BrailleTap

2,157 views

Published on

Details in:
http://m-accessibility.blogspot.com

Braille Tap is a text-entry method that uses blind users braille knowledge to provide texting abilities. However, in spite of demanding extra hardware, this new interface asks the user to "draw" the desired braille character.

This presentation was performed at DSAI 2007, in Vila Real.

Published in: Technology, Business
0 Comments
2 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
2,157
On SlideShare
0
From Embeds
0
Number of Embeds
40
Actions
Shares
0
Downloads
0
Comments
0
Likes
2
Embeds 0
No embeds

No notes for slide

BrailleTap

  1. 1. Braille Matrix A new text-entry method for the blind Tiago Guerreiro [email_address]
  2. 2. ‘‘ ’’ Never doubt that a small group of committed people can change the world. Indeed it is the only thing that ever has . — Margaret Mead
  3. 3. We have the whole world in our hands.
  4. 4. SMS have had an enormous growth in the last few years.
  5. 5. Mobile devices can do anything.
  6. 6. A common image for me.
  7. 7. What about the Others ?
  8. 8. Some can only see this.
  9. 10. They are too heavy .
  10. 11. They are too big .
  11. 12. They are too expensive ...
  12. 13. And definitely not mobile .
  13. 15. Can speech synthesis replace visual feedback ?
  14. 19. Despair and drop out.
  15. 21. User Observation
  16. 22. Survey users’ habits and capacities User characterization Mobile Device usage User Observation 12 Questionnaires
  17. 23. All dial numbers All have a cell phone 2 users stated difficulties with keypad Not a priority
  18. 24. 60% of the users can send messages … but 80% have a Screen Reader Difficulties with menu navigation and.. ...voice feedback
  19. 25. Half the users use the contact list Memorize the contact position
  20. 26. T h e Goal Mobile Device Control for Blind Individuals
  21. 27. Design Guidelines
  22. 28. G1 communicate through available channels
  23. 29. G2 low cognitive load
  24. 30. G3 focus on acquired capabilities
  25. 31. G4 minimize stress scenarios
  26. 32. G5 adapt the interaction processes to the user
  27. 33. G6 allow and stimulate performance improvement
  28. 34. G7 available, adaptable and affordable
  29. 35. Calls Info Dial Accept Reject
  30. 36. SMS Write Read Send Receive
  31. 37. Contacts Calendar Notebook
  32. 38. Keep it Simple.
  33. 39. Braille Matrix Vowel Navigation
  34. 40. ABCDEFGHIJLMNOPQRSTUVXZ
  35. 41. A B C D E F G H I J L M N O P Q R S T U V X Z
  36. 42. A B C D E F G H I J L M N O P Q R S T U V X Z
  37. 43. A B C D E F G H I J L M N O P Q R S T U V X Z
  38. 44. A B C D E F G H I J L M N O P Q R S T U V X Z A BCD E FGH I JLMN O PQRST U VXZ
  39. 45. We can navigate in any direction.
  40. 46. A BCDEFGHIJLMNOPQRSTUVX Z
  41. 47. A B C D E F G H I J L M N O P Q R S T U V X Z
  42. 49. A B C D E F G H I J L M N O P Q R S T U V X Z
  43. 51. A B C D E F G H I J L M N O P Q R S T U V X Z
  44. 52. No wrong choices. Just shorter paths.
  45. 53. No memorization required.
  46. 55. (Almost) all mobile devices.
  47. 56. Braille Matrix A Q B R
  48. 59. Invert Space Delete Back Menu Go
  49. 60. Al a g e h i Automatic Word Finishing Letter Prediction System Context Dictionaires
  50. 61. NavTap DEMO VÍDEO http://www.youtube.com/watch?v=xbJ_qlFK5YQ
  51. 62. BrailleTap DEMO VÍDEO http://www.youtube.com/watch?v=-WME-zpZ5yc
  52. 63. Event Reception Message Translation Navigation Interaction Warnings How r u ? I m dat great. Wat do u want? C u l8 r
  53. 64. User Evaluation Vowel Navigation Method Raquel and Martin Sain Foundation Excellent learning curve compared with MultiTap Easy to learn
  54. 65. User Evaluation Braille Matrix Method Raquel and Martin Sain Foundation Better than Vowel Navigation for braille experts Requires Braille knowledge
  55. 66. Remarks All the users were satisfied Improved performance All succeeded Before BloNo: 40% weren’t able to write text Wrote text Managed Contacts Navigated menus
  56. 67. The Future Gestural Shortcuts Usability Issues Follow-up studies
  57. 69. Kevin Clarkson Martin Rotovnik
  58. 70. Braille Matrix A new text-entry method for the blind Tiago Guerreiro [email_address] t
  59. 73. Electromyographic Texting Mobile Device Control for Tetraplegics
  60. 74. Blobby Indoor Location and Orientation for the Blind
  61. 75. Mnemonical Body Shortcuts Body Space Gesture Recognition
  62. 76. EZ Control Environmental control for the disabled
  63. 77. CameraPhone Camera based interaction for the disabled
  64. 78. Braille Matrix A new text-entry method for the blind Tiago Guerreiro [email_address] t

×