Making Visual Maps Accessible to the Blind

Visual maps deliver content in a simple and effective way. They can be useful for various purposes in areas such as street guidance, surrounding information, and education. However, sightless persons are unable to explore visual maps and risk being cut off from several multimedia Web applications. In this paper, starting from accessibility issues of map-based applications, we discuss possible interaction modalities and devices to use for truly achieving usage perspectives desired by blind people. New ways to interact with a mobile device (such as gestures or touch commands) and possible solutions for making a map truly effective are investigated. In order to better explain the issues and needs of blind users accessing visual maps, an example of an interaction is presented.

[1]  Baoxin Li,et al.  On presenting audio-tactile maps to visually impaired users for getting directions , 2010, CHI Extended Abstracts.

[2]  Stephen A. Brewster,et al.  Investigating touchscreen accessibility for people with visual impairments , 2008, NordiCHI.

[3]  Konrad Tollmar,et al.  Exploring future challenges for haptic, audio and visual interfaces for mobile maps and location based services , 2009, LOCWEB '09.

[4]  Stephen A. Brewster,et al.  Artex: artificial textures from every-day surfaces for touchscreens , 2010, CHI EA '10.

[5]  Wolfgang L. Zagler,et al.  Computers Helping People with Special Needs, 12th International Conference, ICCHP 2010, Vienna, Austria, July 14-16, 2010, Proceedings, Part II , 2010, ICCHP.

[6]  Christopher Habel,et al.  Verbal Assistance in Tactile-Map Explorations: A Case for Visual Representations and Reasoning , 2010, Visual Representations and Reasoning.

[7]  Gerhard Weber,et al.  A Graphical Tactile Screen-Explorer , 2010, ICCHP.

[8]  Armin B. Wagner Collaboratively Generated Content on the Audio-Tactile Map , 2010, ICCHP.

[9]  Gerhard Weber,et al.  Audio-Haptic Browser for a Geographical Information System , 2010, ICCHP.

[10]  Stephen A. Brewster,et al.  Eyes-free overviews for mobile map applications , 2009, Mobile HCI.

[11]  Matthijs L. Noordzij,et al.  Atlas.txt: exploring linguistic grounding techniques for communicating spatial information to blind users , 2010, Universal Access in the Information Society.

[12]  Gerhard Weber,et al.  Tactile Paper Prototyping with Blind Subjects , 2009, HAID.

[13]  Baoxin Li,et al.  Instant tactile-audio map: enabling access to digital maps for people with visual impairment , 2009, Assets '09.

[14]  Jaime Sánchez,et al.  Mobile Audio Navigation Interfaces for the Blind , 2009, HCI.

[15]  Constantine Stephanidis Intelligent and ubiquitous interaction environments , 2009 .

[16]  Tetsuya Watanabe,et al.  Tactile Map Automated Creation System to Enhance the Mobility of Blind Persons - Its Design Concept and Evaluation through Experiment , 2010, ICCHP.

[17]  Anke M. Brock,et al.  Usage of multimodal maps for blind people: why and how , 2010, ITS '10.

[18]  Thomas Ertl,et al.  Making Digital Maps Accessible Using Vibrations , 2010, ICCHP.

[19]  Deborah Gilden,et al.  Talking TMAP: Automated generation of audio-tactile maps using Smith-Kettlewell's TMAP software , 2006 .

[20]  Barbara Leporini,et al.  Vibrotactile feedback to aid blind users of mobile guides , 2009, J. Vis. Lang. Comput..

[21]  Carl Gutwin,et al.  Wedge: clutter-free visualization of off-screen locations , 2008, CHI.

[22]  Constantine Stephanidis,et al.  Universal Access in Human-Computer Interaction , 2011 .

[23]  Giovanni Cioni,et al.  Massage Accelerates Brain Development and the Maturation of Visual Function , 2009, The Journal of Neuroscience.

[24]  Rolf Nordahl,et al.  Haptic and Audio Interaction Design , 2009, Lecture Notes in Computer Science.