HDR Discussion Thread

[Penton-Man]

Waboman, I hope you’re following this, “the ultimate maverick....” – https://www.theguardian.com/film/fil...e-big-lebowski

Keep us informed.

[Staying Salty]

Originally Posted by stl8k

HDR Nerdery from LG Display...

"High Dynamic Range (HDR) content standards such as HDR10, Dolby Vision, HLG (Hybrid Log Gamma) have been presented over a last couple of years, and these standards commonly have both wider dynamic range and color gamut than that of the legacy content. However, it is practically hard to fully satisfy the HDR content standards with the current TV technology. Although various standards for display metrology regarding HDR content standards have been released to evaluate the performance of HDR TVs, it has been controversial whether the performance obtained from measurements using artificial test patterns is well consistent with the actual performance of HDR TVs from which viewers are expecting. For this reason, we examined how the performance of HDR TVs is varied in case measurements are made using actual HDR contents instead of artificial test patterns in terms of peak luminance, black level, and Electro-Optical Transfer Function (EOTF) accuracy. Our investigation was carried out using two different types of TV, an Organic Light Emitting Diode (OLED) and a Liquid Crystal Display (LCD). As a result, while the measurements of the OLED TV were quite coincided with the measurements made from artificial test patterns, those of the LCD TV were not."

https://www.ingentaconnect.com/conte...00001/art00035

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[Waboman]

Originally Posted by Penton-Man

I see you share the same sentiment as Tyler in the Youtube comments - https://www.youtube.com/watch?v=d-bvsJWmqlc#t=1s

I am but an analog man in a digital world.

[Show spoiler]

Originally Posted by Penton-Man

Waboman, I hope you’re following this, “the ultimate maverick....” – https://www.theguardian.com/film/fil...e-big-lebowski

Keep us informed.

You know I abide. Yeah, I saw this the other day. It's looking like a Super Bowl ad. But dayum, how cool would a Big Lebowski sequel be? I'll tell you how cool. Too cool.

THE BIG LEBOWSKI 2 Trailer Teaser | HD (Jeff Bridges) 2019 - YouTube

[ray0414]

Originally Posted by Staying Salty

.

Not surprising at all. Lcds are great at test patterns but real content is a different story. For example a 2000 nit lcd can't come anywhere close to 2000 nits on smaller sizes such as 2% windows or less.

[StingingVelvet]

Originally Posted by ray0414

Not surprising at all. Lcds are great at test patterns but real content is a different story. For example a 2000 nit lcd can't come anywhere close to 2000 nits on smaller sizes such as 2% windows or less.

10% window in d65 is the standard "test size" from most reviewers and such. A high-end LCD can put out 1500+ nits in that kind of test, but an OLED only 800 or so. It's still a valid comparison.

OLEDs of course still have plenty other advantages. Nothing is the best at everything.

[Geoff D]

And what LCD was it? OLED is pretty much a known quantity, but LCDs are all over the map when it comes to backlighting and how it affects HDR performance. I wonder if they were able to limit or disable ABL/ASBL when testing the OLEDS.

[DanBa]

The Asus VivoMini VC65-C1 MiniPC includes a 8th Gen Intel Core processor with UHD Graphics 630 integrated graphics processor.
https://www.asus.com/jp/Mini-PCs/VivoMini-VC65-C1/
https://www.anandtech.com/show/13903...y-core-i78700t
https://en.wikichip.org/wiki/intel/uhd_graphics/630
https://www.avsforum.com/forum/465-h...l#post57490456

The MiniPC "VC65-C1 G7010ZN" based on Intel Core i7-8700T and the MiniPC "VC65-C1 G3066ZN" based on Core i3-8100T (Y81,481 / $740) have a UHD Blu-ray drive.
Watching UHD Blu-ray films requires PowerDVD software.
https://www.cyberlink.com/products/p...ons_en_US.html
https://jp.store.asus.com/store/asus...tID.5282472200

[Penton-Man]

Live.....

USS Michael Monsoor (DDG 1001) Commissioning Ceremony - YouTube

[DisplayCalNoob]

Originally Posted by Staying Salty

.

I agree, I believe one of those test patterns is Sharpness. The old flat static test pattern used for SDR sharpness calibration, IMO is not sufficient for HDR sharpness calibration.

I'm no expert, and have never created a test pattern, never encoded any bit of content, but my eyes see more detail, not sharpness alone when I move the setting up from zero and pass factory settings. DV has a "Enhance Detail", feature and this may be in reference to highlights, but the DV demo with narration, suggest that it is in relation to image detail.

[StingingVelvet]

Review sites like Rtings will tell you what sharpness off is now-a-days, so I don't see much use for test patterns anymore (for us).

[Geoff D]

I still like to gauge such things for myself TBH. But then I would say that.

Noob, what TV do you actually have?

[Kris Deering]

Originally Posted by Geoff D

No mate. Dolby Vision in the cinema is not the same thing as Dolby Vision in the home, you can't just press a button and translate a 108-nit grade designed for the specific gain & contrast of Dolby Cinema's screens and projektors into a grade intended for direct-view home display at up to 4000 nits. As the video ^ posted by Penton sez, the theatrical grade is a "solid starting point" for the home grade but they really are quite different animals. It's when that home deliverable is graded to the satisfaction of all involved that the other major functions of DV like the metadata creation and subsequent generation of possibly multiple trim passes e.g. HDR10, SDR are carried out.

This is why, despite some people being told this repeatedly in threads like that for Bohemian Rhapsody, Fox can and do theatrically grade in DV but then go on to do their own thing when it comes to the consumer deliverables. One doesn't always beget the other, and vice versa of course: something like the original Cloverfield wasn't finished in DV theatrically but there it is in DV on UHD disc nonetheless.

I was thinking the other way around. I am WELL aware that theatrical grades are not even remotely the same as home grades. What I'm saying is that I wonder if they are making multiple deliverables at once. So they can make the HOME grade and then the lower grades from that (theatrical deliverable). It would make WAY more sense if you are doing grading with a DP and colorist to do all the deliverables at once (approve LUTs, trim passes) than have them keep coming back over and over again. I know when I've talked to Stacey he's mentioned that with the Dolby authoring software you can take a single piece of content and have a multitude of different output options for the grade. This is what I was referring to.

[Kris Deering]

Originally Posted by Penton-Man

^ named in honor of Medal of Honor recipient Michael A. Monsoor

I was slated recently to ride the DDG-1000 but the testing we are going to do keeps getting delayed. But I officially retired from my government work as of a week ago and I'm now in this AV industry full time, so no more riding America's great war fighting machines for me!

[DisplayCalNoob]

Originally Posted by Geoff D

I still like to gauge such things for myself TBH. But then I would say that.

Noob, what TV do you actually have?

2016 Vizio P Series P55 IPS(RGB) panel 600 nit 126 dimming zones

Sharpness @ 0, source SDR is sharp and detailed, HDR/DV fine detail is lost @ 0. Sharpness @ 20 reveals detail without any artifacts, not just close ups. The setting also seems to affect depth.

Atomic Blonde has a lot of texture detail, Charlize black nit cap, her jacket. It's apparent in a lot of clothing, like sweaters. That detail blurs at 0, this may be specific to my display or Vizio sharpness implementation. CGI like the Despicable Me series becomes rezor sharp with sharpness at 30, live action content shows artifacts in bright colors (sky).

[Penton-Man]

Originally Posted by Stacey Spears

.....It is all Navy all the time now.

Not all the time, invited speaker Major General Ronald Clark, US Army did good - https://www.youtube.com/watch?v=7ehuzHmWn4A#t=19m40s

As well as a Marine Corps vet - https://www.nbcnews.com/nightly-news...-1432212547537

https://www.facebook.com/nbcnightlyn...3248235146476/

[Penton-Man]

Originally Posted by Geoff D

Cameron

With a big endorsement of Weta –

Alita: Battle Angel | The Making of Alita | 20th Century FOX - YouTube

^ a Dolby Vision movie which may be of interest especially to Kris’s kids

[FilmFreakosaurus]

After all this time, Mo Cap still looks like... well... Mo Cap. The "photorealistic" human characters still have that animated puppet muscle movement and "look," especially in the facial region. The skin lighting and texturing and the laws of gravity working themselves upon an object... are still off. Etc.



I wish they had just used the real actress, not gone with the bug eyed CGI anime look using Mo Cap replacement, and used wire controlled stunt effects to ground it in at least some sense of reality.


Currently, it's like a Roger Rabbit animated feature with live action and animated cartoons in the same frame, but not blending and existing apart... just like Avatar.

[Staying Salty]

Originally Posted by Penton-Man

With a big endorsement of Weta –

Alita: Battle Angel | The Making of Alita | 20th Century FOX - YouTube
^ a Dolby Vision movie which may be of interest especially to Kris’s kids

[Staying Salty]

Originally Posted by FilmFreakosaurus

After all this time, Mo Cap still looks like... well... Mo Cap. The "photorealistic" human characters still have that animated puppet movement and "look." The skin lighting and texturing and gravity working itself on an object... are still off. Etc.



I wish they had just used the real actress, not gone with the bug eyed CGI anime look, and used wire controlled stunt effects to ground it in at least some sense of reality.


Currently, it's like a Roger Rabbit animated feature with live action and animation combined, but not blending... just like Avatar.

[FilmFreakosaurus]

Originally Posted by Staying Salty

If you like fake, then that's your prerogative.