As always, the real issue is what the streaming services provide under normal
Internet conditions.
Suffice it to say that 360P is used far more than 4K, and 1080P is more than
adequate for any home screen, with the possible exception of dedicated home
theater rooms with screens larger than 70” diagonal.
Then there is the minor detail that real improvements in delivered video
quality are related to improved image samples - thus the move to 10 or 12 bits
per pixel for HDR and the improved color rendition from Wide color gamut
displays.
But display technology continues to evolve to higher resolutions. The new
iPhone XS displays deliver 458 pixels per inch - they offer support for Dolby
HDR10 (typical 1,000,000:1 contrast ratio) and WCG.
The real value of higher pixel densities is display oversampling for Nyquist
filtered images and the elimination of visible aliasing in unfiltered images,
such as those common to the web. As with audio sampling, we long ago passed the
point where additional image samples are needed; this assumes 4K or higher
acquisition, then resampling to 1080P for the emission master.
Regards
Craig
On Oct 16, 2018, at 10:28 AM, cooleman@xxxxxx wrote:
Well at IBC I spoke to a smaller provider that was looking to introduce an 4K
channel. But people aren't willing to pay extra like they were with HD. But
still interested for profile and marketing purposes, as people do want 4K,
they just aren't willing to pay more. So they followed Harmonic that told
them 8 Mbit/s maximum was all that is required for 4K. That would be without
the eyeQ advantage in the software compression system as they decided to stay
with hardware for another investment round.
They told me that all fellow providers in their markets felt the same, more
than 8 Mbit/s not viable.
Donald
Tore B Nordahl schreef op 16-10-2018 16:01:
8K = what a waste of delivery bandwidth to home TV viewers
4K = one can possibly justify to deliver 4K HDR to homes
1080pHDR delivery = 99% of the home TV viewers will be more than happy
Especially if viewed on a 4K HDR home monitor
2 million 8K monitors to be sold in one year? When pigs fly . . .
Tore Nordahl
Nordahl.tv LLC
Los Angeles
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