UHDTV (ultra high definition tv) rollout planned for 2025

[erdega79]

This is a very interesting article about was mentioned here before about uhdtv. It's developed in Japan right now but it's a long way off but the specs seem amazing. 7680×4320 resolution, 22.2 audio, 21gHz frequency band , The band width is 600MHz, 500Mbps ~ 600 Mbps

This is a translated article
NHK: UHDTV official launch:2025

The NHK broadcast technical research institute ~ on 29th convenes " the technique in May 26th, 2005 grinds public 2005 " above, publicized the screen resolution for 7680×4320, is equal (HDTV) 16 times " ultra rose the clear television " to the high clear television the plan schedule. Although up to now already trial produced supports ultra rises the clear television photographic camera, actually demonstrates the image broadcast, but is first time public concrete program plan. But, the program also only is the NHK goal, certainly does not have the determination when to begin broadcasting.

To concrete program which officially begins broadcasting as follows: Before 2008 completes face the family transmission system trial manufacturing and the experiment. Before 2011 determines broadcasts the technology face the family. In 2015 starts to test broadcasting, before 2020 develops the home use monitor and the sound equipment. The plan officially begins broadcasting around 2025. In 2025 exactly meets Japan radioly begins broadcasting the 100th anniversary.

The plan is uses the 21gHz frequency □ > 奈 the man gun 悴 □

The transmission method aspect, proposes uses the 21gHz frequency band (21.4gHz ~ 22.0GHz) satellite broadcast. Because one satellite mays then to cover entire Japan, simultaneously may the use frequency band be enough. The band width is 600MHz, if can the one's own use be allowed to carry on 500Mbps ~ 600 Mbps the transmission. When but, in by 21gHz frequency band transmission signal, the existence rains when the signal weakens compared to usually the serious problem. This time, to estimated can because rain causes the signal □p to fade the serious area carries on the enhancement signal launch modelling. In addition also demonstrated in the conference site the 21gHz frequency □ > south 嗫 the small-mouthed wine vessel 筇 煜 □rf (radio frequency) was partial. (Reporter: New well will)

NHK, UHDTV

Aiming to begin broadcasting 20 years from now, “Super Hi-Vision”
A report by NHK’s research institute in 2005

　On May 26th, the NHK broadcasting technology laboratory presented their “engineering and research release 2005”. Many of the attendants were attracted to the ultra-high-detail images produced by the 4000-scanline ‘Super Hi-Vision’ system.
　This Super Hi-Vision system, after being generally released in last year’s ‘engineering and research release’, has also been exhibited since March in the Aichi international exposition which is currently underway. It has an information density 16 times that an HD image, projecting images 7,680×4,320 resolution onto a 450 inch screen. Paired with a 22.2 channel surround-sound system, it demonstrates the next generation of audio/video systems.

With the release of this year’s roadmap, which shows broadcasts beginning in 2025, work is now progressing at full speed. According to the roadmap, trial manufacture of systems for home/experiments will arrive in 2008, home broadcast technology in 2011, experimental broadcasts in 2015, finalization of home A/V devices in 2020, and full-service broadcasts in 2025.

The image format is progressive, 7,680x4,320 pixels at 60Hz.　
The 22.2ch sound system was demonstrated using a sumo tournament. The imaging and detail were appealing, with a sense of ‘being there’.
Possible transmission systems for this broadcast format are being examined. Currently 21GHz band satellite broadcasts are the most likely candidate.
In addition to the demonstration, a technical presentation on Super Hi-Vision revealing part of the research efforts.

[thunderhawk]

I dont believe it will be launched @ 2025 :shock:

I read some things on the website of the European Union, and read an article of the year 1989. It was about the agreement of HDTV @ 1250p everywhere in Europe in the year 2000...
Now HDTV will be here in the year 2010 (at least introduced everywhere in Europe) @ 720p/i and 1080i...

I think thats a bit too early

[erdega79]

I think it's in japan. They are somewhat ahead of norht america and much more over europe when it comes to new technologies

[thunderhawk]

Originally Posted by erdega79

I think it's in japan. They are somewhat ahead of norht america and much more over europe when it comes to new technologies

Yeah, but will the people also upgrade when that comes out? :?
I have my doubts...

[tron3]

7680×4320 resolution by 2025?! :shock: Wow, that will be my retirement present to myself. <rolls eyes>

Really, how are they going to pull off transmitting that video? There is not enough bandwidth in the sky, even with mega compression techniques. That will need some pretty clean and fat cables. Probably all fiber.

I'm not saying it is not possible, just not very probable. Video of that nature would have to come on a blu-ray disc. HD-DVD just won't have the capicity to do it justice.

I sure would like to see a picture of that. I bet it is spectacular.

[erdega79]

Originally Posted by thunderhawk

Yeah, but will the people also upgrade when that comes out? :?
I have my doubts...

It's a long way off. HDTV was just a bold idea in the 80's too. Something to look forward to. I should have mentioned that it's 20 years off in Japan but likely many years later anywhere else and even then it'll probably be only used for cinema, and where huge screens can be found.

[thunderhawk]

Yeah, thats right.

I don't think you'll ever see the diference between HDTV and UHDTV on a 40" screen. Just guessing but I think you'll see what I mean

[Gorkab]

UHDTV for 2025 ? Less than 10 % of the global population have access to HDTV today ! O_O

[thunderhawk]

Yup, thats right!
And its having ACCESS to HDTV.. :!:

But 20 years is still a long time but I think 30 years is more realistic.
But you never know what might happen in future isn't it? :wink:

[Gorkab]

Originally Posted by thunderhawk

Yup, thats right!
And its having ACCESS to HDTV.. :!:

But 20 years is still a long time but I think 30 years is more realistic.
But you never know what might happen in future isn't it? :wink:

Yeah, I just played the PSP in LAN with 5 guests today, I can imagine the PSP 3 easily... :shock:

[159753]

Originally Posted by tron3

7680×4320 resolution by 2025?! :shock: Wow, that will be my retirement present to myself. <rolls eyes>

Really, how are they going to pull off transmitting that video? There is not enough bandwidth in the sky, even with mega compression techniques. That will need some pretty clean and fat cables. Probably all fiber.

I'm not saying it is not possible, just not very probable. Video of that nature would have to come on a blu-ray disc. HD-DVD just won't have the capicity to do it justice.

I sure would like to see a picture of that. I bet it is spectacular.

You need a HVD (Holographic Versatile Disc) which can hold up to (uncompressed) 3,9 terabytes (3 994 GB) , it will come in around 2010 and it aims to replace BD. See http://en.wikipedia.org/wiki/Holographic_Versatile_Disc The problem with UHDV is that it may cause motion sickness because the resolution is so high.

[Rob]

I would assume UHDTV will be for public broadcasting. Would our eyes need that sort of res on a 32" tv say?

[thunderhawk]

no way =P

I don't think it would be visible. Maybe for huge projectors or so, but for home displays? I think you'll hardly see the difference on a big screen for the use in homes.
Many people don't see the difference between HD and DVD quality so..

[Gorkab]

Originally Posted by thunderhawk

Many people don't see the difference between HD and DVD quality so..

Yeah, sadly...

[Knight-Errant]

Then again, how many people have had a chance to see true progressive HD in their homes?
Not that many compared to those who have watched DVDs methinks.

TVs in shop showrooms are notoriously set to very low contrast and high brightness in order to be seen over the harsh lighting. That doesn't make for a very sympathetic first impression.

Ever since I got my DLP projector I'm sold on high resolution progressive images and will upgrade soon after blu-ray launches. Those who've been guests in my screening area have certainly expressed wonder at the image quality.

[Shadowself]

Can we see as good as 7680 x 4320 ??

Quick answer:
Under certain circumstances, yes.

Long answer:
Average, good human vision can see angular resoutions as good as approximately 150 microradians.

Under certain circumstance (good lighting, high contrast, etc) human vision can determine that straight line segments butted end-to-end are misaligned by as little as 25 microradians (from the observer's point of view of the misalignment). That is, if the ends of two parallel lines butted together are off by one millimeter at the junction and the observer is 40 meters away then the observer may discern the misalignment.

Therefore:
Under general conditions an observer looking at a 7680 x 4320 set which is 60 inches in diagonal measurment would have to be within 45 inches of the screen to see the individual pixels. Clearly being 45 inches from a 60 inch screen is too close for comfort.

In the extreme, using edge effects mentioned above, an observer could be as far as 272 inches away from the screen and see two lines on the screen that each are one or more pixels wide and stretch from the center of the screen to opposite ends and where such lines are parallel, but not co-linear by only one pixel. Observing a 60 inch screen from 272 inches away is most likely too far away for most of us.

So a 7680 x 4320 screen is probably pushing the limits of what a person can reasonbly observe under normal circumstances, but it is not unreasonably going beyond the limits of human vision.

[john_1958]

Wonder how movies and HDTV will look with NHK new hi-vision
http://slashdot.org/articles/05/11/0...id=129&tid=126

article at EEtimes.com Japanese company NHK has successfully demonstrated a live relay of 'Super Hi-Vision' television, which is 16x 1080i resolution -- 7680 x 4320!" From the article:
Looks promising to me

[thunderhawk]

Erm...
One problem... There are NO consumer displays to view it on.
Prob :-/

[Gorkab]

And if there was, I would wonder how we could read something like that !!! O_O

[Dave]

As we can see BD discs will be the only one wich can store this kind of video, because of their 100GB and 200GB variants
I want people in avsforum to understand this but they maybe cant