Slashdot Mirror
Holograms - The Future Without The Funny Glasses
hopbine writes "MIT Technology Review has an
interesting article
on the latest trends in holograms. I like the NYU's NY3D system. It
puts an LCD display in front of a normal CRT and by monitoring the viewers
eye movement it can flash on and off parts of the LCD screen showing
each eye a different image through the gaps, producing a 3D image.
Another research project shows how researchers can "feel"
the hologram.
Maybe the holodeck is not that far away !"
Companies Working in Three Dimensions
COMPANY TECHNOLOGY POSSIBLE APPLICATIONS
Actuality Systems
(Burlington, MA) Spinning screen inside a clear sphere creates 3-D images that appear to float. Battlefield visualization, biomolecular research
Deep Video Imaging
(Hamilton, New Zealand) Two LCD screens, one in front of the other, provide a multi-dimensional effect. Finance, navigation, petrochemical exploration, medical R&D, graphic design
Dimension 3
(Woodland Hills, CA) Color-filtering glasses and glasses with one dark lens make moving objects stand out. Television, print media
Dynamic Digital Depth
(Santa Monica, CA) Software recreates 3-D depth data from two-dimensional materials. Advertising, retail, television, computer gaming
X3D Technologies
(New York, NY) LCD glasses work with an ordinary display to create a 3-D illusion. Television, personal computers
What we see depends on mainly what we look for. -- John Lubbock Now search for that bug slave!
Just incase you aren't just trying to be funny...
Holodeck is a a room that can project light and force fields to create the illusion of being some place.
What we see depends on mainly what we look for. -- John Lubbock Now search for that bug slave!
as how is it going to handle multiple people
It can't, its that simpele. This is not for presentation to others.
This one?
a/s/l here. Sorry, adding domain tags to your s
Yeah, don't believe in any technology that tracks eye movements. It's just too hard right now. It's basically only possible if the user calibrates the eye tracker at the start of the sessions, and then does not move their head at all through the rest of the session. A user moving their head throws off the whole calibration.
When I used to work with eye tracking (not that long ago), the user must be in a piece of equipment that is similar to the one the contact doctor uses on you when he wants to test for glaucoma. That was indeed a step up from the setup that require a "bite-bar", in which the users teeth are sunk into a mold previously taken of their teeth, making sure their head does not move even the slightest bit.
Most of these technologies are also based on old ideas and have also been around for years; it's just that the ability of computers and displays is finally catching up with the needs of such displays.
Overall, it is hard to see, though, why people really care that much about not wearing glasses. LCD shutter glasses or head mounted displays are getting small and less expensive. Instead of having some bulky contraption take up space, wouldn't you rather have something small you can take anywhere?
The Star Trek Holodecks used replicator technology to actually assemble all of the things in the holodeck out of "real" matter. But since (for some reason) Star Trek technology is unable to create life, the holodeck then uses an inanely complex system of mini tractor beams to move all of that matter in the life-like fashion.
The "fake" portions of the holodeck are the images projected on the walls (the holodeck is just a room), and then some elements of energy and matter are substituted for safety reasons.
For those that would consider this flamebait, sorry about that, I picked up a Star Trek NC1701-D Technical Manual at a convention once while I was in high school, and it was awesome.
Did anyone else check out the 3D Volumetric Display at Actuality Systems? Very, very cool stuff.
Their marketing department also seems to realize the average consumer will use this for 3D pr0n, as their Photographs page takes special care to include a "last but not least" shot of "[The] pelvic region of female anatomy."
w00t!
CAn'T CompreHend SARcaSm?
Yes. There's actually a section about Holodeck functionality in the Star Trek next Generation Tech manual, where they show the person standing in the middle of the holodeck at all times.
Always made me wonder, how many people could you really fit in the holodeck at a time? In Next Generation, Holodeck was a meeting hall, probably 60x60 feet, with a height of 40 feet or so. In DS9, the holosuites were 20x20, at 20feet high. How did they ever fit seven or more people in there without the people seeing each other all the time? There were quite a few episodes where the whole senior staff were in the holosuites, including the whole last half of 7th season when Vic's Vegas Lounge was running non-stop.
"It take 9 months to bear a child, no matter how many women you assign to the job."
"It take 9 months to bear a child, no matter how many women you assign to the job."
Did you read the article? The first MIT research project described (Mark II Holographics Video) in fact renders a real hologram: "At its core are the basic steps of creating a standard hologram: A laser beam is split in two. [...] Instead of light and mirrors, Benton and his team use specially developed computer algorithms. The algorithms calculate the kinds of microscopic lines necessary for a certain hologram, convert them into sound waves, and then send the waves into a stack of tellurium-oxide crystals that have the unique property of distorting temporarily when sound waves pass through them. That distortion forms the microscopic lines of the diffraction pattern that make up a hologram. A laser beam passing through that pattern conveys the image from the crystals to a view screen". The article has a diagram depicting this.
Under capitalism man exploits man. Under communism it's the other way around.