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when is sky starting 4K or 8K ULTRA HD?
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when is sky starting to use 4K or 8K ULTRA HD?
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[Deleted User]
Posts: 297 [Deleted User]
Posts: 297 [Deleted User]
Posts: 297 [Deleted User]
Posts: 297
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Sky will probably try to sell 4K as a premium product much like 1K.
It's fine in cinemas but a pain for home viewing because of the glasses.
However, with 4 or even 8k which I think will be used for production purposes,
from what I've heard you don't need 3D perse with 4k because of the height of the definition.
Currently there are NO 4K channels in the world. Eutelsat's so called "UHD" channel is a fake because they use 4 HD video channels to emulate UHD. This is NOT proper UHD.
So I am none the wiser as to when such a service will start at the moment.
And what would be the point of such a service? - apart from feeding the imaginations of those who just like bigger numbers?.
The current 1920x1080 is already too high for the vast majority of viewers, who already watch that from too far away. Increasing the resolution further would require viewing from even closer to get any worthwhile effect, which I can't see people doing?.
Not anytime soon, give it 5-10yrs more likely a lot later.
There are channels to organise and programme needed to furnish those channels.
But firstly we will need to be able to buy affordable sets and decoders/settop boxes.
i thort only one HD channel per transponder?
and 6 sd channels per transponder?
In DVB-S configuration you normally get ~33 Mbps, enough for 8-10 SD channels if your encoder is good. In DVB-S2 configuration, you get ~44 Mbps, enough for 4 HD channels (AVC), 1 UHD channel (AVC) or 2 UHD channels (HEVC).
http://www.theverge.com/2013/1/27/3920720/4k-tv-broadcasts-to-start-in-japan-next-year
Japan haven't gone 3D like we have but opted for 4k as an alternative, a very good alternative (Technically speaking of course) but sets will be horrendously expensive for quite some time yet!
It is likely that some (and increasing amount of) acquisition will use UHD1 as oversampling gives you a good picture ( see what HD origination looks like in SD) ... and likewise at the display - particularly if the panel manufacturers make nothing else!!!
But the EBU tests showed that although native UHD1 path was visually just (1/4 point) better than UHD1 capture HD transmission UHD1 display there was no WOW factor that would drive people towards it (there was a Wow factor at start of HD whether in the Year of HD = 1990 or 2002 or 2008 say) but there is a WOW factor for UHD2.
At the moment 80% of the world only has SD ...
What's all this on wiki?
As of 2008, 3D programming is broadcast on Japanese satellite BS11 approximately four times per day
The first Japanese television series in 3D, Tokyo Control, premiered on 19 January 2011
http://en.wikipedia.org/wiki/3D_television
Agreed, broadcasting 1080p24 and lossless audio (ie Blu-ray quality) will still take up less bandwidth than Ultra HD, that would be good!
The next step change - which is what FOBTV is looking for - should be higher static res - higher frame rate (Some would say that 100/120 pictures a sec is needed for HD static resolution) , Progressive of course ,Linear gamma, wider gamut etc and in many ways getting rid of the issues which bedevil current systems where the step change was not made with the move to HD.
But just as some directors like "film look" (25fps prgressive) will we have "TV look" (25fps interlace) effects on what will be higher res "reality" Tv....
ok,thanx
Apparently the picture quality on a 4k TV being fed a 4k source is so realistic it blows 3D out of the water.
So you can image what 8k does, like I said, Who needs 3D?
"In the year 2525, if man is still alive.........":D
(also saw Die Hard 99..or whatever it was, .what a mistake that was ! )
I did notice in the states, that a hell of a lot of new 3D films were all animation, with a very few live action, there was/is Top Gun 3D !
The BBC did a demo of 8K footage of the Olympics which I attended and indeed it looks like 3D in the sense that there is so much detail it feels you are looking at the real thing. Not in the silly exaggerated way that 3D does. Just seems you can reach out and touch stuff.
Quite.
Lets put it this way, 50" TV from 7-10 feet, even with my eye sight the difference between 720p and 1080i/p is small, 1080i/P ( I use a separate AV processor that employs Vector Adaptive de-interlacing along with ISF certified CMS and grayscale management, to get best out of my TV) it looks slightly better, slightly more detail but the reality is I'd need a bigger screen or to sit closer to see all the 1080p detail.
I cannot see many people sitting that close to a or closer to an 80"+ screen in hope of seeing the improvement in detail in UHDTV ( the current UHDTV 3840x2160 16:9 TV standard is not full the full 4k 4096x2160 17:9 ratio in digital cinema)
So, ideal for a big gathering in a park etc, but in reality pointless in the average person's home.