Perspecta Walk Around 3D Display 138
Spinneyhead writes "New Scientist reports on the Perspecta display, a goldfish bowl like device that displays moving images in such a way that they seem to "float" within the display.
"To display the image, software inside the Perspecta chops a 3D model generated by the computer into 198 separate pieces, like slices of cake, which are then projected onto the screen in quick succession by a graphics accelerator that feeds image slices to an optical system mounted below the screen. The result looks to the viewer like a 3D image composed of 100 million "volume pixels" or "voxels".""
Actuality Systems website. (Score:5, Informative)
You'll find the company here:
Actuality Systems [actuality-systems.com].
Re:Pictures? (Score:4, Informative)
Slashvertisement ? (Score:3, Informative)
Projecting images onto a rotating plane or helix [felix3d.com] is old stuff.
Pictures (flat) (Score:3, Informative)
http://www.actuality-systems.com/index.php/actual
How does it work? A spinning screen, must be transparent I guess... what's the sci-fi sphere for?
Re:Arrgh, Refresh rate!! (Score:3, Informative)
Better than a normal television.
=Smidge=
Re:hmm. (Score:2, Informative)
The airplane scenario does not hold, since current displays in control towers have been shown to be adequate. yes, it is cool to have a 3d image of the skies above, but you'd constantly have to move around the screen to see where it is in all three dimensions.
I have also found that displaying a molecule can be done sufficiently well, by rotating the molecule or by using stereoscopic views.
I seriously doubt that 3d displays will make a serious contribution in hospitals soon, since the images gathered by the equipment are too high in resolution to show and contain too much information in most cases to show in 3d (i.e. an artery blockage is too small to see on a 25 cm rotating display showing a cerebral MR angiography). Especially since the transprarency/depth cannot be set and thus too many arteries will be seen, distracting from that which is important.
What I'd give serious money for is automated highlighting of regions of interest in medical imaging. look at, for instance at the ph.d. thesis of Bart van Ginneken, 2001, Utrecht University.
B.
Re:Movie (Score:1, Informative)
Re:Arrgh, Refresh rate!! (Score:1, Informative)
I know modern multi-sync displays have taught people that higher refresh rates look better (i.e. have less flicker and may be brighter), but that's a limitation of multi-sync displays, not of the lower refresh rate. Multi-sync phosphors are designed to work at up for 120 Hz, and simply do not have the perisistance to stay lit at 60 Hz. Take a look at a good old fixed-frequency monitor sometime and you'll understand.
Being able to support a bunch of input modes is great -- high-end home theater gear all does that. But it also re-process the data to match the limited set of output modes, rather than trying to sync a 42 Hz LCD to a 59.97 Hz signal.
Size isn't an issue (Score:2, Informative)
As a side note, the flicker probably comes from viewing the back of the screen when it's turned away from the viewer. They need to add a second screen & projector to the back of the first.
So, any guesses on how long before we see "porn bowls" 6 feet high projecting full sized 3D porn?
Re:How does this work? (Score:2, Informative)