|
|
|
Holograms developed by a team at the University of Arizona (UA) could result in a 3D projection that wouldn’t require the viewer to use glasses or other gadgets to view, the university announced in a press release on Wednesday.
The team, led by the university's Professor of Optical Sciences Nasser Peyghambarian, said that soon, holograms like those in Star Wars projected by R2D2 will become reality. Peyghambarian said the technology, which is called “holographic telepresence,” will be able to display high-resolution 3D images and video. |
“Holographic telepresence means we can record a three-dimensional image in one location and show it in another location, in real-time, anywhere in the world," Peyghambarian said in a statement.
“Holographic stereography has been capable of providing excellent resolution and depth reproduction on large-scale 3D static images," the authors wrote, "but has been missing dynamic updating capability until now."
Peyghambarian and his team have already projecting holograms on a 10-inch screen made from photorefractive material, but are looking to test it on a bigger 17-inch screen.
The image to be turned into a hologram is first captured by several cameras at different angles, encoded into a laser beam, and shined onto a reference beam, with the result being an array of 3D pixels that collectively look different from different perspectives.
"As you move your head left and right or up and down, you see different perspectives,” Peyghambarian said. “This makes for a very life-like image. Humans are used to seeing things in 3D."
Peyghambarian explained that one potential use of the technology could be 3D telepresence.
"Let's say I want to give a presentation in New York. All I need is an array of cameras here in my Tucson office and a fast Internet connection. At the other end, in New York, there would be the 3D display using our laser system," he said.
"Everything is fully automated and controlled by computer. As the image signals are transmitted, the lasers inscribe them into the screen and render them into a three-dimensional projection of me speaking."
source: theepochtimes.com
“Holographic stereography has been capable of providing excellent resolution and depth reproduction on large-scale 3D static images," the authors wrote, "but has been missing dynamic updating capability until now."
Peyghambarian and his team have already projecting holograms on a 10-inch screen made from photorefractive material, but are looking to test it on a bigger 17-inch screen.
The image to be turned into a hologram is first captured by several cameras at different angles, encoded into a laser beam, and shined onto a reference beam, with the result being an array of 3D pixels that collectively look different from different perspectives.
"As you move your head left and right or up and down, you see different perspectives,” Peyghambarian said. “This makes for a very life-like image. Humans are used to seeing things in 3D."
Peyghambarian explained that one potential use of the technology could be 3D telepresence.
"Let's say I want to give a presentation in New York. All I need is an array of cameras here in my Tucson office and a fast Internet connection. At the other end, in New York, there would be the 3D display using our laser system," he said.
"Everything is fully automated and controlled by computer. As the image signals are transmitted, the lasers inscribe them into the screen and render them into a three-dimensional projection of me speaking."
source: theepochtimes.com
|
|
