Slashdot Mirror
A 3-D Holographic Display
ZonkerWilliam sends along a link to a Wired writeup on a novel 3-D holographic display developed at USC. Be sure to watch the video at the bottom of the page. "The process is not simple but can be defined through a few key concepts: Spinning mirrors, high-speed DLP Projections, and very precise math that figures out the correct axial perspective needed for a 360-degree image (even taking into account a viewer's positioning.)"
It doesn't look very 3D in the video to me!
You can't put your hand through the image and disrupt it!
More accurately, if you try, your hand is likely to be destroyed by the mirror spinning at very high speeds. It's sort of like a force field...
Seems not new to me, but the idea of it in greyscale might be useful in medical applications if you could take a 3d Image, and manipulate it, however, seems gimicky to me. We do pretty well w/ two monitors and a pair of butter knives.
How much is your data worth? Back it up now.
If it projects an image over a solid object (that can crush your hand if you touch it, btw), it's definitely NOT holographic.
The requested URL (hardware/08/06/27/1551232.shtml) was not found.
Wow, that's beyond vaporware.
Be sure to watch the video at the bottom of the page.
I think I did when it was put on youtube like 10 months ago...
All power corrupts, my friend. Even on Slashdot.
It is pitch black. You are likely to be eaten by a grue.
That's a very loose definition of corrupt. It must be a total pain in the ass to have such ridiculously high moral standards about something so meaningless.
Bah! Its all smoke and mirrors. Well minus the smoke.
From the YouTube page (http://www.youtube.com/watch?v=YKCUGQ-uo8c): "Added: August 31, 2007"
Good to see Slashdot is up to date and timely as always...
For much more detail and higher-res video / images, go to:
http://gl.ict.usc.edu/Research/3DDisplay/
Morality is subjective, as is "meaningless", friend.
That aside, wouldn't it be nice to have relevant links to project pages directly responsible for the cool technology Slashdot is giving press to? Instead of a cookie-cutter article from a large news corp. that obviously is profiting off of a slashdotting?
It is pitch black. You are likely to be eaten by a grue.
Great, bury it for "troll". You might want to go learn what "troll" means before you toss it at someone.
Flamebait maybe, but it's truth. You just don't like it.
I saw this in person at the 2006 SIGGRAPH convocation in Boston. While it was an interesting device, it has been around a while. The device is sensitive to distortion if the mirror is not spinning at just the right speed, if the projector is off axis or if the projector refresh timing is off. It's a neat toy, but not the way to go if you are looking for precision in graphics. Too many moving parts; too many timing issues.
http://www.engadget.com/2007/08/31/researchers-develop-a-360-degree-holographic-display/
I think Slashdot make a profit too.
If there is advertising on the page linked to, then Slashdot can get 'referrer revenue'.
A spinning mirror? You could use that to vaporize a human target from space.
And the big concern with this technology is: make sure to keep your optics clean.
This has been a public service announcement from Real Genius Consulting, Inc.
The image in the middle of the article, with two pairs of TIE fighter images side by side appears to actually be two stereoscopic pairs, arranged for cross-eyed viewing.
I didn't find a caption or any other explanation, but give it a try. The video is great at showing how real the object seems from a rotational perspective, but viewing the still-frame of the TIE in 3D really drove it home for me.
If none of that makes any sense, try google's help.
Exactly. And even if they don't "officially" get revenue from something like that, there's always 'under the table'. Slashdot has a very valuable website, and there's no question that other companies would love to have a featured story linking to their website.
Not to say this is the truth, but it's definitely not out of the picture.
It is pitch black. You are likely to be eaten by a grue.
Actually there are company producing spinning mirror based holographic display (called volumetric display) that are used to display medical images.
Stereo3D has some references to these kind of companies.
"Sufficiently advanced satire is indistinguishable from reality." - [Tips: 1DrYakQDKCQ6y52z6QbnkxHXAocMZJE61o ]
I remember seeing something like this on the discovery channel in the early/mid 90's. It was a helical white corkscrew that spun really fast and had lasers/projector light up a spot on the corkscrew when it reached the appropriate Y-position at constant X/Z positions to make a 3D image.
from 09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0
to 45 2F 6E 40 3C DF 10 71 4E 41 DF AA 25 7D 31 3F
is defunct, and the other is blocked by websense as a "social Networking" site!
I've no Idea how I got modded up.
The butter knives part of that comment comes from the instructions for "Descent", where they show you how to make your monitor split the signal, and use butter knives or mirrors on each side and align them till the ships "PoP".
It was difficult, and I could never get the butter knives to stay in the right spot for long, but the effect was cool when it worked!
How much is your data worth? Back it up now.
Yet Another Whirling Nut
This is a swept volume display, look up volumetric displays.
It's been done before and is certainly nothing new.
Much as I want my R2D2/StarTrek/RedDwarf holograms it will take a leap forward in our understanding and control of photons.
We now have the technology display the secret Death Star plans
Actually it's not a swept volume display.
They used a type of mirror, not a diffuse plane. This should allow them to display images that appear to be in front of or behind the volume described by the mirror. Unfortunately they did not demonstrate this capability.
At first when I watched the video I thought they had managed to do not just the horizontal but the vertical axis. However I was wrong, they cheated in that they are tracking the location of the viewer to do up and down. I think with the appropriate reflector and more projectors they should be able to get a few fields of up and down.
The next step is to do this with staggered strip columns (flat rectangular strips with the back non-reflective). This should allow home theater sized 3d w/o glasses however you'd lose the ability to view it from behind.
As far as R2D2 is concerned, a holograph projector is pretty much that level of technology. Not sure if we can do that digitally yet or not.
They ARE out to get you simply because They are in it for themselves and they don't care about you.
Agreed .... very, very old news. I saw one of these things working about 8 years ago.
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This is cool, if only I had a pair of green and red (anaglyphic) glasses I could have my 3d desktop cube and wobbly windows and AWN pop out of the screen at me! Now that is cool!
like phosphorescent desert buttons singing one familiar song
Same here, although it was only three years ago for me. A neat device if you have forty thousand dollars to waste.
Evidently, the key to understanding recursion is to begin by understanding recursion. The rest is easy.
Morality is indeed subjective, but the definition of corrupt is not. Sort of like evil.
Watering down the terms serves nothing.
Actuality Medical product page, with the display.
"Sufficiently advanced satire is indistinguishable from reality." - [Tips: 1DrYakQDKCQ6y52z6QbnkxHXAocMZJE61o ]