Ultra-High Definition Television Coming as Early as 2017

[JediFonger]

vertical lines times horizontal lines.

"1k" is 1280x720
2k is technically 2048x1080, but 1920x1080 is basically "2k"
4k is 4096x2160
8k is 7680x4320
16k is 16,000 x 8,000 somn and so on.
32k is 32,000 x 16,000 etc. etc.

Originally Posted by webdev511

A lot of people can't tell the difference between 720p & 1080p. I wonder how they're going to do with 2k?

&the future isn't just increased resolution, i predict higher color depths, holodecks like star trek TNG or other alternate 'augmented' reality type stuff. we've come to the end of "2D" regular ole video entertainment.

[Lee Stewart]

Originally Posted by JediFonger

vertical lines times horizontal lines.

"1k" is 1280x720
2k is technically 2048x1080, but 1920x1080 is basically "2k"
4k is 4096x2160
8k is 7680x4320
16k is 16,000 x 8,000 somn and so on.
32k is 32,000 x 16,000 etc. etc.



&the future isn't just increased resolution, i predict higher color depths, holodecks like star trek TNG or other alternate 'augmented' reality type stuff. we've come to the end of "2D" regular ole video entertainment.

Support for 4K x 2K Video format

What does 4K x 2K refer to?

4K x 2K is a term used to describe displays with resolutions that are essentially four times that of a 1080p device – or roughly 4,000 lines wide by 2,000 lines high. The HDMI 1.4 specification supports multiple 4K x 2K formats:

•3840 pixels wide by 2160 pixels high @ 24Hz | 25Hz | 30Hz
•4096 pixels wide by 2160 pixels high @ 24Hz

http://www.hdmi.org/manufacturer/hdm..._4_faq.aspx#18

[Lee Stewart]

I believe there will be a market for 4K abit a small one. For those with displays 55 inches and larger.

[Trekker4Life]

That's about right... 10 years. HD-DVD and Blu-ray got rolling around 2007 right? Get ready for the Ultra-highdef format war.

[Lee Stewart]

Originally Posted by Trekker4Life

That's about right... 10 years. HD-DVD and Blu-ray got rolling around 2007 right? Get ready for the Ultra-highdef format war.

I don't think so - the market will be too small to fight over. Like the DVD-A and SACD debacle - it will be avoided.

[David Susilo]

I think they'd better deal with the colour depth first before dealing with higher resolution.

[Lee Stewart]

Originally Posted by David Susilo

I think they'd better deal with the colour depth first before dealing with higher resolution.

Unfortunately, if they don't expand the dynamic range of the video signal, then adding bit depth will only increase the accuracy of color rendition. It will be a subtle change, where increasing the resolution by 4X will be much more noticeable.

[Trojja]

Originally Posted by worth

Anything beyond 2K is massive overkill in a home setting. I've seen test footage of 35mm film scanned at both 2K and 4K, and even on a fifty foot screen, it was hard to discern much of a difference.

yeah, the next important steps in screen technology will be things that help image quality, color production etc like LED backlit and OLED.

[JediFonger]

that's completely wrong in usage. they are technically correct, since "K" is just basically kilo and means a thousand.

but the common usage is applies to width being the "nK". here:

it is common place within motion picture industry to refer to "nK" image "quality", where n is a (small, usually even) integer number which translates into a set of actual resolutions, depending on the film format. As a reference consider that, for a 4:3 (around 1.33) aspect ratio which a film frame (no matter what is its format) is expected to horizontally fit in, n is the multiplier of 1024 such that the horizontal resolution is exactly 1024n points. For example, 2K reference resolution is 2048×1536 pixels, whereas 4K reference resolution is 4096×3072 pixels. Nevertheless, 2K may also refer to resolutions like 2048×1556, 2048×1080 or 2048×858 pixels, whereas 4K may also refer to 4096×3112, 3996×2160 or 4096×2048 resolution.

http://en.wikipedia.org/wiki/Display_resolution

so that HDMI revision 1.4 should've just stuck w/"4k" and end w/that. though HDMI already supports the "2k" 1080p.

Originally Posted by Lee Stewart

Support for 4K x 2K Video format

What does 4K x 2K refer to?


http://www.hdmi.org/manufacturer/hdm..._4_faq.aspx#18

[David Susilo]

Originally Posted by Lee Stewart

Unfortunately, if they don't expand the dynamic range of the video signal, then adding bit depth will only increase the accuracy of color rendition. It will be a subtle change, where increasing the resolution by 4X will be much more noticeable.

I understand, but what's the point of getting more resolution instead of upgrading the dynamic range, colour depth, accuracy etc.

If they introduce 4k AND upgrading the colour and dynamic range aspects, that's fine, but from SD to HD to U-HD with the same 8-bit colour, IMO, is just ridiculous.

[JediFonger]

i would luv to increase the color depth!!! that would rock!!! and don't just go from 8-bit to 10-bit, go ALL OUT to 16-bit =).

[David Susilo]

I really think so too. It's about time the standard moves to 16 bit colour.

Ideally, of course, if we can have 1080p res on 2.35:1 ratio movies, 16 bit colour, 5.1 lossless and use the entire 50 GB capacity of BD using AVC compression, it'll be enough for me.

[Lee Stewart]

Originally Posted by JediFonger

that's completely wrong in usage. they are technically correct, since "K" is just basically kilo and means a thousand.

but the common usage is applies to width being the "nK". here:
http://en.wikipedia.org/wiki/Display_resolution

so that HDMI revision 1.4 should've just stuck w/"4k" and end w/that. though HDMI already supports the "2k" 1080p.

I think you are misinterperting what I posted. The HDMI links says 4K X 2K which is one of the ways of saying 4K. That's 8 Megapixels.

[Lee Stewart]

Originally Posted by David Susilo

I understand, but what's the point of getting more resolution instead of upgrading the dynamic range, colour depth, accuracy etc.

If they introduce 4k AND upgrading the colour and dynamic range aspects, that's fine, but from SD to HD to U-HD with the same 8-bit colour, IMO, is just ridiculous.

What makes you think that Hollywood would give consumers the same level of performance that they use?

[Lee Stewart]

Originally Posted by JediFonger

i would luv to increase the color depth!!! that would rock!!! and don't just go from 8-bit to 10-bit, go ALL OUT to 16-bit =).

1. if you don't increase the dynamic range then increasing the color bit depth only improves the accuracy of color rendition. All you are doing is increasing the number of colors and gray scale steps within a given range. The change would be subtle.

2. Almost all humans cannot tell the difference between 12bit and 16bit. The eyes strength does not inlude the ability to see very large differences in shades of color.