Presentation DIP – 3D Stereoscopy
User Experience – Melanie Crouch
Polarized 3D glasses create the illusion of three-dimensional images by restricting the light
that reaches each eye, an example of stereoscopy which exploits the polarization of light.
To present a stereoscopic motion picture, two images are projected superimposed onto the
same screen through different polarizing filters. The viewer wears low-cost eyeglasses which
also contain a pair of different polarizing filters. As each filter passes only that light which is
similarly polarized and blocks the light polarized in the opposite direction, each eye sees a
different image. This is used to produce a three-dimensional effect by projecting the same
scene into both eyes, but depicted from slightly different perspectives. Since no head tracking
is involved, several people can view the stereoscopic images at the same time.
Types of 3D Glasses:
Linearly Polarized glasses
To present a stereoscopic motion picture, two images are projected superimposed onto the
same screen through orthogonal polarizing filters (Usually at 45 and 135 degrees)[1]. The
viewer wears linearly polarized eyeglasses which also contain a pair of orthogonal polarizing
filters oriented the same as the projector.
Linearly polarized glasses require the viewer to keep his head level, as tilting of the viewing
filters will cause the images of the left and right channels to bleed over to the opposite
channel. This can make prolonged viewing uncomfortable as head movement is limited to
maintain the 3D effect.
A linear polarizer converts an unpolarized beam into one with a single linear polarization. The
vertical components of all waves are transmitted, while the horizontal components are
absorbed and reflected.
Circularly Polarized glasses
The viewer wears eyeglasses which contain a pair of analyzing filters (circular polarizers
mounted in reverse) of opposite handedness. Light that is left-circularly polarized is blocked
by the right-handed analyzer, while right-circularly polarized light is extinguished by the lefthanded analyzer. The result is similar to that of steroscopic viewing using linearly polarized
glasses, except the viewer can tilt his or her head and still maintain left/right separation.
Advantages and disadvantages
Compared to anaglyph images, the use of polarized 3D glasses produces a full-color image
that is considerably more comfortable to watch and is not subject to binocular rivalry.
However, it requires a significant increase in expense: even the low cost polarized glasses
typically cost 50% more than comparable red-cyan filters[6], and while anaglyph 3-D films can
be printed on one line of film, a polarized film was often done with a special set up that uses
two projectors. The use of multiple projectors also raises issues with synchronization, and a
poorly synchronized film would negate any increased comfort from the use of polarization.
This problem was solved by a number of single strip polarized systems which were standard
in the 1980s.
Particularly with the linear polarization schemes popular since the 1950s, the use of linear
polarization meant that a level head was required for any sort of comfortable viewing; any
effort to tilt the head sideways would result in the polarization failing, ghosting, and both eyes
seeing both images. Circular polarization has alleviated this problem.
1. Technology has brought virtual worlds into our computers for many years. Soon, virtual
reality (VR) will be in our living rooms. The underground effort that has been an experimental
fantasy for decades is becoming more mainstream. VRGs are headed to your game system!
VRGs or VR glasses (also known as Virtual Reality glasses or goggles) takes home
entertainment and gaming to the next level. While earlier models of the vr goggles were bulky
and didn't provide a realistic 3D augmented experience. Today's products are more improved
and light weight with advanced capabilities.
2. Plastic 3D Glasses Pro-X Professional Anaglyph 3D Glasses. More contemporary style for
gamers and the like. Optical quality, cast acrylic lenses tinted to exacting color standards.
Virtually eliminates ghost images and other annoying visual distortions. Lenses are a hybrid
color cross between blue and cyan. Includes soft rubber nose and temple pads for extreme
comfort and extended ware. Will not fit over most corrective glasses. Choose Pro-X Plastic
3D Glasses for viewing the recently released 3D movies on DVD and Blue Ray Disk
likeJonas Brothers: The 3-D Concert Experience, Hannah Montana 3D, Polar Express, Shrek
3D and Barbie 3D, Spy Kids 3D Game Over and The Adventures Of Shark Boy And Lava
Girl,
Linear Polarized 3D Glasses for IMAX movies and 3D Display
These glasses are for use in IMAX movie theatres and NOT for viewing IMAX films at home.
For home viewing, other types of glasses are needed. By bringing your own glasses to the
IMAX theatre
you avoid having to use worn or scratched lenses, thus making your experience at the theatre
more enjoyable.
Terminator Style - Polarized Glasses Our Linear Polarized Lenses are available in a superior
quality, Terminator-style black plastic frame. These glasses wrap around for that really "cool"
look. These reusable plastic polarized glasses with folding temples, feature superior quality
10-ml polarizer film. Polarized glasses contain light gray filters for viewing slide shows, multimedia displays, concerts, movies, and ride simulators.
Linear Polarized Glasses are the general purpose glasses used for polarized projection of
slide shows, multi-media displays, concerts, movies, simulator rides, and viewing
vectographs. Linear polarized glasses have the left and right axis at 45 degrees and 135
degrees (perpendicular to each other), and a standard transmission of 37%.
E-D Wireless
3D Glasses for the PC
Become immersed in unbelievably real 3D gaming and graphic environments as our patented
stereoscopic 3D glasses instantly create a truly 3-dimensional viewing experience with all of
your favorite gaming titles. You have to see to believe--thrills guaranteed! The E-DTM 3-D
glasses instantly convert virtually all of your existing PC video game titles into true 3D. That
means a real sense of depth and distance as you're taking aim at the enemy battalion
approaching, trying to find the apex of the next turn, or coming in for a carrier landing in your
F-14. It's why so many customers report improved game play performance when using our
glasses in addition to stunning scenery and visuals. Installation is a snap with no USB or
serial ports required and nothing internal. Just install our patented software one time, plug in
our adapter to any standard PC, and we guarantee you'll experience the best gaming
graphics EVER. Using an infrared transmitter for wire-free operation of the glasses, this
system provides superior ease-of use. A dual-emitter transmitter is utilized to give the widest
viewing angle and range available and is used to beam a signal to perfectly synchronize the
refresh rate of your monitor with your glasses. Additional users need only an additional set of
eyewear to simultaneoThe glasses use standard inexpensive lithium cell batteries found at
any electronics store and provide 50-100 hours of usage (included). Comes with glasses,
video synchronization adapter, infra-red transmitter, and our special software CD to turn your
games into amazing 3Dusly view 3D
• Adjust size easily for superior comfort
• 50-100 hours of wireless 3D (batteries included)
•
10' (3m) wireless range
• Toggle 3D gaming mode on and off with the touch of a button
•
Exclusive support for all video cards and both CRT and LCD monitors.
NVIDIA GeForce 3D Stereo Glasses
NVIDIA® 3D Vision™ technology is a combination of Graphics Processor Units (GPU),
specialized 3D glasses, software, and certified displays and projectors that deliver an
immersive 3D experience on your PC or workstation.
Nvidia has a pair of 3D eyewear that displays video games in stunning 3D vision. The 3D
glasses feature enhanced optics for crystal-clear, flicker-free stereoscopic 3D gaming and
delivers 60Hz per eye and ultrawide viewing angles. Designed for use with DLP 1080p
HDTVs, pure 120Hz LCD monitors and DepthQ HD 3 projectors for crystal-clear,
stereoscopic 3D gaming. Find out more about the NVIDIA GeForce 3D Stereo Glasses from
Best Buy.
View your video games in stunning 3D vision with these glasses that feature enhanced optics
for crystal-clear, flicker-free stereoscopic 3D gaming. Delivers 60Hz per eye and ultrawide
viewing angles. Designed for use with DLP 1080p HDTVs, pure 120Hz LCD monitors and
DepthQ HD 3 projectors for crystal-clear, stereoscopic 3D gaming. Buy from Bestbuy.com
All PlayStation 3 systems are already equipped with everything they need to play
stereoscopic 3D games. Thanks to a free firmware update released this past April, the PS3
system is the only console on the market that can support full stereoscopic 3D gaming —
right from your living room, and with no additional charge.
Today, our sister company Sony Electronics announced its 3D capable BRAVIA HDTVs
are now available for pre-sale and will ship to retailers later this month. There are a broad
range of models available in different screen sizes, some packaged with active glasses
and others without, giving consumers the option to choose which 3D entertainment
solution works for them. For more information, click here.
Review of NVIDIA 3D Glasses
In this image the right lens is essentially blacked out blocking the right
eye from seeing the screen leaving the left eye open.
The most recent and popular stereo 3D format uses polarization in much the
same way the anaglyph works. Instead of using colored hues to filter the image
for each eye, in this method the user is wearing mostly-translucent glasses that
have polarization filters on each side, slightly varied in a way to allow each eye to
see a unique image on the display.
When a frame with the left eye polarization is displayed then the left lens on the
glasses effectively blocks the image from coming through, leaving the right eye to
see the image on the screen. The downside to this type of stereo 3D method is
that issues can arise based on the users head position and orientation to the
screen – the polarization filters are less effective at varying angles.
The most effective, and most expensive, method for producing stereo 3D image
is to use active glasses that “turn off” each eye in time with a display’s refresh
rate. Each lens in the glasses is effectively a 1 pixel LCD screen that is turned off
(black) or on (clear) depending on which eye should see the image displayed on
the screen.
The key to an active glasses solution is that the lenses must be properly
synchronized with the display requiring some form of communication between the
two devices. When the left eye frame is shown on the screen then the left lens
must be completely open and during the time the screen refreshes with the next
frame for the right eye the glasses must also switch lens opacity. This
communication could be done with a cable of some kind or using infrared signals,
as the NVIDIA solution we are looking at today uses.
NVIDIA has its own take on 3D technology, but unlike Intel the GeForce
technology focuses on gaming and uses a much higher quality viewing
solution. Unfortunately that also means it is much more expensive – you won’t
find anyone giving away NVIDIA’s 3D Vision glasses anywhere. But what I
expected to be a mostly gimmicky attempt to get some more PC gamers’ money
has impressed me beyond my expectations.
Alioscopy screens
3D is spectacular, eye catching and entertaining, but it can also be used as a powerful
decision making tool. Alioscopy 3D screens free viewers from annoying eyewear. They can
amaze, attract and grasp the attention of the public as well as enhance the understanding of
complex images in a demanding professional environment.
Alioscopy 3D screens deliver an impressive immersive experience, with unmatched 3D popout and depth effects on video screens. They display sharp and bright 3D images, while
remaining 2D compatible. Out-of-Home communication, advertizing, marketing,special events
scientific visualization can now benefit from the striking impact of 3D. This groundbreaking
technology opens new opportunities in many markets and industries.
Alongside its range of glasses-free 3D displays, Alioscopy provides innovative and creative
3D services, including content creation, training and support, as well as 3D software and
licensing. Alioscopy is also supported by a growing community of computer artists around the
world, with broad 3D creative skills.
Benefits of the technology
• The array of micro-lenses on the display replaces the eyewear generally
required to enjoy 3D.
• Displaying 8 points of view enables multiple viewers to stand freely where they
please.
• The 42" or 47" display can be seen anywhere from 6’ to 30’, with an ideal
viewing distance of 13’, spread over a 100° angle.
• The display doesn’t distort content when moving in front of it.
• The lenticular lens array doesn’t alter brightness and colors and shows beautiful
crisp images.
The display can show standard 2D content losslessly, granting backward
compatibility with all existing sources.
CubicVue is an optical filter that allows viewers to experience
stereoscopic 3D content on any flat panel display, without the use
of clunky 3D glasses. Unlike other glasses-free 3D technologies,
CubicVue’s patent-pending color filter barrier pattern does not
degrade image resolution. It may be layered over existing screens
as an attachment or may be embedded in displays, making it the
perfect way to add stereoscopic 3D to any display, gaming device, or
portable media player
Xyz TV
To observe realistic 3D, our left eye needs to see a slightly different image than our right eye.
When you close 1 eye, it's impossible to see real depth and indicate distances. Our xyZ 3D
Displays make it possible to send different images to your left and right eye. This is done by
our special high quality lenticular lense. This lense handles the allocation of the image on
subpixel
level.
Our B2B 3D displays are currently using a 8-view system, which in our opinion gives the best
multiviewer result. Our eyes will see only 2 views at the time, making it possible to even look
around objects that are projected in front of the display. Special software and algorithms
make sure every (sub)pixel will be send to the display in the appropriate way to view a correct
3D effect.
Future of 3D gaming
PC magazine news on the new Nintendo 3DS – 3D gaming on a handheld device
The new device will play 3D games, without the aid of special glasses.
The Nintendo 3DS (ニンテンドー3DS Nintendō Surī Dī Esu?) is an upcoming portable game
console by Nintendo, which can produce "3D effects without the need for any special glasses"
via a process called autostereoscopy.[6] It will be released in Japan on February 26, 2011 for
¥25,000, and will succeed the Nintendo DS series of handhelds,[6] which primarily shares the
handheld console market with Sony's PSP.[7] The Nintendo 3DS will feature backward
compatibility with Nintendo DS series software, including Nintendo DSi software.[6]
Announcing the device on March 23, 2010, Nintendo officially unveiled the device at the 2010
Electronic Entertainment Expo (E3)[6] on June 15,[8] with the company inviting attendees to
play with the console.[9] According to industry analysts, the timing of Nintendo's original
announcement, which had drawn attention away from the launch of the company's still-new
Nintendo DSi XL handheld, was likely intended to preempt impending news leaks about the
product by the Japanese press.[10]