 |
FingerIO Active Sonar Smartphone Finger Tracking
FingerIO cleverly uses your smartphone's own speaker to emit an inaudible ultrasonic wave. That signal then bounces off your finger, and the “echoes” are recorded by your phone's microphones and are used to calculate the finger’s location in space. FingerIO was developed by University of Washington computer scientists and electrical engineers,
(FingerIO active sonar finger tracking video)
Using sound waves to track finger motion offers several advantages over cameras — which don’t work without line-of-sight or when the device is hidden by fabric or another obstructions — and other technologies like radar that require both custom sensor hardware and greater computing power, said senior author and UW assistant professor of computer science and engineering Shyam Gollakota.But standard sonar echoes are weak and typically not accurate enough to track finger motion at high resolution. Errors of a few centimeters would make it impossible to differentiate between writing individual letters or subtle hand gestures.
So the UW researchers used “Orthogonal Frequency Division Multiplexing” (used in cellular telecommunications and WiFi), allowing for tracking phase changes in the echoes and correcting for any errors in the finger location.
Fans of beloved science fiction author Douglas Adams recall the gesture-based interface used in The Hitchhiker's Guide to the Galaxy from a generation earlier, and can't wait to use this idea on their smartphones:
A loud clatter of gunk music flooded through the Heart of Gold cabin as Zaphod searched the sub-etha radio wave bands for news of himself. The machine was rather difficult to operate. For years radios had been operated by means of pressing buttons and turning dials; then as the technology became more sophisticated the controls were made touch-sensitive--you merely had to brush the panels with your fingers; now all you had to do was wave your hand in the general direction of the components and hope. It saved a lot of muscular expenditure, of course, but meant that you had to sit infuriatingly still if you wanted to keep listening to the same program.Zaphod waved a hand and the channel switched again.
Update 15-Jul-2016: Here's an earlier reference to the idea of a gesture interface from Samuel R. Delany's Babel-17 (1968):
Rydra shook her head. She passed her hand before the filing crystal. In the concaved screen at the base, words flashed. She stilled her fingers. "Navigator-Two. . . ." She turned her hand. "Navigator-One. . . ." She paused and ran her hand in a different direction.". . . male, male, male, female...Rydra watched, her hand drifting through centimeters over the crystal's face. The names on the screen flashed back and forth.
Rydra's hand came down on the crystal face, and the name glowed on the screen.
(Read more about the filing crystal)
End update.
Via KurzweilAI.
Scroll down for more stories in the same category. (Story submitted 3/18/2016)
Follow this kind of news @Technovelgy.| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
Would
you like to contribute a story tip?
It's easy:
Get the URL of the story, and the related sf author, and add
it here.
Comment/Join discussion ( 0 )
Related News Stories - (" Engineering ")
Smellicopter Combines Live Moth Antenna With Mechanical Drone
'The organic tissue is inserted in the master tank and then sealed.' - Philip K. Dick, 1955.
DARPA's Virtual Caves Explored By Virtual Robots
'If there's anything in here worth looking at, these pups'll find it.' - Ridley Scott, 2012.
Samsung Gets Transparent Smartphone Patent
The Transparency of Things to Come
Jet-Powered Flying Suits Tested By Navy
'With his motor in operation, he moves like a diver, head foremost...' - Philip Frances Nowlan, 1928.
Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.
Current News
DALL-E Makes Creative Images From Text
Okay, sf fans. If you could have some art created from a science fiction sentence, what sentence would you pick?
BladeBUG Robots Clean Massive Wind Turbine Blades
'There were the cleaners, with large padded feet, who were apparently polishing their way the whole length...'
Looms To Manually Weave Lunar Rover Wheels
It's fascinating to me how the Apollo program forced people to think outside their usual boxes.
IceBot Antarctic (Planetary?) Robotic Explorers Made Of Ice
'Some will combine in place to form more complicated structures, like excavators or centipedes.'
Glad 2020 Is Over
Maybe you missed one of these?
PEDOT Polymer Could Enhance Brain-Machine Interfaces
'the hair-fine wire going deep into Owen's brain, down into the pleasure center.'
Study: Robots Encourage Humans To Take Risks
Not exactly Three Laws compliant.
Kinetic Buildings And Psychotropic Houses
'There was a dim whirring, and the spheres tipped and began to rotate...'
Jupe Urban Escape Pods Have Tesla, SpaceX Roots
'The houses are prefabricated units... and they sell at the flat rate of five hundred dollars a room — set up.'
Best Robot Dance Video Of 2020
'I can Mashed Potato... I can do the Twist.'
Vertical Farm In Singapore's Output Is 1.5 Tons Per Day
'A towering eighty-story structure like the office "In-and-Out" baskets stacked up to the sky.'
3D Printed 'Blisk' Manufactured In Orbit
'It can be mass-produced only in the orbiting factories...'
Comercial Airlock 'Bishop' Now On ISS
'They put the bones and the glass can that had contained the soup into the double-doored partition or vestibule...'
Space Station Could Use Some Martian Sawgrass
'What better purifying machine is there than a plot of grass?'
ARTUu AI Copilot For USAF
'A series of short beep's and chirps issued from his speaker...'
Smellicopter Combines Live Moth Antenna With Mechanical Drone
'The organic tissue is inserted in the master tank and then sealed.'
