Blu-ray going 1440p and 50Mbs + bitrate ?

[ixlegitballinxl]

only source right now that can use xvYCC is a camera no?......

[unreal1080p]

Originally Posted by kjack

HDMI 1.3 is needed to transfer deep color. But xvYCC is a separate entity, and can be used with 8-, 10-, 12-bit, etc. bit depths.

Correct. But according to the wikipedia article... it is preferable to use Deep Color bith depths (10, 12 or 16 bit) rather then 8 bit in order to prevent posterization and color banding when using the xvYCC color palette. It seems to me that using the xvYCC color palette while maintaining only an 8bit color depth would be trading one good thing (more colors) for a new bad thing (posterization and banding)... does'nt make sense to me and this is why (IMHO) we will NOT see it on commercial Blu-Ray movies.

xvYCC is 1.8 times the number of colors currently used in Blu-Ray... it would only make sense to increase the bit depth to at least 12 bit (16 would be the ideal here).

Some good articles about xvYCC and Deep Color:

http://www.hometheatermag.com/gearworks/207gear/

http://www.camcorderinfo.com/content...olor-34362.htm

http://www.abccables.com/info-xvycc.html

About xvYCC
Extended-gamut YCC (xvYCC), a video electronics color space, supports 1.8 times as many colors as the sRGB color space. An xvYCC display, along with Deep Color to reduce posterization, can display the full range of colors visible to the human eye. Deep Color and xvYCC technologies are the new features of the HDMI 1.3a specification.

BOTTOM LINE: Even if xvYCC is allowed with only 8 bit color depth (it is)... it wouldn't be desirable unless it was being used with a higher color bit depth (10, 12 or 16 bit) because of new issues it would introduce if used with only 8 bit --> posterization and color banding.

[adamkang]

Originally Posted by RustyK94

Thats why they will release blurays with 2 discs. One for the film and one for the extras

that isnt the case all the time, but theorically ur correct

[Deciazulado]

Actually 9 bits is 2.0 the levels of 8 bits. 16 bits is 256 times the levels of 8 bits.

[Kirsty_Mc]

What with all the talk on here about 1440P, I was just sitting back a while ago thinking about 1080 (I/P) and what was being proposed a few years ago as far as HDTV was concerned.

Japan proposed the Hi-Vision system which was 1125 lines, and broadcast this using an analogue compression system called MUSE. So this system had an additional 45 lines of resolution. They even launched a LaserDisc system onto the market using this format.

Europe proposed the HD-MAC system (which never took off) and this was a 1250 line system (twice PAL). So this system had an additional 170 lines of resolution.

Both used a similar aspect ratio, though I believe Hi-Vision was actually 5:3. I wonder what made the world plump for 1080 lines???

[U4K61]

Originally Posted by HeavyHitter

My guess is we'll have very large displays and primarily projectors which will simply upscale 1080p to 4K as a first step. Who knows how long for 4K source material though.

Got a 10mega pixel camera? It's here already, When an affordable 4K display is comes around, count me in. Perhaps I won't even have to wait for captain OLED to show up.

[maxmcleod]

Originally Posted by patrick99

Three from Disney (and very big releases), two from Paramount, and one each from Sony and Warner in your list. Totally consistent with my statement that this is something the studios are not going to want to do very often.

half the special features on bluray discs are SD anyway, stick the crap on an extra DVD not a bluray, save tons of cash, and top off the quality of the Bluray feature film.

Period, done, lets move on, hurray for me...

[syncguy]

Originally Posted by kevon27

Bluray specs says it can do upto 50Mbs bitrate. Is this limit due to storage space or is it due to the capabilities of the decoders?
Second. Can bluray do 1440p (hdmi 1.3a) in it's current state if the 100 and 200 gigs discs come out?

Blu-ray as it is could produce an outstanding picture even in a large home theater screen restricted by typical real estate dimensions. I don't think there would be a significant perceivable improvement in home configurations if higher bit rates and resolutions are used. However, commercial theaters with very large screens will definitely gain from higher resolutions (4k) and higher bit rates. IMO blu-ray is here to stay for a long time.

I have given a simple basic calculation about bit rates and disk usage in this thread.

https://forum.blu-ray.com/showthread.php?t=46673

[dnewhous]

Originally Posted by JasonR

They won't make the TVs until broadcast standards change, only way it will happen.

But Sony changed the color gamut with the 2nd hardware profile of Blu-ray. That's a change that TV sets will have to adjust for - and it has nothing to do with broadcast standards. No matter how you cut it - I'm waiting to see what happens with the 3rd hardware profile for Blu-ray.

[4K2K]

Originally Posted by dnewhous

But Sony changed the color gamut with the 2nd hardware profile of Blu-ray. That's a change that TV sets will have to adjust for - and it has nothing to do with broadcast standards. No matter how you cut it - I'm waiting to see what happens with the 3rd hardware profile for Blu-ray.

Also, no TV broadcasts are 24p, yet most discs are encoded at 24p and Blu-ray players can output 24p & many TVs can receive it.

[Kirsty_Mc]

...Also, in the UK HD capable TVs were on the market before we ever got a HD broadcast.

Higher resolutions will come one day... the electronics giants once they have the market saturated, ie. BD is the new DVD and all sets are HD will have to come up with the next "new thing". That will be ultra HD... and by that time the screens will be massive. Maybe we will buy ultra HD TVs like a roll of wallpaper and stick them to a wall .

[dnewhous]

After a little more research I really don't expect any more changes in the color gamut. And I see how you know whether or not your TV is capable of "Deep Color" - if it has 6 colors per pixel! They've been doing that for printers for years and I was wondering when we would see it for TV.

[zarksentinels]

Originally Posted by Steelmaker

"SIGH"!! My god, 1080p is GOOD ENOUGH! Why is anyone even thinking about 1440p???

well,take a look on Quad HD and you will says i need more money for my next upgrade

[tron3]

Originally Posted by movieman1942

i read that sony is talking 4K as a new format also, that the new blade runner bd was mastered in this format??? is 4K and 1440p the same???

<line deleted for misinfo>

I have to apologize to you all. I was among the first, if not THE first to create the 1440p thread. I simply doubled the 720p rate and went on to explain how broadcasting that picture is possible while keeping it compatible with existing HDTV's without modification. This was months ago. With that in mind, why double 1080p to 2160p?

All of this is moot as the tv size needed to notice the difference between 1080p and 1440p is MUCH larger than most people want, can fit in their home, or afford. Besides, you really want to burn 600+w of power to watch the evening news?

[4K2K]

Originally Posted by tron3

NO, 4k is akin to 4000p. Compared to 1440p, 1080p, and 720p.

No, 4k is about 4000 pixels across (4096 specifically?) - so 2160p.

[Rhygar]

Originally Posted by unreal1080p

The ONLY thing I am saying is that 1080i uses the same resolution then 1080P30, 1080P24 and 1080P60... THEY ALL USE 1920 X 1080 therefore making comparisons between Blu-Ray and broadcast COMPLETELY IRRELEVANT! (both of them, at their maximum quality, use the 1920 X 1080 resolution setting...regardless of bitrates, refresh rates, frames or whatever else you want to throw at it).

Am I wrong? I always believed that 1080i has a lower resolution than 1080p. With interlacing only half of the horizontal lines are drawn per frame and the other half is drawn on the next frame. With progressive the full 1080 horizontal lines are drawn each and every frame. Therefore they cannot be exactly the same in my opinion.

[syncguy]

Originally Posted by Rhygar

Am I wrong? I always believed that 1080i has a lower resolution than 1080p. With interlacing only half of the horizontal lines are drawn per frame and the other half is drawn on the next frame. With progressive the full 1080 horizontal lines are drawn each and every frame. Therefore they cannot be exactly the same in my opinion.

No you are not wrong. 1080i has half resolution than 1080p if similar frame rates are considered, e.g. 1080/60p and 1080/60i. However it is possible to transport 1080/24p as a 1080/60i signal and finally reproduce as a 1080/24p image without losing quality or resolution. This is possible only if both ends could do interlacing/telecine – inverse telecine/ deinterlacing perfectly and display the picture at a frame rate of multiples of 24. This type of perfection may not be widely available in current equipment so that 1080/60i conversion may introduce visible anomalies for 1080/24p content.

See this thread:
https://forum.blu-ray.com/showthread...851#post972851
post #50

[4K2K]

Originally Posted by Rhygar

Am I wrong? I always believed that 1080i has a lower resolution than 1080p. With interlacing only half of the horizontal lines are drawn per frame and the other half is drawn on the next frame. With progressive the full 1080 horizontal lines are drawn each and every frame. Therefore they cannot be exactly the same in my opinion.

With interlacing only half of the horizontal lines are drawn per frame and the other half is drawn on the next frame

Well technically, with interlacing, it's on each field, not on each frame.

With 1080/60i and 1080/30p the frame rates will be the same, but the refresh rates will be different.

Both of the above will display 30 new whole frames per second but the interlaced one will take two refreshes (fields) to show each frame, whereas the 30p one will show all lines in one go for each frame.

[SP@Z.]

I think going 1440p this early, more than anything is going to piss people off.

[natedog543]

1440p is more for a computer screen. you wouldn't even be able to tell the difference on a TV. its all about the Horizontal lines