Tactile Graphics Revised: The Novel BrailleDis 9000 Pin-Matrix Device with Multitouch Input

  • Thorsten Völkel
  • Gerhard Weber
  • Ulrich Baumann
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5105)


We describe the novel BrailleDis 9000 pin-matrix device. The refreshable device allows to present tactile graphics on a matrix of 60 times 120 pins. The pin-matrix device is made up of a newly developed type of vertical Braille module allowing for a compact assembly of all necessary components. Additionally, the pin-matrix device is touch sensitive and capable of detecting multiple points of contact. Using multitouch features, novel multimodal interaction cycles can be realized with the Braille display, such as a bi-manual sweep.


Tactile graphics visually impaired assistive technology pin-matrix device 


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  1. 1.
    Agarwal, A., Izadi, S., Chandraker, M., Blake, A.: High Precision Multi-touch Sensing on Surfaces using Overhead Cameras. In: Proc. Tabletop 2007, pp. 197–200. IEEE Press, New York (2007)Google Scholar
  2. 2.
    BMBF, Bundesministerium für Bildung und Forschung: BrailleDis Project Presentation (2001),
  3. 3.
    Edwards, A.D.N., Mitsopoulos, E.: A Principled Methodology for the Specification and Design of Nonvisual Widgets. ACM Transactions on Applied Perception 2(4), 442–449 (2006)CrossRefGoogle Scholar
  4. 4.
    Ferres, L., Verkhogliad, P., Kindgaard, G., Boucher, L., Chretien, A., Lachance, M.: Improving Accessibility to Statistical Graphs: The iGraph-Lite System. In: ASSETS 2007: Proc. of the ACM Conference on Accessibility and Computers, pp. 67–74. ACM Press, New York (2007)CrossRefGoogle Scholar
  5. 5.
    Heller, M.A.: The psychology of touch. Lawrence Erlbaum, Mahwah (1990)Google Scholar
  6. 6.
    Coutaz, J.: Multimedia and Multimodal User Interfaces: A Taxonomy for Software Engineering Research Issues. In: Proc. of the Second East-West HCI conference, pp. 229–240. J. Gornostaev. St Petersburg (1992)Google Scholar
  7. 7.
    Kamel, H.M., Landay, J.A.: A Study of Blind Drawing Practice: Creating Graphical Information Without the Visual Channel. In: ASSETS 2000: Proc. of the ACM Conference on Accessibility and Computers, pp. 34–41. ACM Press, New York (2000)Google Scholar
  8. 8.
    Kipke, S.: Sensitive Braille displays with ATC technology (Active Tactile Control). In: Proc. CSUN 2006 (2006)Google Scholar
  9. 9.
    Kraus, M., Schmidt, M., Völkel, T., Weber, G.: An Off-Screen Model for Tactile Graphical User Interfaces. In: Miesenberger, K., Klaus, J., Karshmer, A., Zagler, W. (eds.) Proc. ICCHP 2008. LNCS. Springer, Heidelberg (2008)Google Scholar
  10. 10.
    Petrie, H., Morley, S., Weber, G.: Tactile-Based Direct Manipulation in GUIs for Blind Users. In: Proc. CHI 1995: Conference companion on Human factors in computing systems, pp. 428–429. ACM Press, New York (1995)CrossRefGoogle Scholar
  11. 11.
    Power, C.: Voronoi diagrams, vectors and the visually impaired. In: Proc. CHI 2006: Conference companion on Human factors in computing systems, pp. 1247–1252. ACM Press, New York (2006)CrossRefGoogle Scholar
  12. 12.
    Rotard, M., Ertl, T.: Tactile Access to Scalable Vector Graphics for People With Visual Impairment. In: Proc. of the SVG Open Conference 2004 (2004),
  13. 13.
    Rotard, M., Bosse, K., Schweikhardt, W., Ertl, T.: Access to Mathematical Expressions in MathML for the Blind. In: Proc. of the HCI International Conference, pp. 1325–1329 (2004)Google Scholar
  14. 14.
    Rotard, M., Knödler, M., Ertl, M.: A tactile web browser for the visually disabled. In: Proc. of the 16th Conference in Hypertext and Hypermedia, pp. 15–22. ACM Press, New York (2005)CrossRefGoogle Scholar
  15. 15.
    Schweikhardt, W.: Representing videotex-pages to the blind. In: Proc. of the Third Annual Workshop on Computers and the Handicapped, pp. 23–29. IEEE Press, Los Alamitos (1984)Google Scholar
  16. 16.
    Vidal-Verdú, F., Hafez, M.: Graphic Tactile Displays for Visually-Impaired People. IEEE Transactions in Neural Systems and Rehabilitation Engineering 15(4), 119–130 (2007)CrossRefGoogle Scholar
  17. 17.
    Wall, S.A., Brewster, S.A.: Tactiles: Multimodal Pie Charts for Visually Impaired Users. In: Proc. of the NordiCHI 2006: Changing Roles, pp. 9–18. ACM Press, New York (2006)CrossRefGoogle Scholar
  18. 18.
    Wall, S.A., Brewster, S.A.: Sensory substitution using tactile pin arrays: Human factors, technology and applications. Signal Processing 86(12), 3674–3695 (2006)CrossRefGoogle Scholar
  19. 19.
    Weber, G.: Gestures as a Means for the Blind to Interact with a Computer. In: Proceedings of the INTERAC 1987, pp. 593–595. North Holland, Amsterdam (1987)Google Scholar
  20. 20.
    Weber, G.: Reading and Pointing – Modes of Interaction for Blind Users. In: Ritter, G.X. (ed.) Proc. of the Conference on Information Processing, pp. 535–540. Elsevier Science Publishers B.V, Amsterdam (1989)Google Scholar
  21. 21.
    Weber, G., Wetzel, P.: Finger – Formalized Interaction for Gesture Recognition. SIGCHI Bulletin 21(1), 96–97 (1989)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Thorsten Völkel
    • 1
  • Gerhard Weber
    • 1
  • Ulrich Baumann
    • 2
  1. 1.Computer Interaction Research GroupTechnical University of DresdenDresdenGermany
  2. 2.Metec AG Hasenbergstraße 31Stuttgart 

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