UniversityOfNorthCarolina

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  • Chris Velazco/Engadget

    Apple donates 1,000 watches to eating disorder study

    by 
    Jon Fingas
    Jon Fingas
    10.15.2018

    The use of Apple Watches in medical studies now includes research into eating disorders. Apple is donating 1,000 smartwatches to a University of North Carolina study (the Binge Eating Genetics Initiative, or BEGIN) that will help understand bulimia nervosa patients and others with binge eating behavior. The wristwear will track heart rates over a month-long period to see if there are any spikes ahead of binging incidents. If there are, it might be possible to alert caregivers and patients before these acts take place.

  • 3D faces based on Facebook photos can fool security systems

    by 
    Mariella Moon
    Mariella Moon
    08.21.2016

    Facial recognition systems aren't quite perfect yet and can still make mistakes especially when they're assessing the faces of people of color. Now, a team of researchers from the University of North Carolina showed that companies developing security systems based on the tech really do have a lot of work ahead of them. They proved that a number of existing systems can be fooled by the VR-like, computer-rendered faces they created. Further, they made their 3D models, which they showed the security systems on a phone, using only photos taken from social networks like Facebook.

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

    by 
    Alexis Santos
    Alexis Santos
    08.11.2012

    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.

  • iSpy software can read texts and steal passwords with its little eye (video)

    by 
    Amar Toor
    Amar Toor
    11.04.2011

    We spy, with our bleary eye, a new piece of software that could make it dramatically easier to steal personal data. The program, known as iSpy, allows devious voyeurs to remotely identify and read text typed on touchscreen displays. That, in and of itself, isn't exactly new, but iSpy takes shoulder surfing to slightly terrifying new areas -- namely, those beyond the "shoulder." Developed by Jan-Michael Frahm and Fabian Monrose of the UNC-Chapel Hill, this program, like those before it, takes advantage of the magnified keys found on most touchscreens. All you'd have to do is point a camera at someone else's screen and iSpy will automatically record whatever he or she types by stabilizing the video footage and identifying the enlarged keys. If you're using a smartphone camera, you'll be able to eavesdrop from up to three meters away, but if you opt for a more heavy duty DSLR device, you could steal passwords from up to 60 meters away. The software can also recognize any words typed into a device, and, according to its architects, can identify letters with greater than 90 percent accuracy. When used with a DSLR camera, iSpy can even pick up on reflections of touchscreens in sunglasses or window panes from up to 12 meters away. To avoid this, Frahm and Monrose recommend disabling the magnified key function on your smartphone, or using some sort of screen shield. We recommend checking out a video of the program, after the break.

  • UNC researchers develop a system for creating 3D models using images pulled from Flickr, off-the-shelf components

    by 
    Joseph L. Flatley
    Joseph L. Flatley
    11.28.2010

    A group of researchers from the University of North Carolina and the Swiss university ETH-Zurich have teamed up to develop a system for creating 3D models of famous landmarks using photos from photo sharing websites like Flickr. Unlike previous projects at Microsoft and the University of Washington, the team at UNC used a home PC (albeit one with four GPUs) to process millions of images pulled from the Internet and construct 3D models of such landmarks as the Colosseum and the Roman baths at Sagalassos (above). And all the models were created in less than a day. According to UNC Chapel Hill's Jan-Michael Frahm, the process improves on current commercial systems by a factor of 1,000 to one. "Our technique would be the equivalent of processing a stack of photos as high as the 828-meter Dubai Towers, using a single PC, versus the next best technique, which is the equivalent of processing a stack of photos 42 meters tall – as high as the ceiling of Notre Dame – using 62 PCs," he said. "This efficiency is essential if one is to fully utilize the billions of user-provided images continuously being uploaded to the Internet." He sees any number of uses for this technology, from AR integration to 3D maps for rescuers in case of a natural disaster.

  • Attack of the animalbots: octopus, fish inspire new robot designs

    by 
    Evan Blass
    Evan Blass
    05.14.2006

    Rather than a future filled with humanoid robotic overlords as envisioned by the Terminator films, the proliferation of animal-inspired robots makes it seem much more likely that we'll be doing the bidding of a veritable zoo of snakebots, insectbots, robolobsters, mulebots, and perhaps the occasional sharkbot / attack dolphin. The latest animals to have their moves cribbed by researchers are the octopus and fish, with DARPA working on a pneumatic tentacle to replace the clumsy robotic claws of old, while students and faculty at Singapore's Nanyang Technological University have invented a robotic, propeller-less propulsion system that mimics the undulating motion of fins. DARPA's invention, called the Octarm and part of the larger Biodynotics program, was developed in collaboration with scientists at the University of North Carolina, and uses a 24-volt electro-pneumatic pressure system to control a tapered, inflatable arm that can do both fairly precise work as well as heavier lifting. NTU's project, meanwhile, employs an artificial fin attached to adjustable spokes that create a wave-like motion for propelling the bot forward in a manner very similar to a stingray's movements. Movies of both new members of the growing animalbot army, whose purposes are mostly military in nature, are available by following the "Read" links below...Read- Octarm [Via Engadget Japanese]Read- Fishbot [Via Yahoo! Asia]