HDR Discussion Thread

[Penton-Man]

Originally Posted by Richard Paul

David Wood who is chairman of the DVB work group talked a bit about the HDR plans for DVB Phase 2.

And, for those readers who may not already know, among other things, was also the engineer who assigned the number 2020 to ITU-R BT.2020 (and, for a reason ). Anyway, David’s back on the tube with a very recent EBU tech clip…..

Why are Screens Curved? - YouTube

[Penton-Man]

Originally Posted by Penton-Man

A bit on broadcast….
http://www.nbcolympics.com/4khdr

Captured by Sony HDC-4300 4K (broadcast) cameras using the future proof S-Log3 transfer function (which can preserve up to 20 stops dynamic range even though state of the art studio/broadcast cameras (the HDC- 4300) are capable of ~14 to 15 stops dynamic range currently). For the Opening Ceremony in HDR, the recorded signal is then converted to PQ (ST 2084) for transmission. Grading planned at 1000 nits peak brightness.

Canon 2/3 inch 4K lenses . < Shout out to Larry T. and the company in the YouTube at the bottom of the last page.

[Penton-Man]

Throwback Thursday Thought:

Given that some claimed the format would never even launch, this coming out was not too shabby…..http://variety.com/2016/digital/news...or-1201804322/

[RockyIII]

Do you guys know if picture settings for hdr and Dolby vision are the same in terms of contrast, back light, color gamut?

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[Opips3]

Originally Posted by RockyIII

Do you guys know if picture settings for hdr and Dolby vision are the same in terms of contrast, back light, color gamut?

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Dolby vision more wide color, deep blacker and fix contrast dimmed brighter light

I said difficult. HDR is not deep black. More like brightness and contrast.

Whatever. Stick to Atmos or DTS:X are better! Do you agreed with me?

[Penton-Man]

Originally Posted by Penton-Man

nbcolympics

Captured by Sony HDC-4300 4K (broadcast) cameras using the future proof S-Log3 transfer function (which can preserve up to 20 stops dynamic range even though state of the art studio/broadcast cameras (the HDC- 4300) are capable of ~14 to 15 stops dynamic range currently). For the Opening Ceremony in HDR, the recorded signal is then converted to PQ (ST 2084) for transmission. Grading planned at 1000 nits peak brightness.

^ As confirmed by the press….4 days later -> http://www.sportsvideo.org/blogs/?bl...emony-coverage

Something else readers should be aware of with regards to how far the production technology has developed is that other event testing has shown it possible to do simultaneous 4K HDR and HD SDR live productions by a single video group (one truck of engineers, rather than a distinct HDR truck and a distinct SDR truck). In time, this simultaneous live dual production technique should become adopted for future sporting events and other broadcast delivery.

P.S.
Not sure if any readers here watched it on TV (other than Tob and myself), but last week with the soccer match between Arsenal and the MLS All-Stars in San Jose, Ca., at least a quarter of the near side of the pitch was obscured by dark shadows from the stadium stands for about the 1st half of the contest and the imagery just screamed for HDR production as so much detail was lost when the players ventured into that part of thee abyss like field.

[Penton-Man]

I received a phone call just before noon from someone asking me if the Ultra HD Blu-ray and 4K forum of Blu-ray.com was the longest running and most popular (by total viewership stats of all included threads) English-speaking subforum dedicated to this particular topic on the internet.

I don’t know for sure, but I answered the caller by ‘I think so’. If anyone knows otherwise please inform.

[jono3000]

Originally Posted by Penton-Man

I received a phone call just before noon from someone asking me if the Ultra HD Blu-ray and 4K forum of Blu-ray.com was the longest running and most popular (by total viewership stats of all included threads) English-speaking subforum dedicated to this particular topic on the internet.

I don’t know for sure, but I answered the caller by ‘I think so’. If anyone knows otherwise please inform.

Someone phoned you to ask about a forum? How odd!

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[Penton-Man]

Originally Posted by jono3000

Someone phoned you to ask about a forum? How odd!

Came up in passing during a conversation dedicated to more confidential matters. So, I assume nobody disputes the *title*. Good to confirm Blu-ray.com is the leader of the UHD/4K online pack.

[PRO-630HD]

Penton-Man

Can you explain to me why the use of a 128gb disc was not included in the UHD specifications? I am still blown away by this. I realize the 128gb discs are write once but again that was in 2010. That could easily be updated. In 2005 bluray was a non existent format with no discs of any kind available. Over time costs and yield rates of quad layer discs would surely decrease! For $30 a title I don't see quad layer discs as cost prohibitive. What is the real reason the 133gb discs were not included as the max disc capacity is far lower than I would have imagined for UHD.

Update it looks like they simply passed on putting 133gb discs into the specs.

http://www.kitguru.net/components/op...uarter-report/

While it is logical that the BDA decided not to wait till Sony and Panasonic develop their new optical disc standard with recording capacity of at least 300GB per disc (which is expected to be ready by late 2015 and which will be required for 8K UHD movies in 7680*4320 resolution several years from now), it is rather surprising that the Blu-ray disc association decided not to use 133GB media for the UHD BD standard

What were they thinking?!

[RockyIII]

Can anyone explain why Pled HDR Standard has gamut on Normal and not Wide?

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[Opips3]

Originally Posted by RockyIII

Can anyone explain why Pled HDR Standard has gamut on Normal and not Wide?

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I don't understand your question. You mean OLED HDR standard?

I know HDR and SDR are difference. OLED has only 500 nit max.
LCD with a high brightness backlight producing a 1,500 nit!!

Gamut is DCI-P3. Rec.2020 is Color wide.

HDR Enabled for HDMI 2.0a and HDCP 2.2 only.

[RockyIII]

Originally Posted by Opips3

I don't understand your question. You mean OLED HDR standard?

I know HDR and SDR are difference. OLED has only 500 nit max.
LCD with a high brightness backlight producing a 1,500 nit!!

Gamut is DCI-P3. Rec.2020 is Color wide.

HDR Enabled for HDMI 2.0a and HDCP 2.2 only.

Yes I meant OLED HDR.. If the theory is that HDR uses WCG why is HDR Standard mode set at colt gamut Normal?

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[Penton-Man]

Where’s PeterTHX? ….expedited deployments…http://investor.dolby.com/releaseDet...leaseID=983428

[Penton-Man]

Originally Posted by RockyIII

Yes I meant OLED HDR.. If the theory is that HDR uses WCG why is HDR Standard mode set at colt gamut Normal?

I think I understand your confusion……it’s a problem in terminology rather than flawed theory.

If the ‘Normal’ color gamut setting (as opposed to ‘wide’ or ‘extended’) works best for viewing HDR content with that particular brand or model then it would be a little confusing idiosyncrasy in TV menu labeling when thinking in terms of the true meaning (color science) of BT. 2020, which is wider than 709.

This does lead me to one question I’m occasionally asked….”How much color benefit do we/or would we get out of SDR BT 2020 compared to HDR BT 2020? The answer is a *modest* benefit. Think of it as only getting value outside of the smaller box in going only sideways rather than sideways and upwards (wider in all directions) like with HDR BT. 2020.

[Geoff D]

Well, I'm only getting SDR 2020 (and what my TV can then map to its native gamut, at that) and it's more than a modest benefit to my eyes, the colour seems to be so much more natural (comparing the two I really notice the yellowy cast to skin tones on regular Blu-ray) but it's also richer and more deeply defined at the same time. It's kinda hard to explain!

[Penton-Man]

Originally Posted by Geoff D

Well, I'm only getting SDR 2020 (and what my TV can then map to its native gamut, at that) and it's more than a modest benefit to my eyes, the colour seems to be so much more natural (comparing the two I really notice the yellowy cast to skin tones on regular Blu-ray) but it's also richer and more deeply defined at the same time. It's kinda hard to explain!

*modest* gain (from SDR 709) in comparison to what WCG & HDR together brings. You upgraded the living space of your rancher house with a roughly 25% addition which is substantial, good show ….but, a relatively modest upgrade compared to moving into a 2 story (with attic) mansion house.

[Penton-Man]

Originally Posted by Richard Paul

ATSC 3.0

medals…https://twitter.com/NABCTO/status/762634782723436545

[Geoff D]

Originally Posted by Penton-Man

*modest* gain (from SDR 709) in comparison to what WCG & HDR together brings. You upgraded the living space of your rancher house with a roughly 25% addition which is substantial, good show ….but, a relatively modest upgrade compared to moving into a 2 story (with attic) mansion house.

Eh, them bigger houses need a lot more maintenance, and I'm still so pleased with what I am getting (wildly varying SDR conversions aside) because I never, ever expected to get anything like a 25% increase on a 2014 4K set.

[Deciazulado]

Originally Posted by RockyIII

Yes I meant OLED HDR.. If the theory is that HDR uses WCG why is HDR Standard mode set at colt gamut Normal?

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ok if you keep this up soon it will be gone.

The HDR Standard mode is set to Normal the first time you turn on the TV. After you change it to Wide it stays Wide. Like frame interpolation was on. Like many defaults on a TV when you turn them on the first time. I don't know why you have to ask this question everywhere I go to 4k thread when all you have to do is set it to Wide, like turning frame interpolation off, edge enhancement off, sharpness to zero boost, gamma to what you want. etc etc.