1 / 17

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.

yadid
Télécharger la présentation

Tactile Graphics Research

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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

More Related