HDR Discussion Thread

[ray0414]

Originally Posted by HDTV1080P

Some 4K Ultra HD Blu-ray discs do not have any HDR at all. Are you saying that any Dolby Vision encoded Blu-ray disc will also be encoded with HDR10 as a base layer?

Yes that is correct.

[PRO-630HD]

No question, the DV 1080p enhancement layer will include a HDR10 base layer on UHD bluray as required by specification.

[Brightstar]

I have been looking around at UHD tvs and they are getting cheaper but they dont have HDR . Will all UHD tvs go very cheap if they dont have HDR ?

[DanBa]

At the moment, the HDR10 stream of a Dolby Vision-encoded UHD Blu-ray disc should be mastered at 4000 nits, the HDR10 stream of a HDR10-encoded UHD Blu-ray disc at 1000 / 1200 nits.

[jono3000]

Originally Posted by DanBa

At the moment, the HDR10 stream of a Dolby Vision-encoded UHD Blu-ray disc should be mastered at 4000 nits, the HDR10 stream of a HDR10-encoded UHD Blu-ray disc at 1000 / 1200 nits.

*Should* but the current level for HDR10 has varied by studio to 10000 nits, according to other threads.

Sent from my Nexus 6P using Tapatalk

[DanBa]

As far as I know, there is currently no reference mastering display which can hit 10000 nits.

"For HDR, there are 3 displays that I've heard of being used.
One is a custom firmware version of the Samsung display, so zone backlighting and a PVA panel, good for 1200nits.
The other LCD based one is the Dolby Pulsar good for 4000nits.
The last is the Sony BVM-X300 OLED which can hit 1000nits"
[Joel Barsotti, SpectraCal]
http://www.avsforum.com/forum/139-di...l#post42356233

Life of PI static metadata:
MasteringDisplay_ColorPrimaries : R: x=0.680000 y=0.320000, G: x=0.265000 y=0.690000, B: x=0.150000 y=0.060000, White point: x=0.312700 y=0.329000
MasteringDisplay_Luminance : min: 0.02 cd/m2, max: 1200 cd/m2

[Geoff D]

^ Those primaries are exactly in line with the P3 gamut.

[Penton-Man]

Originally Posted by DanBa

[I]"For HDR, there are 3 displays that I've heard of being used.
One is a custom firmware version of the Samsung display, so zone backlighting and a PVA panel, good for 1200nits.

Life of PI static metadata:
MasteringDisplay_ColorPrimaries : R: x=0.680000 y=0.320000, G: x=0.265000 y=0.690000, B: x=0.150000 y=0.060000, White point: x=0.312700 y=0.329000
MasteringDisplay_Luminance : min: 0.02 cd/m2, max: 1200 cd/m2

Before Pi, the Samsung was also used to master this demo clip….
https://forum.blu-ray.com/showthread...r#post11248646

[Penton-Man]

Originally Posted by DanBa

"For HDR, there are 3 displays that I've heard of being used.

The other LCD based one is the Dolby Pulsar good for 4000nits.

Pictured in action on the left (boasts ~ 1400 zones) - https://forum.blu-ray.com/showthread...r#post11977281

To anyone contemplating a purchase, FOV is 33° at a 1.5 m viewing distance.

[Penton-Man]

Originally Posted by DanBa

"For HDR, there are 3 displays that I've heard of being used.

The last is the Sony BVM-X300 OLED which can hit 1000nits"

First revealed to the public at a SMPTE meeting back in 2014 (and also exclusively to Blu-ray.com membership)….
https://forum.blu-ray.com/showthread...00#post9910402

P.S.
Reference the 3 min. mark of that old YouTube clip, as the title of the YouTube clip may be misleading to current discussion because the model name/number (BVM-X300) was not mentioned at that NAB 2014 interview with Gary.

[Penton-Man]

To give some credit to another helpful display manufacturer, the 4000 nits Sim2 (http://www.sim2hdr.com/hdrdisplay/hdr47e_s_4k ) has been extensively used for HDR development/evaluation by more than one standards organization (including the BDA) as well as for the mastering of HDR demo clips at various trade shows.

[Penton-Man]

Originally Posted by jono3000

nits

jono, with regards to the latest on the *nits race* horizon, so to speak, the newest R&D involves, for one thing, Sony achieving 4,000 nits of peak brightness in experimental TV sets, like for instance the one displayed at the last CES.

The goal is to produce a TV set with thousands of local dimming zones so that the light output can be modulated/per zone resulting in higher nits than current LCD/LED consumer sets and bring that technology to the consumer market.....keeping power consumption restrictions in mind.

[Penton-Man]

Viewing (in a SKY Deutschland lab in Munich [for internal test purposes]) a live soccer match played in Wolfsburg, Germany…

in the middle is an HDR commercially available display but supplemented with special firmware which supported PQ as well as HLG and which one could manually toggle between both HDR solutions for the test

on the left is an older UHD/4K (SDR capable only) consumer display used to view the imagery in SDR, simultaneously for evaluation

on the right is the regular HD broadcast which most sports fans viewed



Although comparison was not the primary goal of the trial, unscientific picture quality conclusions by observers were that the HDR imagery looked better than the SDR imagery (although not as dramatic as some HDR finished motion pictures or trade show demos, but rather pleasing in a more subtle fashion) and with regards to HDR, that PQ (ST 2084) was indistinguishable from HLG (hybrid log gamma) for this particular use case.

[Geoff D]

Heh. That "older TV" is the same model as mine, from the looks of it

[Penton-Man]

You picked up on that.

[Penton-Man]

In regards to the production of higher peak brightness displays, I’ll also mention that last year Pat (https://www.linkedin.com/in/pat-griffis-217ab11) predicted that this year (2016) there would be a commercially available LCD/LED 2,000 nit monitor having only an 80 watt power consumption.

We’ll see. I think that timeline is quite overly optimistic, but there is a definite behind the scenes R&D push by some manufacturers to produce higher nit displays.

[Penton-Man]

Excuse if I mostly offer heads-ups to/for local (Hollywood) events. To help remedy that, for the UKers reading….http://www.ukscreenassociation.co.uk/events/item/4699
This event ^ is definitely the place to be if you want to hear about HDR from some of the best, as bolded at the bottom of the page.

[ray0414]

Comcast today announced an hdr set box available July 4th


http://www.multichannel.com/news/cab...ble-box/405030

[Richard Paul]

SMPTE 2094-10 (Dolby) and SMPTE 2094-40 (Samsung) have proposals for the upcoming HEVC meeting.

[puddy77]

HDR, Resolve, and Creative Grading

A very long and thorough overview and commentary of HDR from the perspective of a colorist.