Beta
×

Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

Comments

top

New Study Shows One-Third of Americans Don't Believe In Evolution

River of Souls Look at the bright side... (1010 comments)

At least this way we know where the Neanderthals ended up...

about 9 months ago
top

HDMI 2.0 Officially Announced

River of Souls Re:Too little too late? (293 comments)

or just 2160p as it should be called

Movies come in different aspect ratios. At 1.78:1 you get 1080p or 2160p. At the also popular 2.35:1 you get ~817p. 720p likewise becomes ~544p. Those aren't really helpful for comparison since 817p isn't lower resolution than 1080p. Only the horizontal resolution is constant, so it actually makes sense to use it. The use of vertical resolution comes from the days of analog TV when only horizontal resolution was continuous, not discrete.

(I'm sure the marketing folks were salivating over it anyway.)

Also, while I haven't watched your hour-long video (summary?), I'm not sure why anyone would target 4096 pixels wide, which would make upscaling existing HD very painful. Doubling the resolution is much simpler, and I very much doubt that 4K was ever a spec as opposed to a marketing term.

Indeed, upscaling existing 1920x1080 to 4096x(aspect ratio) would be painful. Just as downscaling the 2K and 4K that movies are shot in to 1920x1080 and 3840x2160 are, but could be much better if they weren't. That is one of the points brought up in the video.

Other points in the video talk about how resolution isn't the only factor that makes the newer formats better, it is not even the most important one. The new formats also come with a wider color gamut, better compression algorithms, and so on. But one of the main points is the problem of getting movie formats cleanly scaled down to home formats. They had an opportunity here to stop doing that and they blew it.

1 year,11 days
top

HDMI 2.0 Officially Announced

River of Souls Re:Too little too late? (293 comments)

Yip it should be called 2160p.

4K is already reserved for the resolution of 4096x2160, which is the resolution of movie camera sensors and the resolution of theatre projectors.

Absolutely. I especially love that every "4K*" TV is already tagged with an asterisk with a sticker at the bottom of the TV saying "*3840x2160"....

even the lawyers knew this was a bad idea.

1 year,11 days
top

HDMI 2.0 Officially Announced

River of Souls Re:Too little too late? (293 comments)

The TV resolution specifications (720p, 1080i, 1080p, etc) were set in the 90s. It was after this that digital movie recording started with a slightly different "2K" resolution. They are different display mechanisms after all, the home TV and the cinema - even if the home TV is approaching cinema size (factoring in viewing distance).

2048x1080 is a stupid resolution. 2048x1152 would be more sane as it's a 16:9 display. Maybe this is what Full HD should have been originally instead of 1080 lines. Too late now.

"8K" in the home will be 7680x4320.

Resolutions such as 720p and 1080i were created due to transport / transmission limitations, and I would say they were more "arrived at" than set. My DLP projector is extremely similar to the one's at the cinema. Actually, 2048x1080 isn't a format, as you point out it's an aspect ratio. The movie studios use 2K, 4K, etc. to refer to the fixed number of the format, but the aspect ratio is variable as you can see with all the different ratios used by different movies. You can have 2K at 2048x2048 if you want. If they scanned old film or shot digital movies at 3840x2160, that would also fix it.

1 year,11 days
top

HDMI 2.0 Officially Announced

River of Souls Re:Too little too late? (293 comments)

"So, the whole reason for going with faux 4K (3820 x 2160 or just 2160p as it should be called) in the first place, was because existing HDMI couldn't quite hit 4096 to do the real thing."

No, that's not the "whole reason" or even part of the reason. The remaining question is uninteresting.

You may not know who Joe Kane is, but this should help: http://www.youtube.com/watch?v=0ZqhA3iIHm4 Perhaps not the whole reason, likely the main reason, but definitely part of the reason. I think the answer to the remaining question might be that they don't have a good reason...

1 year,11 days
top

HDMI 2.0 Officially Announced

River of Souls Re:Too little too late? (293 comments)

1920 multiplied by 2 is 3820.

3820x2160 is merely Quad-1080p - which at least is sane.

4096x2160 is 17:9 (ish) - I don't see the point in this resolution.

I await the pointless 5040x2160 monitors (21:9, the "new shiny standard" for widescreen monitors).

1920 (as being slightly short of 2048) is the old or maybe existing faux format, but at least they call it 1080p and not 2K. The point of 4096x2160 or if you will, 2048x1080 is that those are resolutions that movie studios actually shoot movies in, and they refer to them as 2K, 4K, 8K, etc. There are no perfect ways to convert from the movie format to the home format. Yes, you could say it is convenient to be able to double/quad our current 1920x1080, but actually that too is itself based on slightly less than the real thing. If we used the same resolutions at home, then no conversion and thus no picture and/or quality loss would happen from the conversion. I will wait for 8K and hope it is 8192x4320 and not 7680x4320, or I will just call it 4320p.

1 year,11 days
top

HDMI 2.0 Officially Announced

River of Souls Too little too late? (293 comments)

So, the whole reason for going with faux 4K (3820 x 2160 or just 2160p as it should be called) in the first place, was because existing HDMI couldn't quite hit 4096 to do the real thing. Now they come out with something that can do it, but they are sticking with 3840?

1 year,11 days
top

Barack Obama Wins US Presidency

River of Souls Rebound (3709 comments)

I love these rebound elections. Just because the last candidate sucked, everyone runs to the opposite side regardless. The next one will likely be similar, if they allow us to vote from the political re-education camps that is. -ROS

more than 5 years ago

Submissions

River of Souls hasn't submitted any stories.

Journals

River of Souls has no journal entries.

Slashdot Login

Need an Account?

Forgot your password?

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>