1. User profile and justification
Age: 12 to 50
Gender : male > famale
Education : High school or Higher
Occupation: student, white collar, IT etc
Family income: 20000 to 100000
Personality : Easy to accept new things,
Loves science and technology ,
Used to learn from the internet
(facebook, blogger, twitter etc)
Hobbies : Seeing films,
Reading science magazines
Internet Surfing, etc
My blog is about a most updated movie technology. Commonly, the people pay attention to those kind of topic is always young and studious, they are easy and willing to accept new things. Thay may have good education backgrounds to understand and handle the physic and mathmatic concepts in the articles.
At the same time, no matter the reader is a student or a company staff, their family income should be at least "OK", so they can go to movie theatre and enjoy the 3D film often.
And last but not least, They must fans of seeing films!
2. brief summary
In my blog, I talked about the 3D film technology, I mainly wrote 5 articles to tell the readers the prienciples and special designs about this tech. After telling my readers about the concept and theories, I pick up some examples and critical comments to deeply introduce the pros and cons about 3D film, and finally draw a conlcltion, as well as the future perspectives.
In order to catch my readers and keep them pay attention to my blog, I keep on uploading the newest informations and news about 3D technology and 3D films, so that people may go to my blog again and again to see whether there are some new matetials or not.
3. The approaches/ tools/ experience you use/have to prepare your blog
I love seeing film, especially 3D movies, and I am also a student studing CS cources, So I decided to choose a topic which can cover them all, that is _ the 3D films.
Before I started working on designing on my blog, I surfed the internet everyday to read the related articles and downloading useful resouces. I went to wikipedia to find the basic defination about 3D film, appriciated others blogs or websites to collect the ideas and asked with my friends to give comments.
After finishing all these works, after considerate again and again, I decided to start my own work!
4. The approaches /strategies you use to attract /retain reader
a, I put beautiful and changeable 3D pictures and film posters in my blog to attract people.
b, I added a short video after every teaching articles as a "Fun Time", to make people feel free and relax
c, I put several useful links and resources at the end of every article, so that readers can find more if they want to click them
d, I carefully designed the name of all the links, the titles of all the articles,the keywords of each page and the aggrvation about my blog, so that my rank for the search engine might be high, that makes web users more easily to find my blog.
e, I keep on updating the neweast informations and news about 3D technology and 3D films, so that people may go to my blog again and again to see whether there are some new matetials or not.
5. Self-reflection on the assignment
I think I really pay much effort on my assignment to make reader love my blog, I learned a lot from it, not only the concepts about the technology, the way of making a good blog, but also to share the things I love with others, I enjoy this work and hope everybody like my " FANTASTIC 3D FILM" !!!!!!!
2011年3月8日星期二
2011年3月3日星期四
[Reference] Want to know more about 3D films?
3-D Video in streaming
3-D in streaming WEBSITE
"How They Make Movies Leap At You" , April 1953, Popular Science
Early article on the technology then of 3-D movies
How 3D movies work: a diagram
Diagrams show how 3D movies work
The making of a 16 mm 3D film
16mm 3D film
[News/Art] 3D opera Film
Is there an audience for 3-D opera films? It's possible that both traditionalists and special-effects buffs might stay home, for different reasons. That's a shame, because Carmen in 3D, a joint production of Real D and the Royal Opera House, is genuinely entertaining, employing the special effect with restraint.
The filmmakers aren't out to provide eye candy, though there's some of that (the rose petals thrown at the toreadors, for instance, appear to swirl out into the audience). Their goal was to lend the depth and rounding of a live performance to a movie, and they've wisely erred on the conservative side in choosing how to employ the 3-D.
This is a solid but traditional production of a familiar piece, and it probably won't bring the cognoscente to their knees. Yes, Carmen is a warhorse, but with good reason, and it's much easier to roll your eyes about the choice of an accessible work if someone else is taking the financial risk.
This Carmen, staged last year in Covent Garden in London, is visually impressive, employing lots of earth tones (except for the scenes in the smugglers' camp) and giving much attention to detail — the crowd scenes for example, are full of lively business. The production was a grand-scale undertaking, as particularly evident in the big set pieces, including the entrance of the cigarette factory girls and the evening at Lillas Pastia's inn.
The large cast is nicely led by Christine Rice as the Gypsy temptress Carmen and Bryan Hymel as her hapless lover/victim, Don Jose, with admirable support from Maija Kovalevska as Don Jose's hometown flame Micaëla and Aris Argiris as the swaggering bullfighter Escamillo. The singing by these four impressed my untrained ears, and Rice is a forceful actress.
The opera was directed by Francesca Zambello, the film by Julian Napier. The production was designed by Tanya McCallin and the orchestra conducted by Constantin Carydis.
The 170-minute run time of Carmen in 3D includes a 20-minute intermission.
[3D opera film]
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[Nwes/Tech] DIRECTV Lines Up More 3D Programming
EL SEGUNDO: The latest 3D additions to the DIRECTV lineup include the exclusive U.S. broadcast of the full-length 3D opera Donizetti's Lucrezia Borgia, along with several 3D Hollywood movies.
Donizetti's Lucrezia Borgia was directed by British filmmaker Mike Figgis (Leaving Las Vegas). It features one of opera's most notorious femme fatales in the title role, weaving together a tale of murder, torture and incest among of one history's first crime families. The 3D production of Lucrezia Borgia, a collaboration between Sky Arts and ENO, was filmed live on February 23 at the London Coliseum and will be available on DIRECTV CINEMA starting this April.
DIRECTV Cinema is also adding a variety of Hollywood movies in 3D. This includes Piranha 3D, Jackass 3D, Tangled 3D and Tron: Legacy 3D.
"We are constantly looking for ways to provide our 3D fans with the most compelling lineup of 3D programming available," said Derek Chang, the executive VP of content strategy and development at DIRECTV. "Mike Figgis' unique production of Donizetti's Lucrezia Borgia and Hollywood hits like Tangled and Tron: Legacy 3D are the perfect content to showcase 3D technology at its best."
[DIRECTV]
[News/Movie] Star Wars: The Phantom Menace 3D' Gets A Release Date
George Lucas is preparing to add two whole dimensions to his paper thin snorefest Star Wars: Episode I - The Phantom Menace.
That's right, the pop culture pariah has decided to release his critically maligned and culturally abhorred prequel in 3D on February 12th, 2012. The only thing we like about this news is that 2-12-12 is a palindrome.
Here are some of the discouraging statements made by Hollywood Reporter in their story:
QUOTE: "LucasFilm believes that Star Wars is perfectly suited to be seen in 3D."
TRANSLATION: Re-releasing the films with an unnecessary mark up in ticket prices is a license to print money.
QUOTE: "Lucas hopes that releasing the film early in the year, outside of the summer blockbuster season, will give it an open run at the box office and also set up the opportunity to sell merchandise through the balance of the year."
TRANSLATION: We have a lot of leftover merchandise from The Phantom Menace that nobody bought, and re-releasing the film will set up the opportunity to get rid of our unwanted inventory without firing up the furnaces.
Also, Lucas? February is no longer the box office dead zone it was when you re-released the original trilogy back in the 1990's. You will not have an open run at the box office, unless the industry incorrectly surmises that a movie that nobody liked the first time and that audiences only saw because of its event status will somehow be a box office draw the second time, and decide not to compete with you. Doubtless that's why you're making this announcement a year in advance.
Hollywood, don't buy this crap. Go about your business as usual. You have no reason to be concerned.
If successful, the 3D re-release of Star Wars: Episode I - The Phantom Menace" will pave the way for each subsequent Star Wars movie to be released in 3D every following year. Meaning that even if you just want to see the original trilogy in theaters again, you'll not only have to wait five years, but you'll actually have to buy tickets to the crappy movies beforehand. Oh goody, what incentive.
Seriously, we think there needs be a variation on Godwin's Law which states that as any conversation grows longer, the probability of a comparison involving the crappiness of the Star Wars sequels, particularly The Phantom Menace, approaches 1.
Crave Online will be back with more Phantom Menace news as it makes no sense whatsoever and crushes our souls in a trash compactor.
[Star wars]
[News/Beauty] Perfect Makeup Everytime
- Technology that takes a 3D image of your face and measures your complexion, shadows and lines could help you with your makeup.
- The computer can also tell you if your tried-and-tested make-up combinations are actually right for your face.
- The system can also be modified to provide cosmetics advice in different situations.
Ever wish you had your own personal makeup artist? That dream could soon be a reality with a computer that scans your face and suggests the perfect personalized makeup combination.
The technology, showcased at CeBIT, the world's biggest high-tech fair, takes a 3D image of your face and measures your complexion, shadows and lines.
Specially designed computer software then matches your face to 60 pre-programmed models and advises how much makeup should be applied to which parts of your face based on professional make-overs conducted on the models.
The computer can also tell you if your tried-and-tested makeup combinations are actually right for your face, explained Kristina Scherbaum, who developed the program at the prestigious Max Planck Institute.
"We also take into consideration certain personal facial characteristics, like freckles or moles. Furthermore, we can determine whether or not already existing makeup on a woman suits her face," she added.
The software, currently only available for women, is at the research stage at the moment but could easily be adapted for commercial use, said Himangsho Saikia, who designed the interface system.
"Professional makeup is expensive but with this, you could turn on your computer in the morning, use a web-cam and have your make-up done for you," he said.
The system can also be modified to provide cosmetics advice in different situations, such as jazzy make-up for an evening party or more sober for work.
CeBIT is showcasing the latest technology and gadgets from some 4,200 exhibitors and hopes to attract around 350,000 visitors. It runs until March 5.
[News/Tech] Soon, 3D TV without goggles
High-quality video communications capable of supporting flawless video conferencing and home entertainment without goggles could become a reality soon.
The find was a result of research led by Professor Lajos Hanzo, Head of the Communications Research Group in the School of Electronics and Computer Science.
Professor Hanzo and his team are working on systems to support flawless Tele-presence with the aid of three-dimensional (3D) ‘Avatar-style’ stereoscopic video and audio communications. The process involves the conception of stereoscopic video systems that can stream footage in real time to a recipient over wireless networks.
The team at Southampton has recently made substantial investments in 3D cameras and displays as well as in holographic visualization facilities in support of these radical research goals.
“Existing 3D video systems are based on people wearing goggles to view them,” said Professor Hanzo. “Our system is expected to become more ‘immersive’ by dispensing with the inconvenience of wearing goggles.” Part of this process involves the conception of stereoscopic video systems that can stream footage in real time to a recipient over wireless networks.” The other radical objective of the Tele-presence research at Southampton is to conceive more ‘green’ wireless systems, requiring less energy than existing systems.
“The first stage is to conceive flawless, immersive video conferencing concepts and then to transfer the design principles to shirt— pocket— sized compact mobile devices, such as camera—phones, within the next decade,” said Professor Hanzo.
“At the moment, flawless video conferencing is not widespread, since the quality is not up to scratch. We are working to ensure that video is transmitted without errors and we are developing ‘green’ techniques to ensure that less energy is used.” The researchers claim that they are the first group to work on the wireless transmission of holographic video.
They will also popularize these techniques within the framework of their Indian and Chinese research consortia conducting research towards the next generation of wireless systems.
2011年2月22日星期二
Perspectives about 3D Films
Maybe it will be popular in the future:
SINCE it’s quite original when compared with the traditional science. 3D did give us a strong feeling of true world with vivid pictures and video.
SINCE it’s quite original when compared with the traditional science. 3D did give us a strong feeling of true world with vivid pictures and video.
Maybe it will be die out in the future:
SINCE it’s not comfortable for people to watch Film whether wearing glasses. Besides, the price of Film and the basic cost are generally quiet higher than normall films. So the 3D Film need to be improved to satisfied the audience.
SINCE it’s not comfortable for people to watch Film whether wearing glasses. Besides, the price of Film and the basic cost are generally quiet higher than normall films. So the 3D Film need to be improved to satisfied the audience.
With a brief and overall view of the basic information of 3D-Film, we now come to a conclusion that although 3D TV may be popular in the near future, because it is original and has high quality showing the movies and other attractive programs. Effective methods still need to be taken to remove the unhealthy effects with every effort. After all, people in increasing numbers are beginning to attach importance to health. Only when the health-related problems are thoroughly solved, can 3D-Technology invade into the real commercial “crazy”!
Pros and Cons About 3D Film
Advantages
1, Show the movies or images vividly to let the audience be set in the true condition.
Disadvantages:
1, Eyes will be tired after watching 3D Film.
2. High price, 3D Film is still more expensive compared with common Film tickets.
3. May have eye diseases watching 3D Film.
4. Lack resources of 3D.
5,People may more focus on the technology instead of the movie itself.
More Informations
3D film-making addresses accurate presentation of stereopsis but not of accommodation, and therefore is insufficient in providing a complete 3D illusion. However, promising results from research aimed at overcoming this shortcoming were presented at the 2010 Stereoscopic Displays and Applications conference in San Jose, U.S.
Motion sickness, in addition to other health concerns, are more easily induced by 3-D presentations.
Film critic Mark Kermode argued that 3-D adds "not that much" of value to a film, and said that, while he liked Avatar, the many impressive things he saw in the movie had nothing to do with 3-D. Kermode has been an outspoken critic of 3-D film describing the effect as a "nonsense" and recommends using two right or left lenses from the 3-D glasses to cut out the "pointy, pointy 3-D stereoscopic vision", although this technique still does not improve the 30% colour loss from a 3-D film
Film critic Roger Ebert has repeatedly criticized 3-D film as being "too dim" (due to the polarized-light technology using only half the light for each eye), sometimes distracting or even nausea-inducing, and argues that it is an expensive technology that adds nothing of value to the movie-going experience (since 2-D movies already provide a sufficient illusion of 3-D). While Ebert is "not opposed to 3-D as an option", he opposes it as a replacement for traditional film, and prefers 2-D techologies such as MaxiVision48 that improve image area/resolution and frames per second.
2D VS 3D ?
Another major criticism is that many of the movies in 21st century to date were not filmed in 3-D, but converted after filming. Filmmakers who have criticized this process include Michael Bay and James Cameron, the latter whose film Avatar (created in 3-D from the ground up) is largely credited with the revival of 3-D.
Director Christopher Nolan has criticised the notion that traditional film does not allow depth perception, saying "I think it's a misnomer to call it 3D versus 2D. The whole point of cinematic imagery is it's three dimensional... You know 95% of our depth cues come from occlusion, resolution, color and so forth, so the idea of calling a 2D movie a '2D movie' is a little misleading." Nolan also criticised that shooting on the required digital video does not offer a high enough quality image and that 3D cameras cannot be equipped with prime lenses.
*************************************
Relex Time
(iced age4 2010)
1, Show the movies or images vividly to let the audience be set in the true condition.
3,Can swich the 3D to 2D or 2D to 3D and can play both 2D, 3D resouces.
Disadvantages:
1, Eyes will be tired after watching 3D Film.
2. High price, 3D Film is still more expensive compared with common Film tickets.
3. May have eye diseases watching 3D Film.
4. Lack resources of 3D.
5,People may more focus on the technology instead of the movie itself.
More Informations
- Helath Concerns
3D film-making addresses accurate presentation of stereopsis but not of accommodation, and therefore is insufficient in providing a complete 3D illusion. However, promising results from research aimed at overcoming this shortcoming were presented at the 2010 Stereoscopic Displays and Applications conference in San Jose, U.S.
Motion sickness, in addition to other health concerns, are more easily induced by 3-D presentations.
Film critic Mark Kermode argued that 3-D adds "not that much" of value to a film, and said that, while he liked Avatar, the many impressive things he saw in the movie had nothing to do with 3-D. Kermode has been an outspoken critic of 3-D film describing the effect as a "nonsense" and recommends using two right or left lenses from the 3-D glasses to cut out the "pointy, pointy 3-D stereoscopic vision", although this technique still does not improve the 30% colour loss from a 3-D film
Film critic Roger Ebert has repeatedly criticized 3-D film as being "too dim" (due to the polarized-light technology using only half the light for each eye), sometimes distracting or even nausea-inducing, and argues that it is an expensive technology that adds nothing of value to the movie-going experience (since 2-D movies already provide a sufficient illusion of 3-D). While Ebert is "not opposed to 3-D as an option", he opposes it as a replacement for traditional film, and prefers 2-D techologies such as MaxiVision48 that improve image area/resolution and frames per second.
2D VS 3D ?
Another major criticism is that many of the movies in 21st century to date were not filmed in 3-D, but converted after filming. Filmmakers who have criticized this process include Michael Bay and James Cameron, the latter whose film Avatar (created in 3-D from the ground up) is largely credited with the revival of 3-D.
Director Christopher Nolan has criticised the notion that traditional film does not allow depth perception, saying "I think it's a misnomer to call it 3D versus 2D. The whole point of cinematic imagery is it's three dimensional... You know 95% of our depth cues come from occlusion, resolution, color and so forth, so the idea of calling a 2D movie a '2D movie' is a little misleading." Nolan also criticised that shooting on the required digital video does not offer a high enough quality image and that 3D cameras cannot be equipped with prime lenses.
*************************************
Relex Time
(iced age4 2010)
About 3D film glasses
There are three main types of 3D glasses available now. The Red-Cyan glasses and Active-shutter glasses is for TVs while the Polarized glasses is mostly used in the theater.
Red cyan glasses
Active shutter glasses
Holographic system
What worthes expecting most might be a far more advanced 3D technology called holographic system. It is based on the laser and rays to record almost every angle of an object then display it as recorded. This technique totally throw off the glasses burden and demonstrate a fantastic llife-like scene. But it still takes a few years to develope the machines both for recording and displaying.
References :
Red cyan glasses
The Red-Cyan glasses is now commonly used and seen everywhere because it is relatively cheap and easy to make. Only two light filters lens in red and cyan and a spectacle frame are enough.
As the picture shows, the glasses function by filtering the color so that only the red light can go through the cyan side and vice versa. But this type is not of high quality, so it has some problems like low resolution and some degrees of change in color. The much advanced one is the so-called Active-shutter glasses, alse known as Alternate-frame sequencing.
Active shutter glasses
With the help of some wireless transmission media, the glasses and screen have the same alternate-shutting frequency, i.e. 48fps. It is too fast to be detected by humen eyes. The persistence of vision gives us the illusion that the pictures for both eyes are appearing at the same time. So we form a fluent 3D view. The second type comes into the extensive utilization of by some large-scale electric appliance companies such as SONY, Samsung ect.
Holographic system
What worthes expecting most might be a far more advanced 3D technology called holographic system. It is based on the laser and rays to record almost every angle of an object then display it as recorded. This technique totally throw off the glasses burden and demonstrate a fantastic llife-like scene. But it still takes a few years to develope the machines both for recording and displaying.
References :
UPdated 3D technology
basic describtion about 3D technology
classify of 3D glasses
How 3D film works
The working principle we use to make 3D-TV images is exactly the same as our eyes’ working principle. The distance between our eyes enable us to see things in slightly different angles, thus forming two distinct images that can be merged together by our brian.
As soon as the merged picture appears, we get the 3D view. So when making the 3D-TV programs, there are two cameras acting as two eyes.
*More Informations
Anaglyph
Anaglyph images were the earliest method of presenting theatrical 3-D, and the one most commonly associated with stereoscopy by the public at large, mostly because of non theatrical 3D media such as comic books and 3D TV broadcasts, where polarization is not practical. They were made popular because of the ease of their production and exhibition. Though the earliest theatrical presentations were done with this system, most 3D movies from the 50s and 80s were originally shown polarized.
In an anaglyph, the two images are superimposed in an additive light setting through two filters, one red and one cyan. In a subtractive light setting, the two images are printed in the same complementary colors on white paper. Glasses with colored filters in each eye separate the appropriate images by canceling the filter color out and rendering the complementary color black.
Anaglyph images are much easier to view than either parallel sighting or crossed eye stereograms, although the latter types offer bright and accurate color rendering, particularly in the red component, which is muted, or desaturated with even the best color anaglyphs. A compensating technique, commonly known as Anachrome, uses a slightly more transparent cyan filter in the patented glasses associated with the technique. Process reconfigures the typical anaglyph image to have less parallax.
An alternative to the usual red and cyan filter system of anaglyph is ColorCode 3-D, a patented anaglyph system which was invented in order to present an anaglyph image in conjunction with the NTSC television standard, in which the red channel is often compromised. ColorCode uses the complementary colors of yellow and dark blue on-screen, and the colors of the glasses' lenses are amber and dark blue.
The anaglyph 3-D system was the earliest system used in theatrical presentations and requires less specialized hardware.
The polarization 3-D system has been the standard for theatrical presentations since it was used for Bwana Devil in 1952, though early Imax presentations were done using the eclipse system and in the 60s and 70s classic 3D movies were sometimes converted to anaglyph for special presentations. The polarization system has better color fidelity and less ghosting than the anaglyph system.
In the post-'50s era, anaglyph has been used instead of polarization in feature presentations where only part of the movie is in 3D such as in the 3D segment of Freddy's Dead: The Final Nightmare and the 3D segments of Spy Kids 3D.
Anaglyph is also used in printed materials and in 3D TV broadcasts where polarization is not practical. 3D polarized TVs and other displays only became available from several manufacturers in 2008; these generate polarization on the receiving end.
Polarization systems
In the case of RealD a circularly polarizing liquid crystal filter which can switch polarity 144 times per second is placed in front of the projector lens. Only one projector is needed, as the left and right eye images are displayed alternately. Sony features a new system called RealD XLS, which shows both circular polarized images simultaneously: a single 4K projector (4096×2160 resolution) displays both 2K images (2048×858 resolution) on top of each other at the same time, a special lens attachment polarizes and projects the images.
Thomson Technicolor has produced a system using a split lens which allows traditional 35mm projectors to be adapted to project in 3D using over/under 35mm film. This is a very cost-effective way to convert a screen as all that is needed is the lens and metallic (silver) screen rather than converting entirely to digital.A metallic screen is necessary for these systems as reflection from non metallic surfaces destroys the polarization of the light.
Polarized stereoscopic pictures have been around since 1936, when Edwin H. Land first applied it to motion pictures. The so called "3-D movie craze" in the years 1952 through 1955 was almost entirely offered in theaters using linear polarizing projection and glasses. Only a minute amount of the total 3D films shown in the period used the anaglyph color filter method. Linear polarization was likewise used with consumer level stereo projectors. Polarization was also used during the 3D revival of the 80s.
In the 2000s, computer animation, competition from DVDs and other media, digital projection, and the use of sophisticated IMAX 70mm film projectors, have created an opportunity for a new wave of polarized 3D films.
Eclipse method
With the eclipse method, a mechanical shutter blocks light from each appropriate eye when the converse eye's image is projected on the screen. The projector alternates between left and right images, and opens and closes the shutters in the glasses or viewer in synchronization with the images on the screen. This was the basis of the Teleview system which was used briefly in 1922.
A variation on the eclipse method is used in LCD shutter glasses. Glasses containing liquid crystal that will let light through in synchronization with the images on the computer display or TV, using the concept of alternate-frame sequencing. This is the method used by nVidia, XpanD 3D, and earlier IMAX systems. A drawback of this method is the need for each person viewing to wear expensive, electronic glasses that must be synchronized with the display system using a wireless signal or attached wire. The shutterglasses are heavier than most polarized glasses though lighter models are no heavier than some sunglasses or deluxe polarized glasses.
Pulfrich
The Pulfrich effect is based on the phenomenon of the human eye processing images more slowly when there is less light, as when looking through a dark lens.
Imagine a camera which starts at position X and moves right to position Y as shown by the arrow. If a viewer watches this segment with a dark lens over the left eye, then when the right eye sees the image recorded when the camera is at Y, the left eye will be a few milliseconds behind and will still be seeing the image recorded at X, thus creating the necessary parallax to generate right and left eye views and 3D perception, much the same as when still pictures are generated by shifting a single camera. The intensity of this effect will depend on how fast the camera is moving relative to the distance to the objects; greater speed creates greater parallax.
A similar effect can be achieved by using a stationary camera and continuously rotating an otherwise stationary object. If the movement stops, the eye looking through the dark lens (which could be either eye depending on the direction the camera is moving) will "catch up" and the effect will disappear. One advantage of this system is that people not wearing the glasses will see a perfectly normal picture.
Of course, incidental movement of objects will create spurious artifacts, and these incidental effects will be seen as artificial depth not related to actual depth in the scene. Unfortunately, many of the applications of pulfrich involve deliberately causing just this sort of effect and this has given the technique a bad reputation. When the only movement is lateral movement of the camera then the effect is as real as any other form of stereoscopy, but this seldom happens except in highly contrived situations.
Though pulfrich has been used often on TV and in computer games, it is rarely if ever used in theatrical presentations.
New systems without glasses
There is increasing emergence of new 3-D viewing systems which do not require the use of special viewing glasses. These systems are referred to as Autostereoscopic displays. They were initially developed by Sharp.
The first Autostereoscopic LCD displays first appeared on the Sharp Actius RD3D notebook and the first LCD monitor was shipped by Sharp in 2004 for the professional market. Both have since been discontinued. The first Autostereoscopic mobile phone was launched by Hitachi in 2009 in Japan and in 2010 China mobile is to launch its version. Manufacturing trials are being run for TV. For the gaming market the first probable commercial application will be handheld gaming devices, such as the Nintendo 3DS. These systems do not yet appear to be applicable to theatrical presentations.
********************************************
Relax Time
（Tangled 2011）
As soon as the merged picture appears, we get the 3D view. So when making the 3D-TV programs, there are two cameras acting as two eyes.
But how to make sure that the single very eye only see the very picture meant for it? Then we need to use 3D glasses in most cases (We will talk about the 3D glasses later).
*More Informations
Anaglyph
Anaglyph images were the earliest method of presenting theatrical 3-D, and the one most commonly associated with stereoscopy by the public at large, mostly because of non theatrical 3D media such as comic books and 3D TV broadcasts, where polarization is not practical. They were made popular because of the ease of their production and exhibition. Though the earliest theatrical presentations were done with this system, most 3D movies from the 50s and 80s were originally shown polarized.
In an anaglyph, the two images are superimposed in an additive light setting through two filters, one red and one cyan. In a subtractive light setting, the two images are printed in the same complementary colors on white paper. Glasses with colored filters in each eye separate the appropriate images by canceling the filter color out and rendering the complementary color black.
Anaglyph images are much easier to view than either parallel sighting or crossed eye stereograms, although the latter types offer bright and accurate color rendering, particularly in the red component, which is muted, or desaturated with even the best color anaglyphs. A compensating technique, commonly known as Anachrome, uses a slightly more transparent cyan filter in the patented glasses associated with the technique. Process reconfigures the typical anaglyph image to have less parallax.
An alternative to the usual red and cyan filter system of anaglyph is ColorCode 3-D, a patented anaglyph system which was invented in order to present an anaglyph image in conjunction with the NTSC television standard, in which the red channel is often compromised. ColorCode uses the complementary colors of yellow and dark blue on-screen, and the colors of the glasses' lenses are amber and dark blue.
The anaglyph 3-D system was the earliest system used in theatrical presentations and requires less specialized hardware.
The polarization 3-D system has been the standard for theatrical presentations since it was used for Bwana Devil in 1952, though early Imax presentations were done using the eclipse system and in the 60s and 70s classic 3D movies were sometimes converted to anaglyph for special presentations. The polarization system has better color fidelity and less ghosting than the anaglyph system.
In the post-'50s era, anaglyph has been used instead of polarization in feature presentations where only part of the movie is in 3D such as in the 3D segment of Freddy's Dead: The Final Nightmare and the 3D segments of Spy Kids 3D.
Anaglyph is also used in printed materials and in 3D TV broadcasts where polarization is not practical. 3D polarized TVs and other displays only became available from several manufacturers in 2008; these generate polarization on the receiving end.
Polarization systems
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 polarizing filters oriented differently (clockwise/counterclockwise with circular polarization or at 90 degree angles, usually 45 and 135 degrees,with linear polarization). As each filter passes only that light which is similarly polarized and blocks the light polarized differently, 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, the entire audience can view the stereoscopic images at the same time.
In the case of RealD a circularly polarizing liquid crystal filter which can switch polarity 144 times per second is placed in front of the projector lens. Only one projector is needed, as the left and right eye images are displayed alternately. Sony features a new system called RealD XLS, which shows both circular polarized images simultaneously: a single 4K projector (4096×2160 resolution) displays both 2K images (2048×858 resolution) on top of each other at the same time, a special lens attachment polarizes and projects the images.
Thomson Technicolor has produced a system using a split lens which allows traditional 35mm projectors to be adapted to project in 3D using over/under 35mm film. This is a very cost-effective way to convert a screen as all that is needed is the lens and metallic (silver) screen rather than converting entirely to digital.A metallic screen is necessary for these systems as reflection from non metallic surfaces destroys the polarization of the light.
Polarized stereoscopic pictures have been around since 1936, when Edwin H. Land first applied it to motion pictures. The so called "3-D movie craze" in the years 1952 through 1955 was almost entirely offered in theaters using linear polarizing projection and glasses. Only a minute amount of the total 3D films shown in the period used the anaglyph color filter method. Linear polarization was likewise used with consumer level stereo projectors. Polarization was also used during the 3D revival of the 80s.
In the 2000s, computer animation, competition from DVDs and other media, digital projection, and the use of sophisticated IMAX 70mm film projectors, have created an opportunity for a new wave of polarized 3D films.
Eclipse method
With the eclipse method, a mechanical shutter blocks light from each appropriate eye when the converse eye's image is projected on the screen. The projector alternates between left and right images, and opens and closes the shutters in the glasses or viewer in synchronization with the images on the screen. This was the basis of the Teleview system which was used briefly in 1922.
A variation on the eclipse method is used in LCD shutter glasses. Glasses containing liquid crystal that will let light through in synchronization with the images on the computer display or TV, using the concept of alternate-frame sequencing. This is the method used by nVidia, XpanD 3D, and earlier IMAX systems. A drawback of this method is the need for each person viewing to wear expensive, electronic glasses that must be synchronized with the display system using a wireless signal or attached wire. The shutterglasses are heavier than most polarized glasses though lighter models are no heavier than some sunglasses or deluxe polarized glasses.
Pulfrich
The Pulfrich effect is based on the phenomenon of the human eye processing images more slowly when there is less light, as when looking through a dark lens.
Imagine a camera which starts at position X and moves right to position Y as shown by the arrow. If a viewer watches this segment with a dark lens over the left eye, then when the right eye sees the image recorded when the camera is at Y, the left eye will be a few milliseconds behind and will still be seeing the image recorded at X, thus creating the necessary parallax to generate right and left eye views and 3D perception, much the same as when still pictures are generated by shifting a single camera. The intensity of this effect will depend on how fast the camera is moving relative to the distance to the objects; greater speed creates greater parallax.
A similar effect can be achieved by using a stationary camera and continuously rotating an otherwise stationary object. If the movement stops, the eye looking through the dark lens (which could be either eye depending on the direction the camera is moving) will "catch up" and the effect will disappear. One advantage of this system is that people not wearing the glasses will see a perfectly normal picture.
Of course, incidental movement of objects will create spurious artifacts, and these incidental effects will be seen as artificial depth not related to actual depth in the scene. Unfortunately, many of the applications of pulfrich involve deliberately causing just this sort of effect and this has given the technique a bad reputation. When the only movement is lateral movement of the camera then the effect is as real as any other form of stereoscopy, but this seldom happens except in highly contrived situations.
Though pulfrich has been used often on TV and in computer games, it is rarely if ever used in theatrical presentations.
New systems without glasses
There is increasing emergence of new 3-D viewing systems which do not require the use of special viewing glasses. These systems are referred to as Autostereoscopic displays. They were initially developed by Sharp.
The first Autostereoscopic LCD displays first appeared on the Sharp Actius RD3D notebook and the first LCD monitor was shipped by Sharp in 2004 for the professional market. Both have since been discontinued. The first Autostereoscopic mobile phone was launched by Hitachi in 2009 in Japan and in 2010 China mobile is to launch its version. Manufacturing trials are being run for TV. For the gaming market the first probable commercial application will be handheld gaming devices, such as the Nintendo 3DS. These systems do not yet appear to be applicable to theatrical presentations.
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（Tangled 2011）
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