Feeds

Microsoft digs Doppler to effect gesture detection

Sound thinking

The Essential Guide to IT Transformation

Microsoft Research took motion detection to new levels this week when it unveiled a new gesture recognition system for laptops.

Called SoundWave, the rig utilises the Doppler effect, picking up subtle changes in sound wave frequencies to calculate how a user's hand is moving in front of a laptop. It's said to work even in noisy environments.

SoundWave works by emitting an inaudible tone between 18 and 22kHz. As these waves reflect off an object, the frequency is changed slightly. The changes are detected by the computer's array of microphones.

SoundWave

Combined with the changes in a sound wave's amplitude, direction, speed and time variation, the system determines which gesture is being made.

While it is unlikely to have much effect from a distance - we'll keep using Kinect for that - SoundWave could come in handy for close-up computer gesturing.

Check out the demonstration video:

Build a business case: developing custom apps

More from The Register

next story
iPad? More like iFAD: We reveal why Apple fell into IBM's arms
But never fear fanbois, you're still lapping up iPhones, Macs
Sonos AXES support for Apple's iOS4 and 5
Want to use your iThing? You can't - it's too old
You didn't get the MeMO? Asus Pad 7 Android tab is ... not bad
Really, er, stands out among cheapie 7-inchers
Apple winks at parents: C'mon, get your kid a tweaked Macbook Pro
Cheapest models given new processors, more RAM
4K video on terrestrial TV? Not if the WRC shares frequencies to mobiles
Have your say with Ofcom now, before Freeview becomes Feeview
Leaked Windows Phone 8.1 Update specs tease details of Nokia's next mobes
New screen sizes, dual SIMs, voice over LTE, and more
YES, iPhones ARE getting slower with each new release of iOS
Old hardware doesn't get any faster with new software
prev story

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
The Essential Guide to IT Transformation
ServiceNow discusses three IT transformations that can help CIO's automate IT services to transform IT and the enterprise.
Maximize storage efficiency across the enterprise
The HP StoreOnce backup solution offers highly flexible, centrally managed, and highly efficient data protection for any enterprise.