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New hologram technology brings 3-D to life

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Executives may not be able to beam a full three-dimensional image of themselves across the world just yet but researchers are a step closer to 3-D real-time images, an advance in holographic technology that could make video conferencing far more lifelike.

Nasser Peyghambarian of the University of Arizona and colleagues said on Wednesday their new holographic technology can project a near 360-degree image to another location that updates every two seconds.

Known as three-dimensional telepresence, the technology addresses shortcomings of current holograms, which give the illusion of 3-D but leave out the rear view, said Peyghambarian, whose study appears in the journal Nature.

“If you look at the 3-D object, we show it is very much like if you look around you. It’s the closest to what you see compared to any other technology,” Peyghambarian, who also holds a position at the National Science Foundation, said on a telephone briefing.

He said the earliest use of the technology could be in movies, given the popularity of 3-D films such as “Avatar.”

“We foresee many applications, including for example, car or airplane manufacturing. They can look at the hologram and design the system they have in real-time and look at the model and make changes on it as they go,” Peyghambarian told the briefing.

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Surgeons around the world also could participate in complex operations at the same time, he said.

To create the hologram, cameras take color images at multiple angles and send them over an Ethernet line. In the lab model, images are projected onto a transparent plastic panel and refreshed every few seconds.

Future displays will lie flat on a table and the system will create an optical illusion that the image is floating above the screen.

The three-dimensional telepresence technology differs from 3-D technology in several ways.

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With 3-D, one perspective is projected to one eye and another perspective is projected to the other, which is why people wear special glasses. With the hologram, no special glasses are needed and the number of perspectives is only limited by the number of cameras used.

In a videoconference, this means people sitting on one side of a table see the front of a person, people on the side would get a side view and people in the back would see their back.

The technology builds on earlier work by the same group, which in 2008 reported a black and white 3-D image that could be updated every four minutes.

The new system is more than 100 times faster.

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“This breakthrough opens new opportunities for optics as a means to transport images in real time,” Lynn Preston, director of the National Science Foundation’s Engineering Research Centers program, said in a statement.

Peyghambarian said the team still needs to work out some issues, including improving the screen and reducing the system’s power demands, which will take about two years.

It will be far longer before the system can be used by ordinary consumers.

“I don’t think you can see these in our houses in less than seven to 10 years,” he said.

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(Editing by Maggie Fox and Bill Trott)

Source: Reuters US Online Report Technology News

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Maddow slams Trump’s era of government officials ‘saving the country from the commander-in-chief’ with leaks

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Rachel Maddow on Monday worried about the pattern of government officials leaking to the press to stop President Donald Trump from sabotaging United States' interests to help Russia.

The MSNBC anchor broke down the key questions raised by the bombshell New York Times report that officials were keeping secrets from Trump to protect U.S. interests.

Maddow reminded of a June 2017 story by Michael Isikoff.

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Trump angrily demands newspaper reveal unnamed sources behind bombshell report on his Russia policy

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President Donald Trump on Monday evening again lashed out at The New York Times for reporting on his Russia policy.

"The story in The New York Times about the U.S. escalating attacks on Russia’s power grid is fake news, and the failing New York Times knows it," Trump argued in a tweet sent after 10 p.m.

"They should immediately release their sources which, if they exist at all, which I doubt, are phony," he continued.

"Times must be held fully accountable," he demanded.

https://twitter.com/realDonaldTrump/status/1140804748423118848

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Trump seethes and calls Fox ‘fake news’ after seeing a story that made him mad

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Trouble appears to be brewing between President Donald Trump and the cable news station he loves: Fox News.

In a tweet Monday night, the president lashed out at the network over its polling and called it “fake news’ — an epithet he usually reserves for mainstream outlets:

https://twitter.com/realDonaldTrump/status/1140768516288782336?ref_src=twsrc%5Etfw

Media Matters for America Senior Fellow Matthew Gertz, who has previously noted that Trump appears to record news segments and watch them a few hours later, suggested that the president appeared to be reacting to an earlier segment from Special Report with Bret Baier. The segment showed that, even according to Fox News’ polling, Trump trails every single leading candidate in the Democratic field in head-to-head matchups.

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