No Glasses Needed For TI's New 3D Display
adeelarshad82 writes "At the MWC, TI showed off a tablet-sized device with a 3D display that doesn't require glasses, running on an existing TI OMAP3 chipset. The 3D demo showed images and video in 3D by using a standard 120-Hz LCD with a special overlay film from 3M that can direct images either towards your left or right eye. By flickering two images very quickly, running at 60 frames per second rather than the usual 30, the display transmits a different picture to each eye, creating a simulated 3D image. The 3D picture can be created using a handheld with dual 3-megapixel cameras and an 800-MHz TI OMAP 3630 chipset."
This might just blow my mind, I have to RTFA.
Does this technology have a reasonable viewing angle?
Not only viewing angle but how is the viewing distance? Does it work at any distance or just a narrow range?
Great, now if only they could find a way to require no glasses on the person watching it.
The usable viewing angle has to be something like 5 degrees +/- unless it somehow can target your eyes with a camera and tune the overlay to compensate... Either way it is limited to one user at a time, which is probably acceptable for most tablets.
Now, how about something for the 5% of us with Amblyopia?
Since I already wear glasses, I don't really care about those 3D viewers since its a pain to have to remove my glasses, put on contacts just to turn around and put on another pair of glasses. Removing the middleman here would be a step in the right direction since I'm not alone with having to already wear glasses and not everyone can/has contacts.
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very nice, for a hand-held device; not very practical for living-room. You have to sit directly in front of it to see in 3D.
But on a device that small, not so great. It sounds like the overlay TFA mentions is like the static 3-D images that have been around forever. If so, it wouldn't work on a large screen across the room, or if you weren't right in front of it.
As to "no glasses needed", most folks over 40 are going to need glasses to see anything that small whether 3D or 2D.
I want the polaroid technology, the glasses are light and cheap, require no batteries or electronics, with realistic colors. It would be hard to do with a plasma or LCD, but I think it could be done.
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It's a handheld device, not a TV-sized device. You don't need nearly as a big of a viewing angle for a handheld.
Which technology is it? The only two "no-glasses" technologies so far are lenticular and parallax.
Their next graphing calculator is going to make some awesome graphs!
I'm so glad they included a 2D picture of the 3D-ness in action.
The greasy fingerprints were a nice touch too.
The viewing angle isn't 5 degrees, though.. it's a good bit larger than that.
The major problem is that the overlay (lenticular lenses) don't direct individual images -to your eyes- - such systems would be vastly more expensive and have whole other issues - they simply direct underlying pixels into different directions. If your left eye happens to be in the area where the left image is being directed, and your right eye in the area where the right image is being directed.. congratulations!
Now move your head an inch to the left/right. Now your right eye is seeing the left image and your left eye is seeing the right image. ouch.
Try half an inch.. each eye gets a portion of both images. ungh.
In other words.. there's sweet spots to sit in, and if you don't sit in one of those sweet spots, you're going to get conflicting sensory input.
So 1 user at a time isn't strictly true - if the person next to you sits in one of the other sweet spots, they'll be fine as well.
Half your resolution lost, however (they have to either alternate rows or columns.. 1920x1080 becoming 1920x540 or 960x1080). The human visual system can fill in the blanks from the other eye's perception, but that's just literally plugging holes.
There's far more disadvantages, including 2D quality (another display handles that partially by activating a liquid much like an LCD liquid in order to somewhat destroy the lenticular effect), but basically... Lenticular 3D is still crap.
Those who don't want to 'look ridiculous with one of those stupid glasses' on, though, should get Lenticular systems; it's their best bet for viewing stereographic 3D without glasses *right now* until we can perfect the whole realtime holographic plate thing and get some decent color reproduction off of those as well... -and- have it be affordable.
( barring any even more zany systems such as helical 3D displays which are more intended for volumetric displays than stereographic 3D etc. etc. )
You seem to have to be exactly in line with the device, so I guess there can be only one watching it at a time? (acrobatics doesn't count)
There were 5 reasonably large (22''?) screens using this tech, or similar, in the metro station in Amsterdam CS over the holiday period. Just showing adverts, but rather impressive despite that. ;-), just add compiz.
There were definite 'sweet spots' for the 3d effect, and the whole image jumped if you changed the viewing angle by more than a few degrees; but it cheered me up because I saw the future of the flat-panel monitor being demo'd
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Use contact lenses or have eye surgery to correct your vision. An easy fix!
The nVidia 3D vision's only real weakness is that it darkens the screen because of the LCD shutters. Otherwise, it's exactly the same picture quality at native resolution, and I've found it to be fully worth the money.
I doubt that's the solution their using (unless you know for sure). The problem is, the distance between the eyes varies by person. It's impossible to calibrate when manufactured to work for everyone.
Besides, the article says that they half the refresh rate here, not the resolution. Sounds different, but might be related.
I won't join Slashcott. OTOH, If Beta goes live, I just won't be back until it's fixed. Sorry Dice.
Your eye responds to images logarithmically, so if you get a bright flash then a dead time, you still see that bright flash for a short period. (Not meaning burn-in.)
One of the techniques for overdriving an LED is to pulse it. A regular LED will die very quickly if you throw 300 mA through it, but if you drive it with a pulse train where the average doesn't exceed the max current for the device, it can sustain a brightness almost equal to the 300 mA level.
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I'll say it. This is what the movie industry needs to deal with those pesky pirates. What wooden legged, one eyed pirate is going to steal a 3d film that requires two good eyes :)
Wow, I didn't know I could literally plug holes just by partially blocking one eye's vision. I'll have to remember that next time I have some hold plugging to do; could save a lot of time.
It is my personal experience that "flicker" glasses do, in fact, result in less brightness when viewing a display. I don't doubt what you are saying bout LED brightness, but I'm also not sure that it applies here.
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...and to make up for losing half of your framerate, they double the original framerate to 60hz.
light source as reported here: http://www.techradar.com/news/gaming/3m-announces-autostereoscopic-3d-gaming-for-mobiles-641343 Perhaps the 3M Scotch Optical Lighting Film combined with a lenticular film? http://www.3m.com/product/information/Optical-Lighting-Film.html Unless the LED light source direction can be changed then the geometry is fixed and very sensitive to the viewing position and viewing distance.
No pun intended, but any shutter-style technique will fail. Too many people suffer ill effects -- headache, nausea, dizziness, etc. The same can happen with polarization techniques but to a far lesser degree.
You’re mixing up terms there.
stereographic 3D
This would mean: two volumes (you know a volume has 3 dimensions).
“3D display” is correct for the helical and some holographic systems.
Everything else is still just a 2D plane acting as a screen, in 3D space (which is why you can’t focus on blurry areas, or rotate them at will, while watching). So it’s still essentially 2D. Just stereo instead of mono. (It’s an unfortunate thing, that “stereo” is mostly reserved for audio.)
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Anything that is designed for 3D looks like crap if you don't view it using both eyes.
Anything that is designed for 3D is just crap with a gimmick, just like high def.
Same old boring formulaic garbage, now in HiDef and 3D! Same tired old cliche sitcom jokes, now in 5.1 surround!
"Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
Besides, newer LCDs are using pulsed LEDs to eliminate sample-and-hold blur (as distinct from blur due to the LCD's slow response). You want flicker like CRTs used to do, at least if you want people like me to replace our CRT TVs with LCDs.
It's not a typical lenticular display, exactly.
The real innovation here is the 3M material, not the TI chips driving the display. The material requires that the image be illuminated alternately fro the right and left edges of the screen, the material deflects that light into the right and left eyes respectively. Unlike lenticular displays, there is only one viewing direction that works, but it won't diminish the spatial resolution of the display (only the temporal one.) It will work great for something like a game-boy or an iPhone. Even something as small as an iPad, though, might have problems because the difference in eye-to-screen angle from one side of the display to the other.
This slide tells you everything you need to know about the 3M film.
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I have a Plasma TV because the PQ on LCD, even the 240Hz LCD TVs, is fucking shitty.
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ECHELON is a government program to find words like bomb, jihad, plutonium, assassinate, and anarchy.
I used to play a PC game called Magic Carpet. It had a mode where all the game graphics were rendered in a 'magic eye' type mode. Once you got your eyes tweaked just right, it was all 3D and no glasses were required. Of course, it also looked like a box of crayons exploded.....
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Until NVIDIA randomly stops supporting the drivers. I remember a while back when their stereo drivers and GPU drivers were separate downloads and had to be kept in sync, and they just stopped releasing stereo drivers when newer GPU drivers came out. Is this still the case?
I cannot see how 3D will be any more than a gimmick like it was in the 70s without some huge leap in technology, which has not occurred. There is a huge change in the way content is being delivered to people's homes with internet only programming and it would seem there would be a whole lot more opportunities in trying to make it easier for people to view it on their TV along with regular cable and broadcast programming.
Go back to sleep, Grandpa.
The 240 Hz uses some kind motion interpolation crap. What the need is an LCD that flashes the backlight for a very short time each 1/60 second, roughly equivalent to how a TV does. It's not the frame rate, it's the length of the flash. At some point, only older folks will even know what a good CRT looks like, and how little motion blur it has. You'll have to pry my CRT TV from my cold, dead hands. And that's not even getting into the crappy image you get from an analog video source due to digital upscaling, ugh.
Hey, my old TV is one of the Sony 32" WEGA models. I spent a looong time trying to find an HD model that didn't suck.
Take a look at Panasonic's plasma line. It's actually watchable. Of course, the signal providers compress it to the point where there's blur everywhere, but with a good feed it's a good TV.
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ECHELON is a government program to find words like bomb, jihad, plutonium, assassinate, and anarchy.
You're confusing motion blur (which is in the source material, a function of the shutter speed and the motion of the subject with respect to the camera) with telecine/interlace artifacts. A 120Hz CRT given a progressive image (either 30fps or 24fps "progressive telecine") can reproduce the original material with no telecine artifacts and no judder (which exists on CRTs as well). Some of them can do good job doing inverse telecine as well, but there are limitations there.
Just as color TV shows no interest in catering to the colorblind, you must accept that there will be popular technologies that do not cater to you.
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They are separate downloads, but I don't think they have to be kept in sync. In any case, new 3D drivers continue to be released to patch games like Left 4 Dead 2.
I think nVidia are going to push this, it sells their overpriced shutter glasses and 120hz TVs from their partners, and it even encourages people to upgrade their GPU (3D naturally requires double the framerate). They've put a lot of effort into backwards compatibility and working with developers to get native 3D support in newer games.
Note: You can only install this driver if you have the installed the latest GeForce Graphics drivers v196.21.
I guess they started focusing on releasing new drivers since the 3D craze started up again. It also only seems to be supported on 8 series and above graphics cards, whereas they had support for the LCD shutter glasses (including brands other than NVIDIA) with older video cards a while ago.
See this thread as an example of NVIDIA dropping support for the older hardware.
Funny you mention that. Someone was offering one of those for free recently. I was willing to put up with it being 150 lbs, but then I read that analog inputs get upscaled digitally, so they look like crap, so I decided against it. I don't have anything with digital output, and I also play game consoles which need to not look like crap.
What Sony models around 30" support progressive, but aren't digital? I've alreaedy got a 27" that supports component (but not progressive), also gotten for free. People are getting rid of them like crazy, and I'm partial to Sony for some reason.
I'm talking about blur due to motion. It's not due to interlace or the film-to-digital process. I'm saying that the focus on LCD response time is only half the problem; the other half is the sample-and-hold the backlight being on constantly causes. The blur this creates only exists if your eyes are moving to follow a moving object on screen. If you kept your gaze on a fixed point while the object moved, the sample-and-hold blur wouldn't occur.
Dude, good idea, I see a market developing for circular polarized contact lenses... I'll even be their first customer (after the rabbit trials of course).
The question of whether a computer can think is no more interesting than the question of whether a submarine can swim.
They use the tiny vertical lens prisms to deliver four different angle-views depending where your eyes are. This very similar to the 3-D or blinking image plastic pictures you get in novelty shop or crackerjack box. The lateral resolution is reduced by the number of lens angles in the system (typically four). If you move you head a lot you lose the effect temporarily. And it doesnt work when you are laying down.
This kind of table in a system might have issues delivering enough angles and screen-width together on a tablet screen. And if you rotate the screen just a little bit, you'd lose the effect.
If you could hook an interface into each optic nerve to overlay images over a person field of vision it could be a whole lot more convincing.
And it wouldn't cause people's eye to bug out. Mark my works, real 3-D display will only be acheived by tapping into the brain and bypassing the eye.
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I just couldn't do the alternate winking fast enough to make them work.
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Tell me more about helical 3d displays. I tried googling for it, and ironically this very slashdot post was the second hit. A lot of links to CT scanner stuff, but nothing about how an display actually works.
Scientists with white lab coats all toasting champagne in the background.
The DS is old and two screen gimmick is old, it's time for a 3D display gimmick in a hand-held video game device. I bet this will be one (of possibly multiple) things Nintendo is going to latch onto and turn into a new handheld game console.
If they were already developing a new game console, I suspect they will abort the development and shift into this, it seems like the obvious next step for Nintendo.
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I don't know if anyone noticed this when looking at the pictures for the MWC but was the dance group for Samsung actually called “Sparkle Motion” , or was this just a “Donnie Darko” reference by the author?
Also did anyone else notice the “Garmin” car looked an awful lot like Steve Urkel's first car, his “Beamer”, on “Family Matters”?
I'll believe it when I see a photo.
Curious, I didn't know nVidia supported other shutter glass brands in the past. I thought they had written the drivers and the 2D -> 3D conversion specifically for their 3D Vision shutter glasses.
Previous glasses presumably didn't use 120hz monitors? Or did they only support specific games, rather than patching all DirectX games at the driver level? Either way, it's disappointing that nVidia have abandoned early adopters of desktop 3D.
Let me check. Yup- still running at the usual 75fps.
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And here's a mod which does the exactly the same in Quake 2 too.
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I'm not sure why anyone would care if what they were doing on a tablet was in 3D. I just can't imagine who is going to buy this.
Despite being loved by movie studios, I doubt 3D is going to catch on anyway.
I watched a few cartoons in 3D: Ice Age: Dawn of the Dinosaurs, The new Christmas Carol one, and the GForce 3D, and I was all gung ho about 3D, but when I saw Avatar, I realized why 3D just will never catch on:
The first ten minutes or so of Avatar made me sick, so much so, that if it had continued for the whole movie, I would have left the theatre. The rest of the movie was fine, and did not make me sick, and I realised why: In the beginning they are using the camera focus to focus in on close up objects. They do this all the time in 2D movies, like when the main character walks into the room, and the camera focuses in on the gun on the floor. It lets the audience know what the character is thinking to know what the character thought was important about the visual they were presented with and which we are seeing through their eyes.
But this just doesn't work in 3D because when your eyes are presented with a 3D image they assume that they can focus in on anything because it's *really there*. When the camera focuses in on a screw floating up close, and my eyes are trying to focus on the actor's face behind the screw, but it won't focus no matter what my eyes do, it makes me ill, and oddly pissed off. When I finally submit to the cameraman's tyranny ( and it feels like that in 3D, but not in 2D ) about what I should focus on, the focus has changed again, and I'm about to puke. Now I'm supposed to be focusing in on... What the hell AM I supposed to focus on? ok, lemme deliberately scan this image for something that's not blurry, DAMMIT I'm taking these glasses off. Shit now it's all blurry! Oh, now the scene is changing! Sigh..
The rest of Avatar did not have this problem, perhaps because the camera's focus was set to infinity, or perhaps because when the focus was something other than infinity, there was some unambiguously 'most interesting' thing in the scene which I naturally focused on anyway and which happened to be in focus because the cameraperson thought it was the most interesting thing too, like a face etc.
I have a theory that the beginning of Avatar was there to make people who would have criticised it for having uninteresting cinematography shut the f--- up by making them viscerally HATE camera trickery right up front. Then people are grateful for infinite focus.
Still, I think 3D is limited in ways 2D is not. I suppose each medium has it's strengths and weaknesses. It just seems to me that 3D is going to be perfect for the worst of what is being made now, and that it means we'll be seeing more of it until people get completely sick of it and quit going to the movies at all.
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In other words... they put the glasses on the screen.. it makes me think of the little toy they gave out in cereal boxes where you could see spider-man jumping when you would watch the plastic thingy under different angles...
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Sorry - it's a type of volumetric display where a surface (an inclined disc, or a helix, etc.) is spinning rapidly and projected onto at the right point in time to essentially project a 3D volume.
e.g.
http://www.youtube.com/watch?v=8KaQmn2VTzs - Actuality Systems Perspecta Volumetric 3D Display
I stand corrected - it's worse! ;)
There's always applications for this and lenticular displays, but in general.. brrr.
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