A Support System for Graphics for Visually Impaired People

Abstract

As the Internet plays an important role in today’s society, graphics is widely used to present, convey and communicate information in many different areas. Complex information is often easier to understand and analyze by graphics. Even though graphics plays an important role, accessibility support is very limited for web graphics. Web graphics accessibility is not only for people with disabilities, but also for people who want to get and use information in ways different from the ones originally intended.\nOne of the problems regarding graphics for blind people is that we have few data on how a blind person draws or how he/she receives graphical information. Based on Katz’s pupils’ research, one concludes that blind people can draw in outline and that they have a good sense of three-dimensional shape and space.\nIn this thesis, I propose and develop a system, which can serve as a tool to be used by researchers investigating these and related issues. Our support system is built to collect the drawings from visually impaired people by finger movement on Braille devices or touch devices, such as tablets. When the drawing data is collected, the system will automatically generate the graphical XML data, which are easily accessed by applications and web services. The graphical XML data are stored locally or remotely. Compared to other support systems, our system is the first automatic system to provide web services to collect and access such data. The system also has the capability to integrate into cloud computing so that people can use the system anywhere to collect and access the data.

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