It's a Brave New World – Blog edited by Scott Arundale

There are currently two key methods for delivering 3-D content to the home. Most 3-D sets being sold today rely on the method called “frame-sequential display.” Part of the main 3-D Blu-ray specification, this delivery method consists of a sequence of alternating frames meant for each eye.

Frame sequential lends itself to the active-shutter-based technology used for today’s 3-D TVs. The active-shutter glasses used for viewing must sync with the 3-D TV set to allow the correct eye to view the correct image at the precise time. The active-shutter glasses turn opaque and switch the eyepiece so the viewer can process the correct image at the moment it is intended.

For broadcasters, however, sequential viewing uses too much bandwidth. It is essentially displaying two images — one for each eye. Efforts were made to reduce the bandwidth used for 3-D delivery to be about the same as that used for HDTV.

3-D TV sets are actually computers that can process a variety of formats and perform on-the-fly conversions. Seeking to lower the needed bandwidth for 3-D delivery, broadcasters devised side-by-side technology as an alternative way to deliver 3-D to the home.

When it launches this month, DirecTV will be airing 3-D programming by using the side-by-side 3-D format. ESPN also will be airing 3-D content using a 720p, 60fps side-by-side format for its World Cup coverage.

Side by side uses the same bandwidth as standard HD transmissions and only half that of frame-sequential technology. Using 24fps, it splits the image into two frames — one for each eye. It doubles the length of each segment, and then displays those images sequentially for the shutter glasses.

While not as dense or rich as frame-sequential images, it uses far less bandwidth and requires no new set-top box hardware. Pay-TV providers need only provide a simple firmware update to their equipment.

ESPN has done some testing with 720p side-by-side content for sporting events, and the feedback from initial testers has been positive.

Feedback:

There are currently two key methods for delivering 3-D content to the home. Most 3-D sets being sold today rely on the method called “frame-sequential display. Part of the main 3-D Blu-ray specification, this delivery method consists of a sequence of alternating frames meant for each eye.

It is important not to confuse the Delivery method with the Presentation method.

The Part of the main 3-D Blu-ray specification consists of a sequence of alternating frames meant for each eye. If you are thinking “deliver to our eyes” you are correct. But, since we are talking about bandwidth it seems far more logical to take “delivery” as the means of transmission.

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When a 3D BD player outputs 3D over HDMI — it is as two full 1920×1080 frames stacked to create 1920×2200 frames. It is up to each HDTV to take each 1920×2200 frame via HDMI 1.4 and display it for both eyes.

When we talk about “frame-sequential”  this means 2 cable HD channels are used. I don’t think this has anything to do with BD specifications–although a 3D HDTV would need two HDMI ports to input from two cable boxes.

There is no real bandwidth problem with this system! It is an economic limitation. If a cable company wants to do 3D it could cancel one of the channels it now sends you where there is obviously no HD content. Nothing but rescaled SD!

The 720p60 side by side is great for the cable operator, but obviously 1/2 the horizontal resolution is discarded. And with 1280, there isn’t that much to start with. The reason it looks OK is the same reason alternating column thin-film polarized systems look fine.

Despite what Sony claims, our eyes integrate the alternating column L & R one-half horizontal resolution images back to 1920-pixels when we fuse the image into 3D.

Sequential systems are needless because they offer no more greater perceived horizontal resolution–yet require active glasses that allow horrible crosstalk. Sony’s demo at NAB often showed one golf ball as several balls.

JVCs alternating column thin-film polarized system looks just as good and DOES NOT require ACTIVE glasses. Because the passive glasses need not change opacity at high-speed they don’t have crosstalk. Plus, they are cheap.

The correct way to do 720p60 is to use the BD MPEG-2 system with a full bandwidth 720p60 plus a sub-channel carrying the MPEG-2 delta data. Of course, this requires either 2 cable boxes or a new generation of boxes.

Because 720p60 at 19mbps has extra bandwidth for a second sub-channel, I’m not sure how 1080i60 would get the extra bandwidth. Actually, we all know! They simply cut the bit-rate of the main channel to leave bandwidth for a sub-channel carrying the MPEG-2 delta data. Again, this requires either 2 cable boxes or a new generation of boxes.

Source: http://blog.broadcastengineering.com

A new type of display from Microsoft produces multiple images and tracks the viewers’ eyes

Today’s 3-D movies are far more spectacular than the first ones screened more than 50 years ago, but watching them–both at the movie theater and at home–still means donning a pair of dorky, oversized glasses. Now a new type of lens developed by researchers in Microsoft’s Applied Sciences Group could help make glasses-free 3-D displays more practical.

The new lens, which is thinner at the bottom than at the top, steers light to a viewer’s eyes by switching light-emitting diodes along its bottom edge on and off. Combined with a backlight, this makes it possible to show different images to different viewers, or to create a stereoscopic (3-D) effect by presenting different images to a person’s left and right eye. “What’s so special about this lens is that it allows us to control where the light goes,” says Steven Bathiche, director of Microsoft’s Applied Sciences Group.

3-D technology has seen a renaissance recently. Thanks to the success of movies like Coraline, Up, andAvatar, Hollywood is spending more money than ever to give audiences a stereoscopic experience. And electronics manufacturers are racing to replicate the 3-D theater experience in the home. The market for 3-D-capable televisions is expected to grow from 2.5 million sets shipped in 2010 to 27 million in 2013, according to the research firm DisplaySearch. However, the glasses required to watch 3-D video is a turnoff for many would-be early adopters.

At the Society for Information Display International Symposium in Seattle last month, companies showed off 3-D displays that don’t require glasses. These sets often use lenticular lenses, which are integrated into the display and project different images in two fixed directions. But a viewer needs to stand in designated zones to experience a 3-D effect; otherwise the screen becomes an out-of-focus blur.

Microsoft’s prototype display can deliver 3-D video to two viewers at the same time (one video for each individual eye), regardless of where they are positioned. It can also shows ordinary 2-D video to up to four people simultaneously (one video for each person). The 3-D display uses a camera to track viewers so that it knows where to steer light toward them. The lens is also thin, which means it could be incorporated into a standard liquid crystal display, says Bathiche.

The idea of tracking viewers to make the glasses-free 3-D easier has been around for decades. One of the big challenges, explains Ken Perlin, professor of computer science at New York University, is that the computers used for eye-tracking were too expensive and too slow to make such a system practical. As computers have become faster and cheaper, viewer-tracking systems have gotten up to speed; other components, particularly those needed to target viewers, have remained bulky and impractical to manufacture on a large scale.

Microsoft’s wedge lens is about 11 millimeters thick at its top, tapering down to about six millimeters at the bottom. A traditional lens, found in a projector, sits between a point of light and its focal point–the spot where the light is focused. This is the reason why viewer-tracking 3-D systems are often so bulky. The design of the wedge lens bypasses this problem, explains Bathiche. “Instead of having light travel in air, it travels within the lens,” he says. “It allows us to compress the distance between the projector and the screen.”

The focal point in the new screen is the flat surface of the wedge. An optical trick means that light enters through the edge, bounces around inside the lens (much as if it were in a fiber-optic cable), and, when the light has bounced enough times to reach a specific angle (known as the “critical angle”), it exits through the front of the lens. Bathiche says that the specialized lens design, which includes a rounded, thicker end, dictates how the light bounces around and when and where it can escape.

The direction the light comes out depends on the position and angle that the light as it enters the bottom edge of the lens. This is controlled using an array of light-emitting diodes at the bottom of the screen. The viewer-tracking cameras are also positioned at the bottom edge of the lens; these collect light traveling the other way through the lens. Bathiche says that system’s viewing angle is about 20 degrees, but hopes that with tweaks to the lens design, this can be increased to 40 degrees.

Bathiche says the 3-D lens can replace the traditional backlight in a liquid crystal display (LCD) to create a glasses-free 3-D display. Light from the lens will shine through the liquid crystals, projecting images at the viewers. The quality of the resulting picture is limited by the screen’s refresh rate. A normal 240 Hertz LCD can accommodate two 3-D views, meaning that each viewer’s eye receives a video that refreshes at a rate of 60 Hertz. Any slower, and the frames the video would be jerky. Alternatively, four viewers could watch their own 2-D video using the same display at a refresh rate of 60 Hertz. If the video were split again, then the frames would become jerkier.

The technology is to some degree “at the mercy of what the LCD panel in front of the backlight can do,” says Michael Bove, director of the consumer electronics laboratory at MIT. To address this, Bathiche says Microsoft is pushing display manufacturers to make faster LCDs. Bathiche’s group is also exploring other ways to use the 3-D lens. If integrated into a backlight of a laptop, he says, it could provide a way to instantly toggle between a private view, in which the backlight steers the images from the screen toward a single person’s eyes, and a shared view, in which the backlight shines the images out in all directions.

Source: TechnologyReview.com

Split screen: Microsoft’s 3-D screen can project multiple images simultaneously. Here it is projecting a block of red and a block of blue onto a screen two meters away.

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Update 6.19.10:

Pixar/Disney is enjoying a $104 million weekend and it’s 11th number #1 opener.  Toy Story 3 is only the 3rd animated film in history to gross over $100 miilion in a 3 way weekend, thanks in part to the 3D upcharge

Woody, Buzz and the whole gang are back. As their owner Andy prepares to depart for college, his loyal toys find themselves in daycare where untamed tots with their sticky little fingers do not play nice. So, it’s all for one and one for all as they join Barbie’s counterpart Ken, a thespian hedgehog named Mr. Pricklepants and a pink, strawberry-scented teddy bear called Lots-o’-Huggin’ Bear to plan their great escape.

Toy Story 3 will be the only new 3D movie for June, but in July we are going to get three new titles, two of which are most likely a 2D to 3D conversions

Source: http://3dvision-blog.com/

June 18th: Toy Story 3
Animation
Movie trailer: http://www.youtube.com/watch?v=v_FfHA5whXc
More information: http://www.imdb.com/title/tt0435761/

July 2nd: The Last Airbender
Live action (2D->3D conversion)
Movie trailer: http://www.youtube.com/watch?v=7YgaVe19zs8
More information: http://www.imdb.com/title/tt0938283/

July 9th: Despicable Me
Animation
Movie trailer: http://www.youtube.com/watch?v=yOKtRJWBFL8
More information: http://www.imdb.com/title/tt1323594/

July 30th: Cats & Dogs 3: The Revenge of Kitty Galore
Live action (2D->3D conversion?)
Movie trailer: http://www.youtube.com/watch?v=AkeN2o0QRSE&feature=fvst
More information: http://www.imdb.com/title/tt1287468/

August 6th: Step-Up 3-D
Live action
Movie trailer: http://www.youtube.com/watch?v=89TLbK6o-og
More information: http://www.imdb.com/title/tt1193631/

August 11th: Around the World in 50 Years 3D
Animation
Movie trailer: http://www.youtube.com/watch?v=3A55eR0c … re=related
More information: http://www.imdb.com/title/tt1230204/

August 27th: Piranha 3-D
Live action (2D->3D conversion)
Movie trailer: http://www.youtube.com/watch?v=nQz4fSHtpxk
More information: http://www.imdb.com/title/tt0464154/

September 10th: Resident Evil: Afterlife
Live action
Movie trailer: http://www.youtube.com/watch?v=9dc5iiT0f1s
More information: http://www.imdb.com/title/tt1220634/

September 24th: Legend of the Guardians: The Owls of Ga’Hoole
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Movie trailer: http://www.youtube.com/watch?v=pikm7QJSmOM
More information: http://www.imdb.com/title/tt1219342/

October 1st: Alpha and Omega
Animation
Movie trailer: n/a
More information: http://www.imdb.com/title/tt1213012/

October 15th: Jackass 3-D
Live action
Movie trailer: n/a
More information: http://www.imdb.com/title/tt1116184/

October 22nd: Saw VII 3D
Live action
Movie trailer: http://www.youtube.com/watch?v=U55iSekiBIw
More information: http://www.imdb.com/title/tt1477076/

November 5th: Megamind
Animation
Movie trailer: http://www.youtube.com/watch?v=Wtf2vk0BCsc
More information: http://www.imdb.com/title/tt1001526/

November 19th: Harry Potter and the Deathly Hallows: Part I
Live action (2D->3D conversion)
Movie trailer: http://www.youtube.com/watch?v=2MP7CHMeVjo
More information: http://www.imdb.com/title/tt0926084/

November 24th: Tangled (Rapunzel)
Animation
Movie trailer: http://www.youtube.com/watch?v=M-ANTQwZ5b0
More information: http://www.imdb.com/title/tt0398286/

December 10th: The Chronicles of Narnia: The Voyage of the Dawn Treader
Live action (2D To 3D Conversion)
Movie trailer: n/a
More information: http://www.imdb.com/title/tt0980970/

December 17th: Tron Legacy
Live action
Movie trailer: http://www.youtube.com/watch?v=L9szn1QQfas
More information: http://www.imdb.com/title/tt1104001/

December 17th: Yogi Bear
Animation
Movie trailer: n/a
More information: http://www.imdb.com/title/tt1302067/

December 22th: Gulliver’s Travels
Live action (2D To 3D Conversion)
Movie trailer: n/a
More information: http://www.imdb.com/title/tt1320261/

The Henson clan have not been idle since the passing of their father Jim Henson in 1990.  The older characters Kermit the Frog and Miss Piggy were sold to the Walt Disney company in 2004.   More recently they created original characters such as “Sid the Science Kid” who stars in a musical this month on June 21st.

Lisa Henson, daughter of the Muppets creator and CEO of The Jim Henson Co. while her brother Brian is chairman, sees making a 3D movie as a natural progression for the company.

SOD is a progressive condition that without proper treatment can cloverleafbowl.com generico viagra on line eventually cause severe complications like pancreatitis and gallbladder inflammation. We all now know that such disorders may set off in children in early childhood. free sample of cialis It also offers effective page here levitra pills treatment for male impotence. cheap viagra canada Advent of many diseases these days has been the hot topic around as each and every person these days is said to be a victim of erectile dysfunction. “He was pretty far ahead of his time, and I like to think that we have taken the company in the direction he would have chosen. I really believe that 3D will only get better.”

The company is looking at a 2013 release for the movie “The Power of the Dark Crystal” to be shot in Australia, directed by brothers Peter and Michael Spierig.

German filmmmaker Wim Wenders (Paris, Texas , Buena Vista Social Club) recently shot a documentary about legendary choreographer Pina Bausch and described 3d as “an ideal tool for documentary filmmakers”.

“I finished shooting now and I am in the middle of editing. It will be a long process. It is such a new thing to do a documentary in 3D”, Wenders told AFP in an interview during the Transylvania International Film Festival (TIFF) in Romania.

Though Pina Bausch passed away before filming was completed, Wenders was able to work with the grande dame’s dance ensemble Tanztheather in Germany, crafting a film about dance choreography and the use of space.

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Wenders remains bullish on the influence stereo filmmaking will have on the documentary genre comparing it to the effects HD and digital had 15 years prior.

“I think that 3D will do the same. In the future, every documentary will be shot that way.”

The International 3D Society issued a survey that reveals 3D screens outgrossed 2D screens by a margin of 2  to 1.

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The International 3D Society provides a community along with education and recognition for stereoscopic 3D professionals and is producing the 3D Technology Awards October 5.

UPDATE 5.24.10

The Wall Street Journal reports that studios intend to squeeze the exhibition window to 30 days !

“While the plan could be a boon for consumers, it stands to be highly disruptive for the movie business, particularly theater owners.”

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FCC Will Allow Studios To Send First-Run Films Directly To Consumers Over Secure TV.

In defense of public exhibition, teenagers will still want to get out of the house and find a cool dark place to make out. If what Nikki Finke says comes true then I think they ought to look at ticket and concession pricing and adjust them accordingly. However 3D and Imax venues will continue to draw customers

It is fully expected that the other cable operators will follow suit.

3dvision-blog.com reports on how to use your spanking new 3D display for PC gaming using the new HDMI 1.4(a) specs.  Samsung is leading the way with Panasonic and Sony nipping on their heels.  It will take awhile for feature films and TV to fill the gap which leaves gaming to be the first to the dance.

UPDATE 5.10.10

Michael Grotticelli notes in Broadcast Engineering:

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UPDATE 5.13.10

James Cameron in remarks he made at the Seoul Digital Forum bemoaned the lack of 3D content stating: “If you play all the 3-D movies in existence on your fancy new 3-D TV, it will keep you entertained for about 3 days. This content gap is the biggest hurdle for the rapid adoption of 3D TV.” He still regards 3D as the “premium viewing experience” which  will become the mainstream format for filmed entertainment in the next twenty years.

Will Smith Commits To 3D Men In Black Sequel; Sony Sets May 25, 2012 Release.

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