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Selasa, 07 Agustus 2012

Autostereoscopic System


Does the Autostereoscopic System Work for You?

Autostereoscopic systems have promised to revolutionise 3D viewing. Primarily offering an alternative to wearing 3D glasses, various forms of autostereoscopic lenses and filters work to create the same depth effects without relying on clunky headwear. Lenses and parallax barriers have recently been used to improve 3D televisions, while similar technology has been tied to the launch of handheld gaming systems like the Nintendo 3DS, as well as mobile

Parallax barrier
Figure 3 shows a stylised example with three slits, where the left frame is coloured red and the right frame cyan.


Toshiba dynabook Qosmio 3D


Toshiba dynabook Qosmio T851/D8CR world’s first glasses-less 3D – simultaneously displaying 3D and 2D on one screen

Today Toshiba unveiled the world’s first glasses-less 3D notebook, which can simultaneously display 3D and 2D images in separate windows on a single screen. Users can watch high-quality 3D images or enjoy 3D games in one window without wearing 3D glasses or installing a dedicated panel over the display, while working, browsing the internet or sending e-mail in another window.

Specification of dynabook Qosmio T851/D8CR PT851D8CBFR
  • OS preinstalled Genuine Windows 7 Home Premium 64-bit
  • Processors                   Intel Core i5-2410M, 2.30GHz (Intel Turbo Boost Technology 2.0: up to 2.90GHz)
  • Chipset                         Mobile Intel HM65 Express Chipset
  • Memory                       8GB (4GB×2 in dual channel) PC3-10600 (DDR3-1333) -max 8GB supported
  • Display                         15.6-inch wide (16:9) FHD TFT color LCD, Clear SuperView LED
  • (Low-power LED backlight), 3D glasses-less, when displaying 2D: 1,920×1,080 dot, 3D Display at: 1,366×768
  • VGA accelerator          NVIDIA GeForce GT540M with 1GB dedicated video memory
  • Hard disk                     750GB 5,400 rpm, Serial ATA
  • Optical drive                 Blu-ray Disk BDXL compatible, DVD Super Multifunctional
  • Wireless                       IEEE802.11b/g/n, WPA/WPA2 enabled, WEP enabled, AES support, TKIP
  • Bluetooth                      Bluetooth wireless technology Ver3.0 + HS
  • TV Tuner                     Ground/ BS/110 degree CS digital broadcasting TV tuner, terrestrial analog broadcasting, BS/ CS TV tuner × 2
  • Sound                          harman/ kardon stereo speakers Headphone Output ×1, microphone (3.5mm   Mini-jack) ×1
  • Web Camera                About 100 million pixels effective pixels
  • Keyboard                     109 keys with numeric keypad
  • Mouse                          Wireless mouse (USB)
  • Interface                       RGB (15 D-sub pin mini-stage 3) × 1, USB2.0 ×3, USB3.0 ×1, LAN (RJ45) ×1, HDMI output ×1, Antenna Input (coaxial) ×1


Product key features
Glasses-less 3D technology
3D images are created using parallax, delivering separate images to the left and right eyes by Toshiba’s “face-tracking” and “Active Lens”. 
“Face-tracking” allows the web camera to track the user’s face and recognize of the eyes. “Active Lens”, integrated into the LED panel, controls polarization of light delivered from the panel. These functions secure precise delivery of separate images to each eye, even when the user moves. User can enjoy high-quality 3D images without dedicated glasses if the separate images are properly delivered to each eye.
2D to 3D real-time conversion technology
With SpursEngine, a dedicated image processor with advanced performance gained from the multi-core technology of the Cell Broadband Engine. Dynabook Qosmio T851/D8CR boasts 2D to 3D real-time conversion technology that allows users to enjoy high-quality 3D images created from 2D terrestrial, BS and 110 CS digital broadcasts. 
These 3D images are made more natural and eye-friendly by Toshiba’s newly introduced “Face3D” and “Caption stabilizer”. “Face3D” uses Toshiba’s distinctive high-speed, high-accuracy face detection technology to find faces in 2D images and then applies a human depth template to the image, giving the features more depth and assuring a 3D appearance with graded shading. “Caption stabilizer” detects any captions in the image and keeps it constantly at the front of the image. The depth of the captions stays fixed and easy to read. 
3D Window technology for partial 3D display
“3D Window” is realized by the “Active Lens”, which controls polarization of the light delivered from the LED panel. With Active Lens turned off, the panel delivers normal 2D image; with it turned on, the panel delivers 3D images, separating the images sent to each eye. Active Lens can be turned off and on quickly and locally, which means individual parts of the LED panel can deliver 3D images. Thus the user can enjoy “3D Window” and 2D images shown simultaneously on one display.
The new dynabook Qosmio T851/D8CR will be available in Japan at the end of July.

Toshiba Qosmio F750/F755 Autostereoscopic 3D Laptops This Month

August 12th, 2011 · 25 Comments · Other S3D Tech


Toshiba is set for releasing their first autostereoscopic 3D laptops on the market in the second half of this month, the US version Toshiba Qosmio F755 is set to be available in mid-August for $1,699.99 USD and the European Toshiba Qosmio F750 model is expected by the end of the month in UK with expected price of about £1,300 Pounds. What is the most interesting in these two laptops is the fact that they feature an autostereoscopic 3D display (no special 3D glasses needed) and also use eye-tracking technology for improving the stereoscopic 3D experience. These are the first such laptops coming on the consumer market and LG Electronics is apparently the first company to announce and release a 3D LCD monitor with similar technology – autostereoscopic 3D screen with eye-tracking camera for improved experience and wider viewing angles in stereoscopic 3D mode. This is the 20-inch LG D2000 3D monitor that is currently only available in Korea under the model name LG DX2000 and is expected to be available later this year on other markets as well.
Toshiba is talking about “Active Lens” technology and also a “double parallax image display” for their 3D display which is apparently using switchable lenticular arrays of lenses and LG is talking about “glasses-free parallax barrier” technology for their 3D monitor which is apparently a switchable parallax barrier (although we may as well have the same technology on both). The common thing here is the ability to switch on and off the used technology for providing the stereo 3D effect on demand and thus have a display work in both 2D and 3D mode, depending on what content the user wants to watch (two states – disabled, meaning fully transparent with both eyes seeing the same image and enabled, meaning that each eye sees different image). This however is nothing new as both these technologies have been used a lot by different products for offering autostereoscopic 3D displays for different devices. These solutions however offer only a single or just a few viewing positions that the user needs to be located at in order to be able to see the stereo 3D effect, so in order to overcome this limitation a way to know the exact position of the user is needed. The simple solution for achieving that goal is to add in a camera that tracks the user head movement and more specifically his eyes (not the movement of the eyes, but the eyes themselves in order to track the position of the face)…
Based on the current position of the user’s face the display needs to be able to dynamically readjust the stereo 3D image on the display in order to ensure the best stereo 3D experience for the user watching and to provide seamless transition over a wider viewing angle and not just a few viewing position. Unfortunately neither Toshiba, not LG Electronics give a more detailed description on what and how this adjustment based on the user position is being done, so we’ll have to wait for some more detailed reviews. I still haven’t been able to see the Toshiba Qosmio F750 or F755 live in order to be able to share some feedback, but from what I’ve been reading so far pretty much everyone is complaining that it is not working perfect. There seems to be some delay not in the face tracking, but in readjusting the 3D image displayed on the screen (the left/right pair) and also from seeing more crosstalk, if you’ve been able to personally see it in action you are welcome to share your feedback or any extra information you may have. The clear disadvantage of using this autostereoscopic 3D technology with face-tracking is that you can only have the display optimized for use with just one person as the camera will track only one face, something that may be OK for a 3D-capable laptop, but not as much for a 3D monitor.
Toshiba’s Qosmio F750 and F755 will also feature 2D to 3D real-time conversion technology for movies on DVD Video and normal videos, unfortunately no support for conversion of normal Blu-ray movies to 3D is being offered. You can of course also play Blu-ray 3D movies thanks to the integrated Blu-ray optical drive and the bundled player, and not only on the laptop’s 3D display, but also on an external 3D HDTV for example by using the HDMI 1.4 video output of the laptop. Stereoscopic 3D gaming on the other hand is a bit unclear at the moment, both laptops will feature an Nvidia GeForce 540M graphics card, certainly not the most powerful one for mobile gaming, but not that bad either, the actual problem however lies elsewhere. Due to the fact that Nvidia’s 3D Vision technology is designed for use with active shutter glasses and 120Hz LCD monitors it may not yet be supported on this laptop, but there is talk for a while that such a support may be available later this year. On the other hand you get 3DTV Play support available right from the start should you want to use the laptop with a 3D HDTV.
Another thing that you may find interesting about these new 3D laptops from Toshiba is the fact that they may feature 120Hz LCD displays on top of the autostereoscopic 3D support, there was information about the F750 model that it is with a 120Hz LCD panel, but no mention of that in the official data available for the F755. Toshiba however promotes another 3D-related feature a lot as a first for their solution, the ability to have both 2D and stereo 3D images displayed on the screen at the same time and this is indeed something new for autostereoscopic displays. Usually you have the whole parallax barrier or lenses active all at once for full-screen 3D or have them all deactivated when in normal 2D mode, but with the new Toshiba 3D laptops you can apparently control them independently for different parts of the screen. Now, this may sound very cool – watching a 3D movie (or playing a game in stereo 3D mode) in a window while browsing the web in 2D or working on a document, however it will be harder on the eyes moving between the two and even more distracting doing two such things at the same time. So that extra feature in reality might turn out to be not that useful… the same way as using the face-tracking feature while traveling in a moving vehicle and the laptop shaking and trying to constantly readjust the 3D image on the screen. So for now I would not advice you to jump right into buying any of these laptops, no matter how attractive their features may sound, better wait a bit more after they get released and obtain more feedback from users and reviewers of the final products.

Autostereoscopy - Wikipedia, the free encyclopedia

Autostereoscopy is any method of displaying stereoscopic images (adding perception of 3D depth) without the use of special headgear or glasses on the part of the viewer. Because headgear is not required, it is also called "glasses-free 3D" or "glasses-less 3D". The technology also includes two broad approaches used in some of them to accommodate motion parallax and wider viewing angles: those that use eye-tracking, and those that display multiple views so that the display does not need to sense where the viewers' eyes are located.[1] Examples of autostereoscopic displays include parallax barrier, lenticular, volumetric, electro-holographic, and light field displays.


Comparison of parallax-barrier and lenticular autostereoscopic displays. Note: The figure is not to scale.


A disadvantage of the parallax barrier is that because each eye is allowed to see only half the pixels, light travelling in the “wrong” direction – i.e. from an L stripe to the right eye or from the R stripe to the left eye – is absorbed by the barrier. This cuts the intensity from the display by about half and reduces the resolution. In practical terms, this means that when the display is being used in conventional 2D mode, the parallax barrier should be removed. In most 3D displays, such as Sharp’s 3D mobile phone, this is achieved by making the barrier from a liquid-crystal layer that can be turned on or off electrically.






Glasses-less: Toshiba 3D TV

Glasses-less is ideal: Toshiba develops integral imaging 3D TV

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Toshiba Corp. has developed 3D LCD TVs based on an integral imaging method that presents the 3D effect to viewers without the need for special glasses by combining the computing power of the CELL engine and newly developed 4Kx2K low-temperature polysilicon (LTPS) displays. This advance follows Toshiba's commercialization of conventional 3D TVs requiring glasses. "Since ideally we want to offer 3D TVs that deliver 3D images to viewers without glasses, we deployed our technologies to make it happen," said Masaaki Oosumi, president and CEO of Toshiba Visual Products Company.
101006-toshiba-9-paralax.jpg Toshiba's glasses-less 3D TV generates 9 parallax images
from one original frame to create the 3D effect.


Toshiba will begin marketing two 3D TVs—a 12-inch and a 20-inch model, in Japan in December. The company is also currently exhibiting a prototype 56-inch 3D TV at the CEATEC show in Makuhari.
Toshiba will probably begin releasing products overseas once 40-inch or larger TVs employing the integral imaging method are ready, said Oosumi.
Whereas current 3D TVs deliver the 3D effect by sending two images for the left and right eyes, respectively, the integral 3D system creates the 3D effect by delivering multiple images with different angles. Toshiba's TVs generate nine parallax images from one original frame.
In Japan, NHK and Hitachi are also developing a 3D system based on the integral method. The biggest challenge is to attain high resolution.
Toshiba realized HD resolution (1280x720 pixels) for the 20-inch TV, dubbed the 20GL1. The company attributes this to a new engine and a low-temperature LCD jointly developed with its subsidiary Toshiba Mobile Display, a specialist in LTPS displays.
To achieve a glasses-less performance, the dedicated 3D engine integrates the Cell Broadband Engine and the multi-parallax conversion LSIs for image processing.

101006-toshiba-rgb-array.jpg
101006-toshiba-integral.jpg
The LTPS display has 4Kx2K (8,294,400 pixels) resolution. Each pixel consits of vertically aligned red, green and blue subpixels. Nine pixels in a set function as one virtual pixel for the 3D display. Nine parallax lights from one pixel are dispersed by a lenticular sheet on the display.
The company plans to sell the 20-inch TV at about 240,000 yen (US$2800*) and the 12-inch one at around 120,000 yen. It expects to ship about 1,000 sets a month.
* Original figures are in Japanese yen. The exchange rate is roughly US$1=85 yen.
Toshiba has taken the lead in the introduction of glasses-less 3D TVs, but marketing appears to be almost on a trial basis—limited to Japan and with monthly shipments of only 1,000 units. Oosumi of Toshiba Visual Products conceded that the products are rather technology-oriented and not yet fully optimized in terms of cost and size.
Meanwhile, powerful competitors in Korea are also readying glasses-less 3D TVs. It was reported in June that a concerted government-industry effort is being launched in Korea, including subsidies, to promote the development of glasses-less large-sized 3D TVs and 3D cameras, targeting completion of display development in 2012 and of camera development in 2013.

Glasses Free 3D TV Picture

Review: Toshiba’s glasses-free 3D TVs

Toshiba is the first mayor brand to actually release 3D TVs which do not require glasses. Here we take a look at these TVs and try to decide whether you should already consider buying these TVs or if it’s better to wait or maybe you should stick to 3D TV with glasses.
The technology being used here works by providing two different perspectives of one two dimensional picture. A barrier or lens makes sure your right eye receives only one of the two perspectives and your left eye the other. Your brain then combines the two perspectives into a three dimensional picture.
The following glasses-free 3D TV models are already available on the market.
In October 2010 Toshiba unveiled the first 3D TV models requiring no glasses:
ModelScreen sizeResolutionPrice
Toshiba Regza 20GL120 inch1280×720$2900 (just in Japan)
Toshiba Regza 12GL112 inch466×350$1400 (just in Japan)
3D without glasses technology
Parallax barrier and lenticular screen technology (Source: Wikipedia)
It is a benefit that you can actually see a sharp three dimensional picture without having to wear any special 3D glasses with these TVs.
Since there are no glasses to determine which picture should be received by which eye, other technology is needed. In the models currently available two technologies called Lenticular Lens Technologyand Parallax Barrier Technology are used. This is also known as auto stereoscopy.
It works by providing two different perspectives of one two dimensional picture. A barrier or lens makes sure your right eye receives only one of the two perspectives and your left eye the other. Your brain then combines the two perspectives into a three dimensional picture.
Currently there are some major drawbacks to these TVs. Due to using a combination of the Lenticular Lens Technology and the Parallax Barrier Technology, the picture can only be shown on a smaller screen.
A couple of the other current limitations include a very limited viewing angle of approximately 40 degrees and the need for the views to sit at a fixed distance for a sharp picture. This distance is about 2 feet for a 12 inch TV and 3 feet for the 20 inch TV.
Even if you are able to get all of these things right you still will not get the same effect as you would with glasses. You will not be able to see any bullets flying by or any dinosaurs leaping off the screen without using glasses.
Currently these models are only available in Japan.
In December 2011 Toshiba is about to release the following TV:
ModelScreen sizeResolutionPrice
Toshiba Regza 55X3 (former 55ZL2)55 inch3840×2160$11730 (Japan, December 2011, availability outside of Japan unknown)
This glasses-free model uses the same technology as the previously mentioned TVs, but with a few tricks. Toshiba managed to get the effect on a screen size of a whopping 55 inches, which is a huge improvement over 12 and 20 inches.
This is accomplished partially by a technology called the Head Tracking 3D Technology. This Technology consists of a camera that determines the different viewer positions, and enables everyone to get the same 3D effect by sending two slightly different pictures to the respective left and right eyes of each individual viewer.
This may save some of the problems previously mentioned. However, one negative is that the perceived 3D effect only seems to go in depth and not very much. So there won’t be anything flying out of your TV.
Toshiba plans on continuing their line of 3D TVs without glasses and delivering glasses-free 3D TV worldwide by 2015.

Say Good Bye to 3D Glasses with New Parallax Barrier Technology

Are you currently frustrated putting on three dimensional glasses if you watch three dimensional movies and playing games? For those individuals who say yes for above question this is a new technology where individuals four eye watching could be prevented. Manufacturers and Toshiba ‘re going allow it to be alive with glasses-free 3-D to portable products.Superbly animated figures appear to become jumping from the overall game player I’m holding. Planes and cars are swooping toward me so well which i’m really flinching. The graphics are detailed the colours are natural. I’ve didn’t have a much better 3-D experience, and here’s the good thing: This handheld, multidimensional marvel, a prototype from 3M, doesn’t require me to put on individuals cumbersome, chunky 3-D eyeglasses.
New glasses-free 3-D products are going to hit the industry, as well as their backers are wishing they’ll make three dimensional glasses as obsolete as Smell-O-Vision. These devices, referred to as “autostereo” to differentiate them in the kind needing eyeglasses, includes not just video games such as the one I’ve been having fun with but additionally cameras, mobile phones, and tablet computer systems. One of the primary is going to be autostereo 3-D Televisions, at the moment striking stores in Japan, and Manufacturers’s 3DS handheld gaming system, due for release worldwide early the coming year.
clip image002 thumb Say Good Bye to 3D Glasses with New Parallax Barrier Technology

PRINCIPLE OF three dimensional DISPLAY:

To see 3d, an individual’s eyes must see different, slightly unaligned images. Within the real life, the spacing between your eyes makes which happen naturally. On the video screen, it’s not too simple one display in some way needs to present another and separate view to every eye. Some systems handle this concern by interspersing the right and left sights they’re known as multiplexed. Others, known as consecutive, alternate right and left sights. Regardless of the approach, the shows then use optical or technological methods to direct the right view towards the correct eye.
For instance, the bulkiest three dimensional glasses combined with presently available 3-D Televisions are active-shutter glasses. They contain some miniature LCD sections that synchronize using the large LCD screen within the TV. Once the primary screen is showing a picture destined for the right eye, a liquid-very shutter within the left lens from the glasses makes that lens opaque, and the other way around. This consecutive system switches between images intended for each eye a large number of occasions another, developing a smooth 3-D effect.
clip image004 thumb Say Good Bye to 3D Glasses with New Parallax Barrier Technology

Principle of Manufacturers and Toshiba for glasses free 3-D technology is :

The Manufacturers 3DS’s autostereo screen, produced by Sharp, utilizes a multiplexed “parallax barrier” technology. This process lays another layer of liquid deposits alongside a conventional LCD and it is backlight. This extra layer produces thin vertical strips that block a few of the light and direct the rest of the light alternately towards the right and left eyes, developing a 3-D effect for any single viewer in a set distance, usually around 30 centimeters.
clip image005 thumb Say Good Bye to 3D Glasses with New Parallax Barrier Technology
Parallax barrier technology comes with a couple of problems. Since the multiple layers of deposits prevent some light from reaching the consumer, dealing with a suitable degree of brightness means turning in the backlight, drawing up energy and rapidly draining batteries in portable products. And since each eye sees only half a screen’s total pixels, the strategy cuts the effective resolution in two. So producers must choose from a presentation of normal resolution and brightness—and suffer dull, low-resolution 3-D graphics—or upgrade to some better, greater resolution screen that’s also pricey and energy hungry.
Manufacturers split the main difference using its new console, thumping the brightness up but keeping the resolution relatively low. The 3DS comes with an 800- by 240-pixel screen that provides 400- by 240-pixel sights to every eye. Although this is one step up in the 256-by-192 screen of their predecessor, the Manufacturers Nintendo dsi, it is only one-sixth the resolution located on the similarly sized Apple apple iphone 4. Quite simply, you wouldn’t wish to watch a movie—or even notice a photo slideshow—on the 3DS.
Parallax barrier shows also provide sensitive geometries that deliver optimum 3-D effects limited to a specific eye-separation distance—as close as you possibly can towards the record average of 65 millimeters. These shows will also be updated for any specific distance from screen to eye, using the 3-D effect diminishing in the event that distance is off by less than 5 centimeters. This distance sensitivity is a smaller amount of an problem for handheld products than free standing shows.
There-forefront we are able to enjoy 3-D without glasses…….Technology Rocks……..