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Wednesday, 20 March 2013

Air writing gloves: Write your words on air!!


As people of the 21st century, we’re constantly typing, texting and tapping on the 15 different technological devices we all now own.
Screens are getting bigger, buttons are getting smaller and nearly every device utilizes sensitive touch-screen technology.
It’s no wonder why websites like “Damn You Auto Correct” and “F You, Auto Correct” have a plethora of new, hilarious conversations daily.
This is just one reason why computer scientists at the Karlsruhe Institute of Technology in Germany have created an alternative to texting. They hope this new method—which was reported in Discovery News on March 4—will minimize typing errors and make communication more convenient.



What are air writing gloves?

The new method is called “air-writing” and it is exactly what it sounds like— writing letters in the air.
When the wearer of the gloves draws letters in the air with their hand, the system can identify which letters are being drawn. Those letters are converted into digital text, which could then be input into an email, text message, or any other type of mobile app, 'Gizmag' reported.

The Technology:

The glove developed by a team of computer scientists at Germany's Karlsruhe Institute of Technology is equipped with accelerometers and gyroscopes that detect hand movements.

The system then identifies which letters are being drawn and converts them into digital text, which can then be wirelessly entered into an email, text message or other mobile apps.

Once it is determined that letters are indeed being drawn, the computer then sets about identifying the individual letters.

The programme incorporates statistical models of the unique signal patterns for every letter in the alphabet, and can account for differences in individual writing styles.

It can also recognize approximately 8,000 words, along with complete sentences.
According to the original report,  Amma’s model currently has an 11 percent error rate. However, once the system learns to recognize the user’s personal writing style that number drops to 3 percent.

Future Work:

Christoph Amma, who developed the technology, now hopes to miniaturize the sensors to the point that the glove could be replaced by something less impractical to everyday use, such as a wrist band.

Amma also envisions the hardware being incorporated into a Smartphone - in that way, a single hand-held device like a cellphone could be used both to detect hand movements, and to process the data.

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