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Smartphone app that projects magnified screen to Google Glass developed for low-vision users

Researchers have successfully developed a magnifying smartphone app using Google Glass for the visually impaired users. It uses smartphone’s built-in zoom feature and projects the display to Google Glass.

  • Updated: April 23, 2016 4:15 PM IST
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A team led by an Indian-origin researcher has developed a smartphone app that projects a magnified smartphone screen to provide better visibility to low-vision users. The team from Schepens Eye Research Institute of Massachusetts Eye and Ear/Harvard Medical School designed the app that improves upon the built-in zoom feature of smartphones by projecting the display to Google Glass, which users can navigate using head movements to view a corresponding portion of the magnified screen. Also Read - Top 5 best stock trading apps in India in 2021: Tradingview, investing.com, INDmoney, more

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“Given the current heightened interest in smart glasses such as Microsoft’s Hololens and Epson’s Moverio, it is conceivable to think of a smart glass working independently without requiring a paired mobile device in near future,” said first study author Shrinivas Pundlik. Also Read - Careplex vitals app: How to download and use it to monitor blood oxygen level, pulse and heart rate

“The concept of head-controlled screen navigation can be useful in such glasses even for people who are not visually impaired,” Pundlik wrote in the study published in the journal IEEE Transactions on Neural Systems and Rehabilitation Engineering.

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The Pundlik-led team developed the head-motion application to address the limitations of conventional smartphone screen zooming, which does not provide sufficient context and can be painstaking to navigate.

“When people with low visual acuity zoom in on their smartphones, they see only a small portion of the screen, and it’s difficult for them to navigate around — they do not know whether the current position is in the centre of the screen or in the corner of the screen,” noted senior author Gang Luo.

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“This application transfers the image of smartphone screens to Google Glass and allows users to control the portion of the screen they see by moving their heads to scan, which gives them a very good sense of orientation,” Luo added.

ALSO READ: Google Glass helps cardiologists open blocked heart artery

In an evaluation of their new technology, the researchers observed two groups of research subjects (one group that used the head-motion Google Glass application and the other using the built-in zoom feature on a smartphone) and measured the time it took for them to complete certain tasks. The researchers showed that the head-based navigation method reduced the average trial time compared to conventional manual scrolling by about 28 percent.

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  • Published Date: April 23, 2016 4:10 PM IST
  • Updated Date: April 23, 2016 4:15 PM IST



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