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Tactile Graphics Research

Tactile Graphics Research. Josh Scotland. Terminology. Braille: Language read tactually with characters containing 6 dots Tactile Graphics: Images in a tactile form that are used by low vision students. Accessibility: Amount to which a product is available to the population. Braille Alphabet.

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Tactile Graphics Research

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  1. Tactile Graphics Research Josh Scotland

  2. Terminology • Braille: Language read tactually with characters containing 6 dots • Tactile Graphics: Images in a tactile form that are used by low vision students • Accessibility: Amount to which a product is available to the population

  3. Braille Alphabet

  4. Tactile Graphics

  5. Translation Process • Scan the image • TGA text extraction • Optical character recognition • Braille Translation • Adobe Illustrator • Embossing Tiger Embosser

  6. The TGA

  7. Translation Process

  8. Pros / Cons • Cons • Lower quality • Pros • Quick • Customizable • Transportable • Much cheaper!

  9. Summer ‘09 Research Audio Augmentation of Tactile Images for Greater Accessibility

  10. Issue #1 • Braille character sizes • Limitation of information • 12 vs. 29 pt fonts

  11. Size of Braille

  12. Size of Braille

  13. Issue #2 • “There are approximately 57,696 legally blind children in the U.S. Out of those school-age children, only 10 percent use Braille as their primary reading medium.”1 • 1 American Printing House for the Blind (2008), "Facts and Figures on Americans with Vision Loss", American Foundation for the Blind, http://www.afb.org/Section.asp?SectionID=15&DocumentID=4398, 2009-04-16

  14. Solution: Audio • Having audio in conjunction with tactile graphics increases accessibility by solving these two issues: • Limitation of information: Less clutter, more info • Braille illiteracy: Accessible to the 90% that can’t read Braille

  15. Digital Pen Technology • Use digital pens to play audio with tactile graphics • Digital paper has thousands of small dots • Pen has infrared camera that takes snapshots

  16. Goal

  17. Acknowledgments • Richard Ladner, Mentor, CSE • Dan Comden, Adaptive Technology Lab • Jeffery Bigham, University of Rochester, CSE • ChandrikaJayant, Ph. D., CSE • Sangyun Hahn, Ph. D., CSE • Washington NASA Space Grant • National Federation of the Blind

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