new developments in image and math content accessibility gaeir dietrich, director, high tech center...
Post on 25-Dec-2015
213 Views
Preview:
TRANSCRIPT
New Developments in Image and Math Content Accessibility
Gaeir Dietrich, Director, High Tech Center Training Unit
Sue-Ann Ma, Product Manager, Benetech
November 19, 2014
Page 2
Agenda
● Introductions● Overview of Where Things Stand● Tools for Creating Accessible Content● Keeping Up with Updates● Questions
Page 3
Benetech (the Bookshare folks)
● 325,000 trade titles, textbooks and periodicals
● 320,000 members ● 500 publishing partners● 45 countries● 7 million ebooks downloaded ● http://bookshare.org
Page 4
The DIAGRAM Center
● Digital Image and Graphics Resources for Accessible Materials
● Make it easier, cheaper, and faster to create and use accessible digital images
● Free open source tools globally
● Partnership: Benetech, NCAM at WGBH, US Fund for DAISY
● http://diagramcenter.org
Page 5
High Tech Center Training Unit
● Provides training and resources on Web accessibility, assistive technology and alternate media
● Funded by the California Community Colleges Chancellor’s Office
● Many resources on Web site, including training materials
● Runs listserv devoted to alternate media and AT:Register at: http://www.htctu.net/ > HTCTU Listservers > altmedia
Page 6
Challenge: The Need
30 million Americans with print disabilities
15-20% in U.S. have language-based disability
285 million people with vision impairment worldwide
Page 7
Challenge: Everyone’s a Content Creator
300 millionPotential authors & publishers in the US
$1.76 billionin new edtech financing in 2013
2,500% more expensive to retrofit for accessibility
from print (or print equivalents)
Page 9
New Technology Furthers Accessibility
● Image Descriptions● Tactile Graphic● 3D Objects● Accessible Math● Sonification● Interactives/Widgets
Page 10
Accessible Image Sample Book
● Free online resource with examples of accessible images, in full-page context
● Includes commentary on treatments and sample code
● EPUB3 and DAISY● Sample Book Webinar:
http://diagramcenter.org/webinars.html#aisb
● Sample book: http://diagramcenter.org/samplebook/titlepage.html
Page 11
Sample Image: Heart & Lungs
● Image description: provides basic accessibility to an image
● Tactile Graphic (2D): provides more information about spatial and physical relationships
Page 12
Poet Image Describer Tool
Poet: https://diagram.herokuapp.com/
Page 13
Image Description Hurdles
• Lack subject-matter expertise• Not familiar with image accessibility (subjective)• Variable levels of expertise across describers
Expertise
• Time to find references• Time to get trained up on best practices• Time & cost required to produce content• Cost-benefit: limited user reach when produced adhoc
Time & Cost
• Guidelines for a broad range of image types• Expert-generated descriptions (examples)• User-centric resources (hard to understand)
Lack of Training Content
Page 14
Training Module on Poet
Image Description Training Module: https://diagram.herokuapp.com/training/index
Page 15
When Words Are Not Enough
● Tactile graphics are tactile representations of graphics– Not exact copies; strip out extraneous details and focus on
what is required to understand content
– Needed a brief verbal description is insufficient
● Often needed for…– Charts
– Diagrams and schematics
– Maps
● Subjects most likely– STEM
– Geography
Page 16
Guidance
● DIAGRAM Sample book has excellent examples
● BANA Tactile Graphics Guidelines– http://www.brailleauthority.org/tg/
● Tactile Graphics How-Tos:– http://www.tactilegraphics.org/
Page 19
3D Printing: tactile Graphics Revolution?
● Increasing prevalence of printers + appeal of universal design
● Challenges: access to files, printers, expertise
● Webinar on 3D: http://diagramcenter.org/webinars.html#3D
● Final Report: http://diagramcenter.org/wp-content/uploads/2014/06/3D_FinalReport_SIU_3.docx
Page 20
Our Math Problem:
Semantic math exists, but not all devices support it: http://idpf.org/sites/default/files/file_attach/sanders_edupub_slides.pdf
“Image”
Page 21
Making Math Accessible
MathML Cloud
See
“(y_2-y_1)/(x_2-x_1)=-10”
Hear“start frac y sub 2 minus y sub 1 over x sub 2 minus x sub 1 end frac equals minus 10”
Input:
Outputs:
Page 22
MathML Cloud Project
Download MathMLCloud http://mathml-cloud.cloudapp.net/
Future-proofed (data stored in cloud)
Page 23
Sonification
● Uses non-speech audio to convey information and help perceptualize data
● MathTrax: application created by NASA that provides sonification for mathematical graphs
● http://prime.jsc.nasa.gov/mathtrax/
Page 25
Accessible Interactive Content/Widgets
Accessible Widget: http://
diagramcenter.org/accessible-slider.html
Page 26
What’s Left?
● Expanded Image Description Training Module● End-to-end math solution● Building an accessible content Repository/Registry● More Interactive widgets & content● Adoption of Accessibility Metadata to assist
discovery● And MORE!
Page 27
Top Tips for Creating Accessible EPUB 3 Files
● Top Tips: http://diagramcenter.org/54-9-tips-for-creating-accessible-epub-3-files.html
● EPUB 3 Accessibility Guidelines: http://www.idpf.org/accessibility/guidelines/
● “EPUB 3 Best Practices,” Matt Garrish (O’Reilly) Accessibility Forum: http://www.idpf.org/forums
Page 28
Keeping Up with Updates
● Alt Media List Serve: www.htctu.net ● Born Accessible: Bornaccessible.org ● DIAGRAM Center:
– Website: diagramcenter.org
– Webinars: http://www.diagramcenter.org/standards-and-practices/training.html
– Blog: http://blog.diagramcenter.org/
● MathML Cloud: Mathmlcloud.org● Poet: https://diagram.herokuapp.com/
top related