3D Conferencing System Allows for Virtual Light Saber Duels

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If your Wii boxing buddy or Star Wars light saber duel partner moved to a different town, technology can help bring you together for just one more game. Researchers at the University of Illinois at Urbana-Champaign and Intel have created a system that can support collaborative physical activities from different geographical locations.

“We can capture motions of the human body in real time and bring them together on a big screen,” says Ahsan Arefin, a doctoral student currently involved with the project.

The project called ‘Tele-immersive Environment for Everybody’ or TEEVE hooks up two off-the-shelf 3D cameras to a PC with a Firewire port. A gateway server at each site sends and receives the different video streams using standard compression techniques. A renderer is used to project the virtual interactions on a big screen monitor, creating a real-time virtual 3D effect. It’s like web conferencing, but with a virtual reality twist.

The system was on display Thursday at an Intel Labs “research day” in Mountain View, California. At the event Intel showcased technologies the company is working on.

In their demonstration of the TEEVE idea, Arefin and his colleague stood in two opposite corners of a room with light sabers in hand. They had 3D stereo vision cameras called BumbleBee 2 pointed at them. As the duo dueled, they could see their 3D images captured and reflected on screen.

The idea has applications beyond gaming. It can be used in business, sports and medicine, says Arefin. An experiment by the University had two dancers from different locations dancing together on a large screen.

The system is part of the quest towards more visual computing, says Jack Gold, principal analyst with consulting firm J. Gold Associates.

“Moving to a visual environment, from the text heavy one we are in right now, is one of the most important issues that we have to deal with in computing,” he says. “As they say, sometimes a picture is worth a thousand words.”

The biggest challenge in the application for the researchers comes from the demand on computational and network resources that the system imposes. TEEVE uses real-time 3D reconstruction algorithms that are necessary to convert 2D frame images to 3D frame that also includes the depth information. To optimize it, researchers have used multi-threaded computation and Arefin says TEEVE can work on PCs with high-end Intel processors.

“Our goal is to make the system portable and easily deployable because of its use of off-the-shelf components,” he says.


Study: iPhone Owners Are Older, Wealthier Than iPod Touch Users

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Marketing research company ComScore recently conducted a survey highlighting socioeconomic differences between iPhone and iPod Touch users.

First spotted by Fortune 500’s Philip Elmer-DeWitt, the survey discovered the following about the general iPhone and iPod Touch population:

  • 70 percent are men
  • 50 percent surf the mobile web more than they read newspapers or magazines
  • More than 40 percent use mobile devices more often than their computers to browse the web
  • More than 40 percent spend more time on mobile web browsing than they do listening to the radio

But more interesting are the results illuminating what iPhone users and iPod Touch owners don’t have in common:

  • iPhone owners are older: 69 percent of iPod Touch users are between 13 to 24 years old; 74 percent of iPhone customers are older than 25
  • iPod Touch owners are less wealthy: 78 percent of iPhone users have a household income of $25,000 or more, compared with 66 percent of iPod Touch users
  • More iPhone owners are parents: 46 percent of iPhone users have children while only 28 percent of iPod Touch users do

And other more general observations:

  • iPod Touch owners are more likely to shop for cellphones (obviously), clothes, TVs and other electronics
  • iPhone owners are more likely to spend on traveling, financial services and real estate

Pretty neat, and the results make plenty of sense. I’m surprised iPod Touch owners shop for gadgets more than iPhone owners, though. I always thought the iPhone was a status symbol for spend-happy tech geeks — more so than the iPod Touch. Your thoughts?

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Photo: Steve Rhodes/Flickr


Interactive data eyeglasses could bring the PC to your face, won’t fix nearsightedness

Leave it the mad scientists at Fraunhofer-Gesellschaft to concoct this one. Rather than just figuring out a way to read back information in one-way fashion on one’s glasses (think Sixth Sense, but with eyewear), these folks are diving right in to the real stuff: bidirectional communication. In essence, their goal for the interactive data eyeglasses is to track eye movement in order to allow ones retinas to scroll through menus, flip through options and zoom in / out on a map. Obviously, a microdisplay will be necessary as well, but that’s just half the battle. We’ll confess — we’re still not humble enough to take our Vuzix HMD out in public, but we just might swap our Transitions[TM] for a set of these.

[Via OLED-Display]

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Interactive data eyeglasses could bring the PC to your face, won’t fix nearsightedness originally appeared on Engadget on Thu, 04 Jun 2009 08:19:00 EST. Please see our terms for use of feeds.

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NC State gurus keep hearts beating outside of the body

If NC State‘s athletic branches had even half the aptitude as its medical researchers, maybe then those blue boys down the road wouldn’t have so much right to bang us up. Personal beefs aside, we’re simultaneously stoked and amazed by a new machine crafted down in Raleigh, one that enables scientists to keep a heart pumping even after it has been removed from the body, but for research purposes only. Andrew Richards, a bright young mechanical engineering student, designed the so-called dynamic heart system, which “pumps fluid through a pig heart so that it functions in a very realistic way.” Obviously, such a device has a multitude of benefits, including time / money savings compared to alternative approaches, the ability to record the inner workings of a pumping heart and scoring the creator some serious street cred in the industry. Mind-blowing video is just after the break.

[Via Neatorama]

Continue reading NC State gurus keep hearts beating outside of the body

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NC State gurus keep hearts beating outside of the body originally appeared on Engadget on Wed, 03 Jun 2009 11:37:00 EST. Please see our terms for use of feeds.

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Preyro robot experiment could enable robots to better mimic animals, kill us all

It’s kind of strange, really, how we can see just how near the end is, yet these so-called geniuses employed within the realm of academia are totally oblivious to their own evil deeds. Take cognitive science professor John Long, for instance, who is currently conducting a Preyro robot experiment in a Vassar College lab that intends to “allow robots to mimic animals far better than before.” To him, he’s just hoping to study evolutionary patterns in order to better understand how certain tweaks to things like fins and tails affect performance in the place we call reality. Though, there’s a very real possibility that this research could accelerate the impending robot apocalypse by at least a score. Oh, what we’d give to be incognizant of the truth.

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Preyro robot experiment could enable robots to better mimic animals, kill us all originally appeared on Engadget on Mon, 01 Jun 2009 06:42:00 EST. Please see our terms for use of feeds.

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Corkscrew nanopropellers may one day deliver drugs internally

Clearly, vaccinations are so three years ago. As the race continues to find the best, most mobile internal transportation device for delivering drugs to remote places within the body, Peer Fischer of The Rowland Institute at Harvard University has teamed with colleague Ambarish Ghosh to concoct the wild creation you see to the right. The glass-derived nanopropeller was designed to move in a corkscrew motion in order to plow through syrupy, viscous liquids within the human frame. The device itself is fantastically small, measuring just 200 to 300 nanometers across at the head and 1 to 2 micrometers long. Fischer points out that each of these can be controlled with a striking amount of precision via an external magnetic field, though we don’t get the impression that they’ll be on to FDA testing in the near future. Ah well, at least our gra, er, great-grandchildren will be all taken care of.

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Corkscrew nanopropellers may one day deliver drugs internally originally appeared on Engadget on Mon, 01 Jun 2009 00:56:00 EST. Please see our terms for use of feeds.

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Acoustic superlens could mask ships from sonar… in theory, anyway

Man, the mad scientists are really on a roll of late. First we hear that Li-ion cells are set to magically double in capacity, and now we’re learning that a new form of invisibility cloak is totally gearing up for its Target debut. As the seemingly endless quest to bend light in such a way as to create a sheath of invisibility continues, the University of Illinois at Urbana-Champaign’s Nicholas Fang has reportedly developed a metamaterial that acts as a type of acoustic superlens. In theory, at least, this approach would rely on phreaking with sound rather than light in order to intensely focus ultrasound waves; by doing so, one could hypothetically “hide ships from sonar.” To be fair, this all sounds entirely more believable than hiding massive vessels from human sight, but we’re still not taking our skeptic hat off until we see (er, don’t see?) a little proof.

[Via Slashdot]

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Acoustic superlens could mask ships from sonar… in theory, anyway originally appeared on Engadget on Sun, 31 May 2009 21:32:00 EST. Please see our terms for use of feeds.

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Ultra-powerful laser could make incandescent light bulbs more efficient

Look, LED light bulbs are fanciful, great for Ma Earth and a fine addition to any home, barber shop or underground fight club. But let’s be honest — even the guy that bikes through blizzards to get to work and wears garb that he grew in his basement isn’t apt to shell out $120 a pop to have what’s likely the most efficient light bulb American dollars can buy. Enter Chunlei Guo from the University of Rochester, who has helped discover a process which could morph a traditional incandescent light bulb into a beacon of burning light without using nearly as much energy as before. In fact, his usage of the femtosecond laser pulse — which creates a “unique array of nano- and micro-scale structures on the surface of a regular tungsten filament” — could enable a bulb to increase output efficiency in order to emit 100-watts worth of light while sucking down less than 60-watts of power. Per usual, there’s no telling when this new hotness is likely to hit the commercial realm, but one’s thing for sure: we bet GE‘s paying attention.

[Via Physorg]

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Ultra-powerful laser could make incandescent light bulbs more efficient originally appeared on Engadget on Sun, 31 May 2009 16:26:00 EST. Please see our terms for use of feeds.

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Air-fuelled STAIR battery could last ten times longer than traditional cells

It’s funny, really. We’ve figured out how to put men an women on the moon and repair an orbiting telescope, but we can’t concoct an AA battery that lasts more than four days inside a Teddy Ruxpin. Thanks to a revolutionary new design from the labs at the University of St Andrews, all that could be well on the way to changin’. Researchers at said institution have teamed up with partners at Strathclyde and Newcastle in order to design an air-fuelled STAIR (St Andrews Air) cell that could theoretically last up to ten times longer than current batteries. Put as simply as possible, this design utilizes oxygen in the air as a re-agent instead of heavy, costly chemicals; the result is a lighter, cheaper battery with loads more capacity. Needless to say, gurus within the project are already dreaming of a prototype to fit in small gizmos such as cellphones or MP3 players, though we wouldn’t expect one anytime soon — after all, there’s still two years of research left to complete.

[Thanks, Khattab]

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Air-fuelled STAIR battery could last ten times longer than traditional cells originally appeared on Engadget on Sat, 23 May 2009 11:44:00 EST. Please see our terms for use of feeds.

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Purdue researchers concoct new invisibility cloak, plan Walmart debut

Hate to say it, but we’re beyond the point of hope here. We just won’t ever, ever see a real-deal invisibility cloak during our relatively brief stint on Earth. That said, researchers at Purdue University are doing their best to prove us wrong, recently developing a new approach to cloaking that is supposedly “simple to manufacture.” Unlike traditional invisibility cloaks, which rely on exotic metamaterials that demand complex nanofabrication, this version utilizes a far simpler design based on a tapered optical waveguide. A report from the institution asserts that the team was able to “cloak an area 100 times larger than the wavelengths of light shined by a laser into the device,” but for obvious reasons, it’s impossible to actually show us it happened. Regardless, for the sake of the kiddos above, we’re hoping this stuff gets commercialized, and soon.

[Via Digg, Image courtesy of Thomas Ricker (yes, that Thomas Ricker)]

Continue reading Purdue researchers concoct new invisibility cloak, plan Walmart debut

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Purdue researchers concoct new invisibility cloak, plan Walmart debut originally appeared on Engadget on Fri, 22 May 2009 09:21:00 EST. Please see our terms for use of feeds.

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