Designing Guides for Blind People H. Nicolau, T. Guerreiro, J. Jorge {hman, tjvg, jaj}@vimmi.inesc-id.pt DSAI’09  4  June ...
Autonomy
What about the  others ?
 
Mobility Obstacle Avoidance
Orientation
Braille Signs Tactile Maps
Trekker Sendero GPS
They are too  Heavy
They are too  Big
They are too  Expensive
 
Coughlan and Manduchi, 2007 Rajamaki et al., 2007 Turunen et al., 2007 Bohonos et al., 2007 Willis and Helal, 2005
 
The Main Goal Provide both Natural and Familiar Feedback
User Centered Design
Over  45 years  old Low  educational background Legally  blind Screen reader  users
All  place and reveive calls All  have a cell phone Daily  usage Difficulties  in text-entry
Need  help  in public buildings
How to  guide  a blind user?
Exploratory Experiment Analyze users’  behaviors Identify the most important  information Analyze users’  mental maps  evo...
 
Reference Points
Trial-and-Error
Explore new routes
Incomplete  mental map
When they are  lost  …
Obstacles are not crucial
Less   is Better !
Group Meeting
1 (the best) story
Action
Direction
Side
Distance  Time
Object
Action Direction ?   ([ Time Side Distance ]*  Object )? Instructions Regular Expression Action Object Enter the door Acti...
Evaluation Six blind users HTC TyTn
Destination
Task Times  (in seconds)
Thermal Map
User Satisfaction
User  centered design Analyze blind users’  behaviors Familiar  feedback Easily  understandable  instructions High  user s...
Future Work Localization system New scenarios Explore new modalities
Designing Guides  for Blind People H. Nicolau, T. Guerreiro, J. Jorge {hman, tjvg, jaj}@vimmi.inesc-id.pt
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Blobby DSAI

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Blobby DSAI

  1. 1. Designing Guides for Blind People H. Nicolau, T. Guerreiro, J. Jorge {hman, tjvg, jaj}@vimmi.inesc-id.pt DSAI’09 4 June 2009
  2. 2. Autonomy
  3. 3. What about the others ?
  4. 5. Mobility Obstacle Avoidance
  5. 6. Orientation
  6. 7. Braille Signs Tactile Maps
  7. 8. Trekker Sendero GPS
  8. 9. They are too Heavy
  9. 10. They are too Big
  10. 11. They are too Expensive
  11. 13. Coughlan and Manduchi, 2007 Rajamaki et al., 2007 Turunen et al., 2007 Bohonos et al., 2007 Willis and Helal, 2005
  12. 15. The Main Goal Provide both Natural and Familiar Feedback
  13. 16. User Centered Design
  14. 17. Over 45 years old Low educational background Legally blind Screen reader users
  15. 18. All place and reveive calls All have a cell phone Daily usage Difficulties in text-entry
  16. 19. Need help in public buildings
  17. 20. How to guide a blind user?
  18. 21. Exploratory Experiment Analyze users’ behaviors Identify the most important information Analyze users’ mental maps evolution Study how they verbalize a route
  19. 23. Reference Points
  20. 24. Trial-and-Error
  21. 25. Explore new routes
  22. 26. Incomplete mental map
  23. 27. When they are lost …
  24. 28. Obstacles are not crucial
  25. 29. Less is Better !
  26. 30. Group Meeting
  27. 31. 1 (the best) story
  28. 32. Action
  29. 33. Direction
  30. 34. Side
  31. 35. Distance Time
  32. 36. Object
  33. 37. Action Direction ? ([ Time Side Distance ]* Object )? Instructions Regular Expression Action Object Enter the door Action Direction Turn right Action Direction Time Object Go straight ahead until you reach the door Action Direction Side Time Object Go straight ahead, by the right side, until you reach the pillar
  34. 38. Evaluation Six blind users HTC TyTn
  35. 39. Destination
  36. 40. Task Times (in seconds)
  37. 41. Thermal Map
  38. 42. User Satisfaction
  39. 43. User centered design Analyze blind users’ behaviors Familiar feedback Easily understandable instructions High user satisfaction Conclusions
  40. 44. Future Work Localization system New scenarios Explore new modalities
  41. 45. Designing Guides for Blind People H. Nicolau, T. Guerreiro, J. Jorge {hman, tjvg, jaj}@vimmi.inesc-id.pt

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