[opendtv] Re: TV Technology: Making Live UHD HDR Production and Delivery a Reality
- From: Craig Birkmaier <brewmastercraig@xxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Sat, 13 Aug 2016 09:39:13 -0400
On Aug 12, 2016, at 9:35 PM, Manfredi, Albert E <albert.e.manfredi@xxxxxxxxxx>
wrote:
So, do we think that Craig might now understand why the Philips/Technicolor
HDR would be a great idea? Not holding my breath.
Why is it a great idea Bert? Or to be more specific, why is it better than
"other" ideas, especially considering the fact that it only addresses half the
issues on the table?
I a a very strong supporter of High Dynamic Range(HDR). But that only addresses
one aspect of improving image quality; expanding the color gamut (Wide Color
Gamut-WCG) is at least, if not more important than the dynamic range issue.
I would add, that I am not a "Jonny come lately" devotee of HDR and WCG. We
strongly advocated for both in the U.S. DTV standard in 1992.
The question is how to achieve these goals.
To date there have been no coherent discussion that address all of the issues.
Instead we have seen piecemeal efforts to attack each issue separately. Thus we
have a bunch of 4K TVs in the market already, that do not offer HDR or WCG. And
the word on the street is that these TVs offer little improvement in delivered
image quality over 1080P displays.
We now see multiple proposals for HDR and additional proposals for WCG. As
usual we are in the competitive phase of another "IP War" to determine who will
walk away with the prize. And as usual the broadcasters are pushing the false
belief that a single standard is the solution.
Apparently, more than two decades after the birth of ATSC and DVB, broadcasters
still believe we need to lock down standards in the digital world we live in
today. Never mind that these broadcasters have a long history of adopting
regional standards to protect their markets.
We now routinely work with video stream of arbitrary spatial and temporal
resolution- aspect ratio is completely flexible as well. We work with multiple
compression technologies at each stage of production and emission. And we do
all of this with mass produced computing platforms - everything from shooting,
editing, and emitting HD video streams with our phones and tablets, to 4K post
production with HDR and WCG on powerful desktop computers.
So the real question is who should decide we move forward with HDR and WCG?
Do we really need one or two point standards that reward the usual suspects in
the IP wars?
Or do we need to recognize that "being digital" means we can let the
marketplace decide?
Unfortunately it looks like another mess on the horizon. Years of arguing about
one standard to rule them all, versus focusing our efforts on the things that
really matter:
1. Creating displays that can render both HDR and WCG.
2. Creating image acquisition and image creation devices that deliver on the
promise of HDR and WCG.
3. Designing the software in both production and consumption devices that
recognize and adapt to multiple competing standards.
It's not like we must have point standards. Somehow we manage to get work done
in a world with multiple computer operating systems: Windows, MacOS, Linux and
Chromebooks for "PCs," iOS and Android for mobile devices, and...
Hope Bert gets the point!
Regards
Craig
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