[opendtv] Re: TV Technology: A New Day Dawning... HDR Delivery
- From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
- To: "opendtv@xxxxxxxxxxxxx" <opendtv@xxxxxxxxxxxxx>
- Date: Sat, 11 Jun 2016 00:46:08 +0000
Donald Cooleman wrote:
Plus Technicolor adds expansion of regular SDR material to HDR, in displays
using the new software package (most likely) on one of those SoCs, announced
at CES. So, you get three products at once. LG LCD TVs had Technicolor
support and legacy expansion support announced, the OLEDS had mention of
DolbyVision support. LG is now also back with the BBC, hlg was abandoned
for HDR10 at IFA/IBC.
Word from the Technicolor CES analyst briefing was that it works and works
well.
In spite of warnings that this doesn't work well. Sort of like processing a
regular audio recording as if it were dbx-compressed, sending it through a dbx
expander on playback.
I guess that if you buy an HDR display, you want to get wowed on any source
material. That's the motivation. IIRC, didn't some of the (ill-fated) 3D TVs
similarly attempt to create stereo out of regular mono shows?
On the practical aspects of HDR, I doubt that people will go to great lengths
to darken their TV viewing venues. So this, added to the fact that people
really like bright screens (Mark Schubin reports), will probably mean that HDR
displays will be *really* bright, in the bright parts of the image.
The other thing I wonder is just how much dynamic range compression is done in
TV transmissions, as a matter of course. In audio, it's completely commonplace,
and always has been. So I wonder if HDR to SDR conversion will be markedly
better, for SDR displays, than what we're used to seeing now from TV
programming already now.
Some of the demoes look quite good, but is this exaggerated? I mean, attempts
to demo HDR on your typical and ubiquitous SDR displays has to show SOMETHING
cool, right? I'm guessing a lot of these demoes have to exaggerate the amount
of clipping and fading to black of the SDR image. Otherwise, how would you get
any amount of wow looking at the SDR demo?
Bert
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