Armband adds a twitch to gesture control - tech - 25 February 2013 - New Scientist

And you thought Kinect was cool: well, now there's a gesture control device that looks like a sweatband. It lets you control everything from computers to flying drones just by moving the muscles in your forearm.

The Myo, built by Canadian startup firm Thalmic Labs, based in Kitchener, Ontario, aims to bring gestural interfaces right into the mainstream. Electrodes embedded in the band read electrical activity in a user's muscles as they contract or relax to make gestures with their hand and arm, and transmit it wirelessly to software that interprets the movements into commands.

"We really have this belief that technology can be used to enhance our abilities," says Stephen Lake, co-founder of Thalmic Labs. "This is a way of using natural actions that we've evolved to intuitively control the digital world."

Lake and his team built Myo using electrodes that work without making direct contact with the skin, unlike medical electrodes. The first generation can recognise around 20 gestures, some as subtle as the tap of a finger – and it is programmed to ignore random noise generated by other body movements.

Myo's creators envision it as an easy way to interact with everything from web browsers to video games to small drones. The first generation of the product, is expected to cost $149 and ship later this year. It will come with software that will allow any Windows or Apple Mac machine to recognise the gestures we use on touchscreens – like a vertical swipe to scroll down a page, or a pinch to zoom.

"It's not very often that a new, affordable and convenient interface technology comes along, so I think a lot of programmers are going to want to try it," says Trevor Blackwell, founder of robotics company Umbrella Research and a partner in Y Combinator. This startup incubator programme is based in Mountain View, California and has provided Thalmic Labs with funding in exchange for a 7 per cent stake in the company. "I think so far we've only thought of around 1 per cent of its potential applications."

Thalmic Labs is not the first firm to try making a device that recognises gestures by sensing muscle activity. In 2008, Microsoft created a prototype called MUCI that worked in a similar fashion to Myo, but needed medical electrodes, which are not feasible outside of a laboratory setting.

There are also devices that use cameras to precisely track users' hand motions, but they are either in early stages of development, or not portable. "Maybe this couldn't have been foreseen by early researchers working with cameras, but people don't like having cameras watching them all the time," Blackwell says. "Thalmic solves that problem nicely." Though the first generation of Myo is only just launching, the team is already imagining ways to integrate their rigs with augmented reality devices like the head-mounted display, Google Glass.

"If they combined with Google's Project Glass, I think it would be huge," says computer scientist Shahzad Malik, who co-founded the software company CognoVision of Toronto. "Something like Thalmic's technology is super-useful since you can do interactions in a subtle way, which is important when you're in a public venue."

"We're interested in seeing just how closely we can integrate technology into our daily lives and give people superpowers, if you like," says Lake.

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