Researchers propose à la carte internet services, overhaul for web infrastructure

A quintet of researchers funded by the National Science Foundation have envisioned a new internet architecture, one where features could be purchased à la carte. The proposed framework would allow users to fine tune their experience by choosing from a variety of connection services. Let's say, for example, that a customer's connection is fine for browsing the web, but it doesn't pass muster for streaming content -- a service dedicated to video delivery could be added to close the gap. "Ultimately, this should make the internet more flexible and efficient, and will drive innovation among service providers to cater to user needs," report co-author Rudra Dutta told The Abstract. A piecemeal next-gen web is no easy feat, however, as it would require revamping the web's infrastructure with new protocols for choosing particular features, completing payments and monitoring network performance. The group's rough blueprint will be presented at a conference next week, but you can thumb through their short paper at the source.

Filed under: Internet

Researchers propose à la carte internet services, overhaul for web infrastructure originally appeared on Engadget on Sat, 11 Aug 2012 07:11:00 EDT. Please see our terms for use of feeds.

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Disney researchers can now digitally shave your face, clone it for animatronics (video)

The minds at Disney Research aren't only interested in tracking your face -- they want to map, shave and clone it, too. Through a pair of research projects, Walt's proteges have managed to create systems for not only mapping, digitally reconstructing and removing facial hair, but also for creating lifelike synthetic replicas of human faces for use in animatronics. Let's start with the beards, shall we? Facial hair is a big part of a person's physical identity, a quick shave can render a close friend unrecognizable -- but modern face-capture systems aren't really optimized for the stuff. Disney researchers attempted to address that issue by creating an algorithm that detects facial hair, reconstructs it in 3D and uses the information it gathers to suss out the shape of the skin underneath it. This produces a reconstruction of not only the skin episurface, but also of the subject's individual hairs, meaning the final product can be viewed with or without a clean shave.

Another Disney team is also taking a careful look at the human face, but is working on more tangible reconstructions -- specifically for use on audio-animatronic robots. The team behind the Physical Face Cloning project hope to automate part of creating animatronics to speed up the task of replicating a human face for future Disney robots. This complicated process involves capturing a subjects face under a variety of conditions and using that data to optimize a composition of synthetic skin to best match the original. Fully bearded animatronic clones are still a ways off, of course, but isn't it comforting to know that Disney could one day replace you accurately replicate your visage in Walt Disney World for posterity? Dive into the specifics of the research at the source links below, or read on for a video summary of the basics.

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Filed under: Misc. Gadgets, Robots, Software

Disney researchers can now digitally shave your face, clone it for animatronics (video) originally appeared on Engadget on Sun, 12 Aug 2012 03:15:00 EDT. Please see our terms for use of feeds.

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Researchers create Meshworm robot, beat it up (video)

We've seen a number of options for controlling real worms, but never a worm robot, until now. Enter Meshworm, the latest creation from researchers at MIT, Harvard University and Seoul National University. The bot is made from "artificial muscle" composed of a flexible mesh tube segmented by loops of nickel / titanium wire. The wire contracts and squeezes the tube when heated by a flowing current, but cut the power and it returns to its original shape, creating propulsion in a similar way to its living kin. Taking traditional moving parts out of the equation also makes it pretty hardy, as proven by extensive testing (read: hitting it with a hammer). DARPA is known for getting its fingers in all sorts of strange pies, and it also supported this project. We can't see it being the fastest way of gathering intel, but the potential medical applications, such as next-gen endoscopes, sound plausible enough. Full impact tests in the video after the break.

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Filed under: Robots, Science

Researchers create Meshworm robot, beat it up (video) originally appeared on Engadget on Fri, 10 Aug 2012 06:25:00 EDT. Please see our terms for use of feeds.

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Researchers use bioimpedance as a biometric, let health monitor devices know who you are

Wouldn't it be great if fitness and medical gadgets automatically knew who was wearing them? Researchers from Dartmouth have come up with a new way to provide health monitors just such an ability using a tiny electric current and a bioimpedance sensor. You see, each person's body provides a different amount of opposition to electrical current, so bioimpedance can be a unique biometric identifier. The researchers' idea is to create a bracelet that uses bioimpedance readings to recognize its wearer in a secure, unobtrusive manner and communicate that identity to other wearable devices.

Using such a bracelet, "the devices discover each other's presence, recognize that they are on the same body (and transitively learn from the wrist device whose body), develop shared secrets from which to derive encryption keys, and establish reliable and secure communications." As opposed to other biometrics or password authentication, bioimpedance readings can be taken passively, which is much more appealing than remembering passcodes or scanning fingerprints and retinas. For now, the researchers have created an eight-electrode proof-of-concept bracelet, but its accuracy leaves something to be desired -- it correctly identifies its wearer only 80 to 90 percent of the time, whereas fingerprint recognition has a failure rate of less than 1 in 1,000. So, we're a ways off from bioimpedance-based security, but research is ongoing, and you can learn all about it at the source below.

Filed under: Wearables, Science

Researchers use bioimpedance as a biometric, let health monitor devices know who you are originally appeared on Engadget on Thu, 09 Aug 2012 20:29:00 EDT. Please see our terms for use of feeds.

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Carnegie Mellon researchers develop robot that takes inventory, helps you find aisle four

Fed up with wandering through supermarket aisles in an effort to cross that last item off your shopping list? Researchers at Carnegie Mellon University's Intel Science and Technology Center in Embedded Computing have developed a robot that could ease your pain and help store owners keep items in stock. Dubbed AndyVision, the bot is equipped with a Kinect sensor, image processing and machine learning algorithms, 2D and 3D images of products and a floor plan of the shop in question. As the mechanized worker roams around, it determines if items are low or out of stock and if they've been incorrectly shelved. Employees then receive the data on iPads and a public display updates an interactive map with product information for shoppers to peruse. The automaton is currently meandering through CMU's campus store, but it's expected to wheel out to a few local retailers for testing sometime next year. Head past the break to catch a video of the automated inventory clerk at work.

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Carnegie Mellon researchers develop robot that takes inventory, helps you find aisle four originally appeared on Engadget on Sat, 30 Jun 2012 19:53:00 EDT. Please see our terms for use of feeds.

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Solid state solar panels are more affordable, say researchers, don't leak

Researchers at Northwestern University have found one way to stop a leak: get rid of the liquid. A new variation on the Grätzel solar cell replaces a short-lived organic dye with a solid alternative. The molecular dye the solid substance replaces was corrosive, at risk of leaking and only lasted about 18-months -- by replacing it, researchers plan to pave the way for a more affordable (and less toxic) alternative. Northwestern's new design flaunts a 10.2-percent conversion efficiency, the highest ever recorded in a solid-state solar cell of its type -- but that's still only half of what traditional sun collectors can do. Researchers hope to improve conversion in the long run, but expect that the cost reduction alone will be enough to get the party going. It may not be the greenest solar technology we've ever seen, but who are we to judge?

Solid state solar panels are more affordable, say researchers, don't leak originally appeared on Engadget on Sun, 27 May 2012 12:42:00 EDT. Please see our terms for use of feeds.

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Solid state solar panels are more affordable, say researchers, don't leak

Researchers at Northwestern University have found one way to stop a leak: get rid of the liquid. A new variation on the Grätzel solar cell replaces a short-lived organic dye with a solid alternative. The molecular dye the solid substance replaces was corrosive, at risk of leaking and only lasted about 18-months -- by replacing it, researchers plan to pave the way for a more affordable (and less toxic) alternative. Northwestern's new design flaunts a 10.2-percent conversion efficiency, the highest ever recorded in a solid-state solar cell of its type -- but that's still only half of what traditional sun collectors can do. Researchers hope to improve conversion in the long run, but expect that the cost reduction alone will be enough to get the party going. It may not be the greenest solar technology we've ever seen, but who are we to judge?

Solid state solar panels are more affordable, say researchers, don't leak originally appeared on Engadget on Sun, 27 May 2012 12:42:00 EDT. Please see our terms for use of feeds.

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