HDR Discussion Thread

[Geoff D]

Right, which is what the article is all about: managing whatever is in that container so that it appears as close to the original mastering intent as possible. The blurb at the front may seem like it's telling us how to suck eggs but it's establishing the context for the explanation that follows.

[Penton-Man]

Originally Posted by Penton-Man

In some respects ^, some center in the real world being more authentically cutting-edge than the entertainment world as depicted in the TV show Pure Genius….. http://www.imdb.com/title/tt5500906/).
http://www.imdb.com/title/tt5500906/...r/rm4179689728

Follow-up to thee above ^. In the recent episode (Not Your Grandmother’s Robotic Surgery) of Pure Genius http://www.tvguide.com/tvshows/pure-...414&source=264 starting at a little before the 3 min. timestamp with regards to the military veteran totally blinded in combat and the device they portray and implant later on in the episode to enable sight.

In this linked nbclosangeles news clip is the real science and some of the actual people involved (showcasing a good friend of mine)…. https://forum.blu-ray.com/showthread...e#post12619657 who has treated military veteran blinded during the Iraq war. Theoretical models are o.k., however, the rubber really meets the road with proof by successful implementation…https://news.usc.edu/100902/mark-hum...nd-innovation/ be it in any aspect of science and technology.

[Penton-Man]

Originally Posted by bruceames

All this emphasis on container size but what really matters is whether the display will meet the metadata requirements within that container.

What Geoff said above. Plus, if you’re more into the metadata aspect…consider that SMPTE ST 2094 provides a solution through the use of content-dependent, dynamic color volume transform metadata rather than using only static display color volume metadata.

The ST 2094 suite of documents defines metadata for use in color volume transforms of content. The metadata are content-dependent and can vary scene-by-scene or frame-by-frame. The metadata are intended to transform High Dynamic Range and Wide Colour Gamut (HDR/WCG) source content for presentation on a playback display (think, for instance your home TV) having a smaller color volume than the source content’s mastering display (think, for instance, the 4000 nit Dolby Pulsar as color volume mapping is more important the more difference there is between the mastering display and the playback display and will be an essential part of the future proofing of HDR technology).

[jack831]

I recently bought a 55" LG OLed TV B6 which claimed it can support 4K resolution with HDR at 60hz.

I understand that Netflix and some Ultra Blue ray content do support 4k and HDR, but I have difficulty finding these contents at 60hz.

Do u guys know if there is any movie content exits in this format and if so which bluray player i have to use to achieve this setting? (I already have a HDMI2.0 cable)

Thank you.

[2themax]

Originally Posted by jack831

I recently bought a 55" LG OLed TV B6 which claimed it can support 4K resolution with HDR at 60hz.

I understand that Netflix and some Ultra Blue ray content do support 4k and HDR, but I have difficulty finding these contents at 60hz.

Do u guys know if there is any movie content exits in this format and if so which bluray player i have to use to achieve this setting? (I already have a HDMI2.0 cable)

Thank you.

Search for test patterns on Nexflix. They have a 4K 60Hz sample (not in HDR though).

[jack831]

Search for test patterns on Nexflix. They have a 4K 60Hz sample (not in HDR though)

Thx, i can find combinations of 4k, hdr and 60hz, just not all of them. I wonder where I can find contents with all of the above functions.

[puddy77]

Originally Posted by jack831

I recently bought a 55" LG OLed TV B6 which claimed it can support 4K resolution with HDR at 60hz.

I understand that Netflix and some Ultra Blue ray content do support 4k and HDR, but I have difficulty finding these contents at 60hz.

Do u guys know if there is any movie content exits in this format and if so which bluray player i have to use to achieve this setting? (I already have a HDMI2.0 cable)

Thank you.

Search for Meridian in Netflix. It is the only 4k 60fps HDR material I've seen so far. There are a couple of YouTube videos, but a Chromecast Ultra is the only device supporting HDR on YouTube right now.

[Penton-Man]

probably linked somewhere else around here but if not, Dolby Vision in > 50 locations, free Rogue One posters Dec. 15th at participating theaters, etc. read for details…http://www.businesswire.com/news/hom...1205005361/en/

long day for me and longer week to come….later.

[CReaper210]

Does anyone have any recommendations on what I can watch/play to see good HDR in action? Game, blu ray, streaming service, don't really care.

I just got an Xbox One S and a brand new 4k tv with HDR this week. Hooked it up and made sure all the settings were good, then tried out both Gears of War 4 and Battlefield 1 with HDR enabled and didn't really notice any improvement. I could see a difference, but it was just like the colors changed slightly.
I've never seen HDR demoed in person before so I wasn't really sure what to expect. So far, I'm underwhelmed, but I came here to see if maybe I just haven't seen it done well yet.

I also have a PS4, but I haven't tried the HDR on that yet. So if there is a particular PS4 game, I can try that too.

[zmarty]

Originally Posted by jack831

I understand that Netflix and some Ultra Blue ray content do support 4k and HDR, but I have difficulty finding these contents at 60hz. Thank you.

My YouTube channel has a lot of 4K 60fps HDR content, but unfortunately you need a Chromecast Ultra to actually play in HDR: https://www.youtube.com/channel/UCve...FNipzeAGBI5t9g

[zmarty]

Originally Posted by CReaper210

I could see a difference, but it was just like the colors changed slightly.

It is a very tricky situation because when you watch HDR content on its own it just looks OK (as it should). If you were to watch on two TVs (SDR and HDR) at the same time, the difference would be apparent. This is the problem of a single stimulus vs a comparison.

I am working on a bunch of comparison videos for HDR games. I captured the same cut scenes in SDR and HDR and will show them side by side in YouTube HDR videos. But again, you need Chromecast Ultra to see those or wait for all the devices to get the new YouTube app with HDR support.

[Penton-Man]

Originally Posted by Penton-Man

http://www.whathifi.com/news/no-you-...k-ultra-hd-yet

^ Well folks can (watch it) at the PTS, the evening of Jan. 25th after listening to the production Opening Keynote in the morning….https://tech.ebu.ch/docs/events/prod..._programme.pdf

The EBU puts on excellent events with quite knowledgeable speakers, for example, an excerpt from the last event having an HDR theme….https://forum.blu-ray.com/showthread...y#post12383297

They’re also a collaborative leader in demoing the next great frontier , namely HDR/HFR (100Hz/120Hz… https://forum.blu-ray.com/showthread...r#post12672382

PTS program draft now updated with the speakers listed (Andy and Andy) …https://tech.ebu.ch/docs/events/prod..._programme.pdf

[Pieter V]

What Is High Dynamic Range? | Netflix - YouTube

[bruceames]

Originally Posted by Penton-Man

What Geoff said above. Plus, if you’re more into the metadata aspect…consider that SMPTE ST 2094 provides a solution through the use of content-dependent, dynamic color volume transform metadata rather than using only static display color volume metadata.

The ST 2094 suite of documents defines metadata for use in color volume transforms of content. The metadata are content-dependent and can vary scene-by-scene or frame-by-frame. The metadata are intended to transform High Dynamic Range and Wide Colour Gamut (HDR/WCG) source content for presentation on a playback display (think, for instance your home TV) having a smaller color volume than the source content’s mastering display (think, for instance, the 4000 nit Dolby Pulsar as color volume mapping is more important the more difference there is between the mastering display and the playback display and will be an essential part of the future proofing of HDR technology).

So if the container size was only 1000 nits and P3 color space, would the (assumed) 1000 nit / P3 color space metadata within that container look any different, than if that same metadata was in the larger container? Does the container size have any bearing, assuming the TV can still properly map all the metadata within that container?

[Geoff D]

Of course. If the container is bigger then the metadata needs to reflect how the smaller data has been co-ordinated inside that container, because the container itself is what's being primarily decoded. The crucial thing is how that metadata is interpreted, e.g. if the metadata is both mastered and decoded correctly then a 1000-nit P3 image inside a 10,000 2020 container should look no different visually from a theoretical 'native' 1000 P3 container. But aye, there's the rub: the metadata being correctly handled at either end of the spectrum is by no means guaranteed.

[Penton-Man]

I can tell you dem color volume transforms are more complicated than balancing one’s checkbook. And as Geoff indicated, getting the proper result at the end of the pipeline is no simple task, e.g. a metadata set in ST 2094 incorporates a time interval, a window, metadata describing the targeted system display and parameters controlling the color volume transform. A receiver of the metadata can use the targeted system display metadata to select the metadata sets that are most applicable to the actual output device. In other words, a receiver of the metadata can use the targeted system display metadata to adjust the output of the color volume transform from the specified output device to the actual output device. Two different approaches have been identified as transform methods in ST 2094 applications: parametric mapping and reference based numerical derivation.

[Penton-Man]

Circa 2 years ago (12/5/2014) –

Originally Posted by Penton-Man

....check the lighting of a scene would be with the use of an HDR on-set monitor, of which, as of now, there is no practical product available for D.P.’s

And one example of how we’ve progressed since then ^….

At the Bench: A Closer Look at the DP-V2420 - YouTube

[puddy77]

Here's a good interview about Deluxe's Netflix HDR workflow: http://www.studiodaily.com/2016/12/d...d-outs-of-hdr/

[DanBa]

"BBC iPlayer will stream four stunning minutes of Planet Earth II footage in the highest quality the BBC has ever broadcast. The experimental footage will be available in Ultra HD and Hybrid Log-Gamma (HLG) on compatible connected TVs from today until early next year."
http://www.bbc.co.uk/rd/blog/2016/12...l-planet-earth





4-mn clip of Planet Earth II in HEVC HLG HDR >> (UK) IP network >> HEVC HLG HDR compliant TV

4-mn clip of Planet Earth II in HEVC HLG HDR >> (UK) IP network >> 4K SDR TV


"The BBC says that the only TVs that currently support HLG are "Panasonic's latest screens." Other TV makers have indicated that their recent displays can receive a firmware update to support HLG, but they're unlikely to do so until HLG fully takes off next year."
http://arstechnica.co.uk/science/201...r-hlg-iplayer/

[Penton-Man]

Originally Posted by DanBa

UHD Trial of Planet Earth II in HLG

Good news. Waiting on HLG HDR live transmissions of sporting events (soccer, football, etc.) where on a sunny day with some stadiums, a good portion of the field is obscured by shadow thusly decreasing detail as seen with current SDR delivery.