| Carnegie Mellon smart headlight prototype blacks out raindrops for clearer view of the road Jul 4th 2012, 17:17  Researchers from Carnegie Mellon have developed a prototype smart headlight which blots out individual drops of rain or snow -- improving vision by up to 90 percent. Made with an off-the-shelf Viewsonic DLP projector, a quad-core Intel Core-i7 PC and a GigE Point Grey Flea3 camera, the Rube Goldberg-esque process starts by first imaging raindrops arriving at the top of its view. After this, the signal goes to a processing unit, which uses a predictive theory developed by the team to guess the drops' path to the road. Finally, the projector -- found in the same place as the camera -- uses a beamsplitter like modern digital 3D rigs. Used in tandem with calculations, it transmits a beam with light voids matching the predicted path. The result? It all stops light from hitting the falling particles, with the cumulative process resulting in the illusion of a nearly precipitation-free road view -- at least in the lab. So far, the whole process takes about a hundredth of a second (13 ms) but scientists said that in an actual car and with many more drops, the speed would have to be about ten times quicker. That would allow 90 percent of the light located 13 feet in front of the headlights to pass through, but even at just triple the speed, it would give drivers a 70 percent better view. To see if this tech might have a snowflake's chance of making it out of the lab, go past the break for all the videos. Continue reading Carnegie Mellon smart headlight prototype blacks out raindrops for clearer view of the road Carnegie Mellon smart headlight prototype blacks out raindrops for clearer view of the road originally appeared on Engadget on Wed, 04 Jul 2012 13:17:00 EDT. Please see our terms for use of feeds. Permalink  PhysOrg |  Carnegie Mellon | Email this | Comments | | The most expensive internet in America: fighting to bring affordable broadband to American Samoa Jul 4th 2012, 16:15  "You could argue that there's some value in it." That's New York City Mayor Michael Bloomberg, speaking candidly during a recent interview at D10 in California. The topic of conversation? Widespread WiFi, and whether or not the government should be the one thinking about its future ubiquity. More specifically, if WiFi hotspots should be treated like "roads or water supply," as aptly stated by AllThingsD's Kara Swisher. This obviously isn't the first time such an idea has crossed the minds of those connected to Washington, D.C. Muni-Fi (municipal wireless networks) projects were all the rage a few years back, but one spectacular failure after another swiftly extinguished that momentum. In more modern times, America (as well as other nations) has sought to solve the "rural broadband" problem, bringing high(er)-speed internet connections to places with a higher bovine population than human. But bringing broadband to places like rural North Dakota seems like an easy chore to a small, but passionate, group of 60,000 sitting some 4,770 miles from San Diego, California. American Samoa may be an unincorporated US territory located closer to pure bliss than the hustle and bustle of Wall Street, but it's no doubt being taken into consideration in recent mapping projects aiming to pinpoint the areas most lacking in terms of digital infrastructure. Unbeknownst to most mainlanders, this fragile island chain is home to the most expensive internet in America, and the political issues surrounding it are astonishing. Head on past the break to learn more on what I discovered. Continue reading The most expensive internet in America: fighting to bring affordable broadband to American Samoa The most expensive internet in America: fighting to bring affordable broadband to American Samoa originally appeared on Engadget on Wed, 04 Jul 2012 12:15:00 EDT. Please see our terms for use of feeds. Permalink | American Samoa Broadband Map, One Economy | Email this | Comments | | Samsung Galaxy Chat brings Nature UX to the messaging crowd Jul 4th 2012, 15:47  We didn't have to wait long to find out what Samsung would do with the GT-B5330 we saw just a day ago: meet the much more elegantly-titled Galaxy Chat. The finished product is Samsung's first phone outside of the Galaxy S III to carry the Nature UX layer, but takes it in a very message-happy direction with a QWERTY keyboard, a bundled copy of Quick Office and a dedicated key for ChatON that reminds us of the BlackBerry Curve 9320's BBM shortcut. Not that you'd confuse the two otherwise, as the Galaxy Chat's 3-inch, 480 x 320 touchscreen and 4GB of built-in storage (plus a microSD slot) are decided steps up. About our only letdowns relative to the category are the 2-megapixel, flashless camera at the back and the difficulty some will have in getting their hands on Samsung's first keyboard-touting Android 4.0 phone. Unlike the global blitz we saw with the Galaxy S III, the Chat is launching in Spain this month and will exclude some large swaths of the Earth when it goes worldwide later on, leaving out Africa, North America and Russia. Samsung Galaxy Chat brings Nature UX to the messaging crowd originally appeared on Engadget on Wed, 04 Jul 2012 11:47:00 EDT. Please see our terms for use of feeds. Permalink | Samsung | Email this | Comments | |
