A trip on public transport or to the local coffee shop might give the
impression that touchscreens are everywhere, but scientists at Autodesk
Research of the University of Alberta and the University of Toronto are
looking to take the ubiquity of touch interfaces to the next level. They
are developing a “Magic Finger” that allows any surface to detect touch
input by shifting the touch technology from the surface to the wearer’s
finger.
The Magic Finger proof-of-concept prototype
Magic Finger doesn't look like much at the moment. In fact, with its LED light it looks a bit like a child’s attempt at an ET
costume prop. It’s a proof-of-concept prototype made up of a little
Velcro ring that straps to the wearer’s fingertip with a trail of wires
leading to a box of electronics. But what it does blurs the line between
the digital and real world.
On the ring there are a pair of optical sensors. One is a low
resolution, high-speed sensor for tracking movement, which wouldn't be
very impressive because it makes the device just a mouse you strap to
your finger. However, Magic Finger adds a new dimension with a
high-resolution camera, which is able to detect 32 different surface
textures with 98 percent accuracy. This allows Magic Finger to recognize
what it touches, such as leather bag or a table or a magazine page, and
with this information turn various surfaces into interfaces for devices
or a way of passing information.
Programmed to the wearer’s personal preferences, the Magic Finger can
make non-digital objects into digital interfaces. An annoying
smartphone ringing can be muted by touching the bag that it’s in. The
wearer can start an app or send a saved text message by touching a logo
on their shirt. Pinch commands and other gestures can be used for tablet
or computer control without actually touching the device, and
information can be passed to a receiving device by touching it.
Another twist on the Magic Finger concept is its ability to detect
“artificial” textures. That is, material textures or patterns that act
like QR codes. With this, the wearer can download information from a
magazine page by touching it or disposable stickers could be made into
remote controls for devices. As a particularly geeky touch, the
fingertip camera can even be used as an impromptu periscope.
Magic Finger's high-resolution camera with image examples at various magnifications
The Autodesk team hopes one day to make the Magic Finger into a
self-contained device with appropriate miniaturization. Once reduced in
size, the device might be attached to a ring or embedded under a
fingernail or in the fingertip itself so that it is invisible and
dormant until required.
The video below is a presentation of Magic Finger by Autodesk Research.
Source: Autodesk research via Dvice
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