New gadget to help blind read graphs

Visually impaired people can now read more than just words, such as graphs and graphics, thanks to a new affordable digital reading system.
Opening up new career paths and educational opportunities for people with vision impairment, the system combines a number of pattern recognition technologies into a single platform and, for the first time, allows mathematics and graphical material to be extracted and described without sighted intervention.
Senior Lecturer Dr Iain Murray and PhD student Azadeh Nazemi of Curtin University's Department of Electrical and Computing Engineering developed the device to handle the extraordinary number of complex issues faced by the vision impaired when needing to read graphics, graphs, bills, bank statements and more.

"People who are blind are often blocked from certain career paths and educational opportunities where graphs or graphics play a strong role," Murray said.
"We hope this device will open up new opportunities for people with vision impairment - it's a matter of providing more independence, and not having to rely on sighted assistance to be able to read graphical and mathematical material," said Murray.
The device works by using pattern recognition technology and other methods on any document to identify images, graphs, maths or text. From here it is then converted to audio format with navigation markup.

Murray said the system runs on very inexpensive platforms, with an expected production cost as low as USD 100 per device, allowing it to be affordable to many people around the world and hopefully make a difference in third world countries.

He said previously there have been many methods to convert graphical material but all are very labour intensive and generally not easily transferable to other users.
"Our system is easily operated by people of all ages and abilities and it is open source, meaning anyone with the skill can use and modify the software to suit their application," Murray said.
The player has built-in user instructions and a speech engine that converts to more than 120 different languages.