: NordiCHI 2010, pp. 735-738. ACM (2010)
9. Poppinga, B., Magnusson, C., Pielot, M., Rassmus-Gröhn, K.: TouchOver Map: AudioTactile Exploration of Interactive Maps. In: MobileHCI'11, pp. 545-550 (2011)
10. Qian, H., Kuber, R., Sears, A.: Towards identifying distinguishable tactons for use with mobile devices. In: 11th International ASSETS '09, pp. 257-258. ACM, New York, USA. http://doi.acm.org/10.1145/1639642.1639703
11. Sadato, N., Pascual-Leone, A., Grafmani, J., Ibanez, V, Deiber, MP, Dold, G, Hallet, M.: Activation of the primary visual cortex by Braille reading in blind. Nature 380, pp. 526 - 528, doi:10.1038/380526a0 (1996)
12. Yatani, K., Truong, K. N.: SemFeel: a user interface with semantic tactile feed-back for mobile touch-screen devices. In: 22nd UIST '09, pp. 111-120. ACM, New York, USA http://doi.acm.org/10.1145/1622176.1622198 (2009)

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BibTeX entry
@inbook{oai:it.cnr:prodotti:279401,
	title = {Vibro-tactile enrichment improves blind user interaction with mobile touchscreens},
	author = {Buzzi M.  C. and Buzzi M. and Leporini B. and Paratore M.  T.},
	doi = {10.1007/978-3-642-40483-2_45},
	booktitle = {HUMAN-COMPUTER INTERACTION - INTERACT 2013, PT I, edited by Kotze, P; Marsden, G; Lindgaard, G; Wesson, J; Winckler, M, pp. 641–648, 2013},
	year = {2013}
}