HDR Discussion Thread

[avs commenter]

Originally Posted by BrownianMotion

It wasn't actually native 4K, which again, goes to show that even upscaled 4K can look very sharp and detailed, especially when paired with HDR. The cameras they used were 1080p, but they upscaled to 4K for delivery.



It was supposed to be HDR via the Fox Sports app. Did you not have the proper equipment for HLG over HDMI?

Does AppleTV do HLG?

[BrownianMotion]

Originally Posted by avs commenter

Does AppleTV do HLG?

I believe it doesn't. That explains it.

[Penton-Man]

Originally Posted by LordoftheRings

Disney

and Sony make peace....https://variety.com/2019/film/news/s...an-1203351489/

[Penton-Man]

Originally Posted by BrownianMotion

It wasn't actually native 4K, which again, goes to show that even upscaled 4K can look very sharp and detailed, especially when paired with HDR. The cameras they used were 1080p, but they upscaled to 4K for delivery.

yes, integer factor upscaling of native 1080 (full HD) x 2 = 2160 (4K) can look pretty fine even with current traditional (non-AI) upscaling methods, e.g. - https://www.youtube.com/watch?v=bGUDHdnnp4c#t=2m27s

non-integer (fractional) scaling can be more problematic if you’re really picky as to maintaining the sharpness of the original native content

[LordoftheRings]

Originally Posted by Penton-Man

and Sony make peace....https://variety.com/2019/film/news/s...an-1203351489/

Good sportsmanship, good for business too.
_____

* In regards to 4K HDR and sports; it looks ravishing, even from 1080p upscaled to 4K.
This should be the best indicator to the next TVs we're going to purchase...8K...OLED & MicroLED.

[Penton-Man]

Originally Posted by LordoftheRings

the next TVs

scroll down to the red in 2017 post – https://forum.blu-ray.com/showthread...v#post13434815

I should have patented that ^ phrase for myself -> https://www.tvtechnology.com/atsc3/c...n-tv-name-logo

[Penton-Man]

Originally Posted by Penton-Man

A recording of the event – https://forum.blu-ray.com/showthread...0#post16859400
will be published next week at https://colour.training/

[mrtickleuk]

Originally Posted by BrownianMotion

I believe it doesn't. That explains it.

So - why not, and how long are Apple going to hold out and not fix this? We've all known for many years that HLG is going to be the required standard for live broadcasting of HDR.

[BrownianMotion]

Originally Posted by mrtickleuk

So - why not, and how long are Apple going to hold out and not fix this? We've all known for many years that HLG is going to be the required standard for live broadcasting of HDR.

Agreed, it's strange. My Amazon Fire Stick 4K supports all HDR formats.

[Penton-Man]

Two things regarding -
https://www.thebroadcastbridge.com/c...ture-guideline

from there ^ “Another enhancement is dynamic metadata, which improves the way TVs render HDR by providing instructions on a frame by frame basis, as opposed to static metadata which changes only with the whole content, not down to frames. Without metadata at all, displays would just render HDR images either as over-bright, washed out SDR images, or, very dark images with little detail. Static metadata ensures that account is taken of the extra range included even when the TV is incapable of displaying that fully. In that case if say the range of the content was up to 4000 Nits but the TV was only capable of 800 Nits, then it would render pixels as realistically as possible within these limitations, but without being able to address the individual requirements of each frame. With dynamic data a given frame may be confined within a much smaller Nit range than others and this can be exploited to render it accurately without worrying about compensating for the display’s limitations.”

In retrospect, looking back I’m kind of disappointed that the BDA visual performance study groups (which preceded the Ultra HD Forum) didn’t push for dynamic metadata approach(s) as being the mandatory standard requirement from the get go for their HDR video format (BDMV) and not alternatively the static metadata option (same thing goes for the CEA back then which marched in lockstep – https://webstore.ansi.org/standards/...612015-1528168 ) given the static metadata’s (HDR10) inherent issues with TV implementations. Although, I empathize with the belief at the time that something needed to be introduced without a really long delay in order to boost physical media purchasing momentum with streaming becoming more and more popular, as traditional Blu-ray was becoming rather long in the tooth and collectors kept pressing with “When”, “Why is it taking so long”, etc. for something better.

Secondly, from the same article -
“The Ultra HD Forum has identified the sweet spot for CAE being for delivery of 2160p60 (4K) content at bit rates between 9 Mbps and 15 Mbps. This is because within this range of bit rates 4K content can be delivered at the same quality as with CBR at the recommended rate around 22 Mbps. In the case say of standard full HD at 1080p the efficiency savings are rather less because the content is at a lower resolution in the first place. Presumably then the potential for CAE would be even greater for 8K content when that starts being streamed.”

^ I do like seeing a precise numerical range assigned by the Forum as to the potential of the value of Context/Content Aware Encoding –
https://files.brightcove.com/brightc...epaper-cae.pdf
which is one foray into applications of machine learning for better video outcomes which I’ve mentioned in previous posts.

[Penton-Man]

Originally Posted by BrownianMotion

The Thursday Night Football game isn't being shown in UHD/HDR here in Canada, but the image quality is getting rave reviews from those in the US.

I know the game was in Green Bay but with regards to Eagle fans in Philly (since I lived there for a time and attended a few games), as we move towards Christmas and Santa, I’m reminded of this infamous event -

Booing Santa - YouTube

[LordoftheRings]

After today only two more days to go ... end of September ...

• https://forum.blu-ray.com/showpost.p...ostcount=10871
Right now with 53 hours to go ... 3,621,557 views
Almost 300,000 views (minus 20,000)

[Penton-Man]

Originally Posted by LordoftheRings

I see someone’s been leasing my signature pic collection, ergo, for new readership a flashback to a hint as to the ambience of thee inside - https://forum.blu-ray.com/showthread...e#post15774685

[Penton-Man]

Originally Posted by LordoftheRings

After today only two more days to go ... end of September ...

• https://forum.blu-ray.com/showpost.p...ostcount=10871
Right now with 53 hours to go ... 3,621,557 views
Almost 300,000 views (minus 20,000)

Good to hear as I’ve been MIA for more than several days this month as well as a couple of our other regular contributors and I wouldn’t want to lose Waboman -

Originally Posted by Waboman

This is your one stop thread for poles,....

as a fellow utility pole aficionado and reader of this thread, so a, as yet unposted, new one –

[Penton-Man]

Before dem movie stars arrived, scouting the staging location (pole on the right Wabo ) -



for Tom and Jen’s iconic ride –

[LordoftheRings]

Nice spot to relax with nachos and cervezas and topless jet planes.
...And right here with Tom, Chuck, Jerry and Bruce.

I see someone’s been leasing my signature pic collection, ergo, for new readership a flashback to a hint as to the ambience of thee inside - https://forum.blu-ray.com/showthread...e#post15774685

We're all expendable, except for this guy ... that's the one you want to make sure is the inspiration for Tom Gun: Maverick ...



Number two is Bruce Lee of course...the legend lives on ...

[Penton-Man]

Originally Posted by LordoftheRings

Jerry and

As they’re good people, for Jerry and Ang’s sake I hope Gemini Man at least does better than Billy Lynn. Irrespective of anything else, simply being a moto man – https://forum.blu-ray.com/showthread...e#post16768709

Originally Posted by Penton-Man

This is a pic of one side wall in one of our TV rooms that I have motorcycle remembrances (framed photos, medals, my finisher pins, etc.), scuba pics from around the world and you’ll note prominently in the lower level around the wall mounted side speaker, 3 poster-sized pics of ‘the lady’ in her heyday.

, I plan on seeing it at least at 60fps to critique the riding - https://www.slashfilm.com/gemini-man-clip/ with my buddies.

[Penton-Man]

Originally Posted by phobicsquirrel

Sexy

spec’d laser emitting box - https://www.installation-internation...aser-projector

[Penton-Man]

Originally Posted by Penton-Man

visual performance study

Speaking of which, some upcoming presenters who continue to be cutting edge with regards to the investigation of HDR, “Perceptual Estimation of Diffuse White Level in HDR Images” - http://www.imaging.org/site/AsiCommo...ion/Login.aspx

[Penton-Man]

Originally Posted by Penton-Man

plan on seeing it at least at 60fps to critique the riding....with my buddies.

and better yet, if I can herd them altogether to view Gemini Man in 3D 120 fps at my local top notch (Dolby) cinema –

Gemini Man - Trailer | Dolby Cinema | Dolby - YouTube