HP Labs builds a glasses-free, portable 3D display with wide viewing angles (video)

HP Labs builds a holographic LCD with extrawide viewing angles video

Typical attempts at a glasses-free 3D display have trouble with viewing angles; we're all too familiar with having to sit in a sweet spot to get the effect. HP Labs might have just solved this last problem with a prototype 3D LCD that would better accommodate the real world. The display's backlight has nanopatterned grooves that send blue, green and red in multiple directions, letting the LCD show only the light that would be seen from a given viewpoint. Those positions are set in stone, but they're both abundant (200 for photos, 64 for video) and can spread across a wide 180-degree viewing arc. At a thickness of as little as half a millimeter, a production LCD could easily be thin enough for a mobile device, too. The catch isn't so much the screen as the content. Producers need an image for every possible viewpoint, which could create a fair share of logistical problems: even though footage wouldn't necessarily require 200 cameras, it could limit fully immersive 3D to computer-generated visuals or else consume a massive amount of bandwidth. If those are the biggest barriers, though, we're still that much closer to the holographic smartphone we've always wanted.

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Via: MIT Technology Review

Source: Nature

Stream TV glasses-free 4K 3D eyes-on (video)

Stream TV glassesfree 4K 3D eyes on video

It wouldn't be CES without Stream TV showing off more interesting glasses-free 3D technology and then launching, um, nothing into the wide market. Hopefully that won't happen this time, now that the company has paired with OEM panel-makers Pegatron and Hisense, and is now showing off its technology in UltraHD 4k. It has a proprietary system for encoding 2D and 3D video using occlusion, which is delivered to standard panels that have been retrofitted with its optical glass sandwich to bring the spec-less 3D illusion to viewers. This year, it added all-new algorithms that can handle native UHDTV content or up-res HD to 4k, both in non-realtime for quality, or realtime to convert standard 2D TV to 3D on-the-fly.

The 3D viewing experience seems better than previous iterations to our eyes, and Stream TV explained that the improved resolution was due to the company's software filling in pixels on standard HD content to make up the deficit to 4k. The stereoscopic level (which can be adjusted) also seemed decent even if you move around the room, though still not nearly as good as passive or active 3D with glasses. It does trump passive tech in one area though, as there's no drop in the screen's brightness that normally happens when you don specs. All the content we viewed was HD that had been converted to 4k, unfortunately, so we couldn't judge how higher resolution, glasses-free 3D images would look at that res. As far as the real-time encoded live TV content, the resolution looked fine but the stereoscopic illusion was a little, well, flat -- as if layers of 2D objects were placed at varying distances.

Though Stream TV has created some neat technology, we've heard this entire song and dance before -- a few times -- and have yet to see products actually arrive in any volume to the marketplace. The company expects panels with its technology to start shipping sometime this year with comparable prices to other glasses-free 3D tech, but until it actually happens, don't hold your breath. Check the gallery below and video after the break, in plain old 2D, of course.

Continue reading Stream TV glasses-free 4K 3D eyes-on (video)

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MPEG drafts twice-as-efficient H.265 video standard, sees use in phones as soon as 2013

MPEG drafts twiceasefficient H265 video standard, sees use in phones as soon as 2013

All of that squabbling over H.264 may be rendered moot in the near future. The Motion Picture Experts Group (better known as MPEG) has just let us know that it was quietly drafting a new video standard while everyone was on summer vacation last month: H.265, also called High Efficiency Video Coding, promises to squeeze video sizes with double the efficiency of H.264. As you might imagine, this could lead either to a much smaller video footprint for bandwidth-starved mobile users or a hike to image quality with the same size as before. Imagine fast-loading HD streaming on 4G, or cable TV without all the excess compression, and you've got the idea. Ericsson Research visual technology lead Per Fröjdh anticipates H.265 coming as soon as 2013, when our smartphones and tablets are most likely to play it first. TV and other areas might have to wait, although Fröjdh is offering a consolation prize -- he's teasing a separate MPEG project that could give us glasses-free, compressed 3D video as a standard by 2014.

Continue reading MPEG drafts twice-as-efficient H.265 video standard, sees use in phones as soon as 2013

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MPEG drafts twice-as-efficient H.265 video standard, sees use in phones as soon as 2013 originally appeared on Engadget on Wed, 15 Aug 2012 21:46:00 EDT. Please see our terms for use of feeds.

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MIT Media Lab’s Tensor Displays stack LCDs for low-cost glasses-free 3D (hands-on video)

MIT Media Lab's Tensor Displays stack LCDs for lowcost glassesfree 3D handson video

Glasses-free 3D may be the next logical step in TV's evolution, but we have yet to see a convincing device make it to market that doesn't come along with a five-figure price tag. The sets that do come within range of tickling our home theater budgets won't blow you away, and it's not unreasonable to expect that trend to continue through the next few product cycles. A dramatic adjustment in our approach to glasses-free 3D may be just what the industry needs, so you'll want to pay close attention to the MIT Media Lab's latest brew. Tensor Displays combine layered low-cost panels with some clever software that assigns and alternates the image at a rapid pace, creating depth that actually looks fairly realistic. Gordon Wetzstein, one of the project creators, explained that the solution essentially "(takes) the complexity away from the optics and (puts) it in the computation," and since software solutions are far more easily scaled than their hardware equivalent, the Tensor Display concept could result in less expensive, yet superior 3D products.

We caught up with the project at SIGGRAPH, where the first demonstration included four fixed images, which employed a similar concept as the LCD version, but with backlit inkjet prints instead of motion-capable panels. Each displaying a slightly different static image, the transparencies were stacked to give the appearance of depth without the typical cost. The version that shows the most potential, however, consists of three stacked LCD panels, each displaying a sightly different pattern that flashes back and forth four times per frame of video, creating a three-dimensional effect that appears smooth and natural. The result was certainly more tolerable than the glasses-free 3D we're used to seeing, though it's surely a long way from being a viable replacement for active-glasses sets -- Wetzstein said that the solution could make its way to consumers within the next five years. Currently, the technology works best in a dark room, where it's able to present a consistent image. Unfortunately, this meant the light levels around the booth were a bit dimmer than what our camera required, resulting in the underexposed, yet very informative hands-on video you'll see after the break.

Continue reading MIT Media Lab's Tensor Displays stack LCDs for low-cost glasses-free 3D (hands-on video)

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MIT Media Lab's Tensor Displays stack LCDs for low-cost glasses-free 3D (hands-on video) originally appeared on Engadget on Thu, 09 Aug 2012 14:16:00 EDT. Please see our terms for use of feeds.

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MIT Media Lab’s Tensor Displays stack LCDs for low-cost glasses-free 3D (hands-on video)

MIT Media Lab's Tensor Displays stack LCDs for lowcost glassesfree 3D handson video

Glasses-free 3D may be the next logical step in TV's evolution, but we have yet to see a convincing device make it to market that doesn't come along with a five-figure price tag. The sets that do come within range of tickling our home theater budgets won't blow you away, and it's not unreasonable to expect that trend to continue through the next few product cycles. A dramatic adjustment in our approach to glasses-free 3D may be just what the industry needs, so you'll want to pay close attention to the MIT Media Lab's latest brew. Tensor Displays combine layered low-cost panels with some clever software that assigns and alternates the image at a rapid pace, creating depth that actually looks fairly realistic. Gordon Wetzstein, one of the project creators, explained that the solution essentially "(takes) the complexity away from the optics and (puts) it in the computation," and since software solutions are far more easily scaled than their hardware equivalent, the Tensor Display concept could result in less expensive, yet superior 3D products.

We caught up with the project at SIGGRAPH, where the first demonstration included four fixed images, which employed a similar concept as the LCD version, but with backlit inkjet prints instead of motion-capable panels. Each displaying a slightly different static image, the transparencies were stacked to give the appearance of depth without the typical cost. The version that shows the most potential, however, consists of three stacked LCD panels, each displaying a sightly different pattern that flashes back and forth four times per frame of video, creating a three-dimensional effect that appears smooth and natural. The result was certainly more tolerable than the glasses-free 3D we're used to seeing, though it's surely a long way from being a viable replacement for active-glasses sets -- Wetzstein said that the solution could make its way to consumers within the next five years. Currently, the technology works best in a dark room, where it's able to present a consistent image. Unfortunately, this meant the light levels around the booth were a bit dimmer than what our camera required, resulting in the underexposed, yet very informative hands-on video you'll see after the break.

Continue reading MIT Media Lab's Tensor Displays stack LCDs for low-cost glasses-free 3D (hands-on video)

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MIT Media Lab's Tensor Displays stack LCDs for low-cost glasses-free 3D (hands-on video) originally appeared on Engadget on Thu, 09 Aug 2012 14:16:00 EDT. Please see our terms for use of feeds.

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RED teases 4K REDray player and projector for the theater / millionaire set

RED teases 4K REDray player and Laser projector for the theater / millionaire set

We don't deny our unhealthy love for RED's gear, so just imagine the look on our poor-but-aspiring faces when Jim Jannard teased a 4K laser projector coming this year. Now the spec-list is out, we can see that the subtly branded REDray Laser will display 2D or 3D for passive glasses at up to 120fps, while lasting over 25,000 hours and costing less than $10,000. At the same time, there are more details on REDRay, a compatible player that'll throw out 4K content from its internal HD, SD cards or flash media. Wish list. Added.

RED teases 4K REDray player and projector for the theater / millionaire set originally appeared on Engadget on Mon, 16 Apr 2012 05:11:00 EDT. Please see our terms for use of feeds.

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