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8K Tech Moves Forward but Will We Be Ready for It?

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Old 08-07-2017, 12:31 PM   #1
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Arrow 8K Tech Moves Forward but Will We Be Ready for It?

8K Tech Moves Forward but Will We Be Ready for It?

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Don’t worry, you won’t have to trade in your new 4K/Ultra HDTV for an 8K model any time soon but that doesn’t mean 8K technology isn’t moving forward.

Japan’s NHK continues to actively develop and demonstrate its 8K Super Hi-Vision system, which delivers four times more pixels than UHD and 16 times that of standard HD. The public broadcaster conducted a series of live tests at the 2016 Olympics in Rio and plans to broadcast the 2020 Summer Olympics in Tokyo in 8K. Sony and Panasonic have said they will roll out 8K-compatible TVs in Japan in time for those broadcasts.

But what about 8K infrastructure? Are we anywhere near ready to handle images with 33 million pixels?

In a recent blog post on DisplayDaily.com, video expert Chris Chinnock, founder and president of Insight Media, said 8K connectivity solutions are emerging even though bandwidth requirements for 8K video will be huge, especially when you factor in the impact of high dynamic range (HDR), wide color gamut, 10-bit color (minimum), and color sub-sampling on the data rate, which he calculates will be just shy of 30 gigabits per second (Gb/s).

“For distribution, [8K video] will have to be compressed — and heavily compressed,” Chinnock wrote, but pointed out that the upcoming Version 2.1 of the HDMI connectivity spec will be able to handle the higher data rates.

“In terms of bandwidth, [HDMI 2.1’s] data rate will rise from 18 Gb/s to 48 Gb/s using four lanes running at 12 Gb/s with 16/18 bit encoding that reduces the usable payload to 38.4 Gb/s,” he continued. “That’s a huge increase and is enough to support [8K]. Silicon to support this protocol is not yet available, but should be widely adopted by 2020.

“HDMI 2.1 also supports Display Stream Compression (DSC), a light compression scheme (typically up to 3:1) also used in DisplayPort. This should allow 8K, 16-bit, 4:4:4 at 60 fps or 8K, 16-bit, 4:2:0 at 120 fps over the same four lanes.

“While not all the 8K connectivity has been implemented yet, give it a year or two,” Chinnock concluded. “If that is not enough options and bandwidth, there is also a new interface being standardized by SMPTE called U-SDI. It is a 24-core multimode fiber that runs at a raw data rate of 240 Gbps (lower with error correction), and supports a maximum cable length of 100m.”
https://www.soundandvision.com/conte...we-be-ready-it
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Old 08-13-2017, 12:46 PM   #2
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I'll be ready for it.
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Old 08-13-2017, 07:08 PM   #3
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I'll be ready for it.
Early adopter first run or wait for a couple years to get the kinks out?
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Old 08-14-2017, 04:26 AM   #4
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The first presentation of NHK's Super Hi-Vision (8K) was March 2002. So there shouldn't be any "kinks" when it finally comes to market other than compression codecs.

Remember - Japan is going 8K in 2020 so by the time 8K arrives in the USA it will be a time tested format.

The big benefit I see for 8K is the ability to do Autostereoscopic 3D (no glasses) at 4K resolution. They can do it today with a 4K panel but the resolution will only be HD.
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Old 08-15-2017, 12:17 PM   #5
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Early adopter first run or wait for a couple years to get the kinks out?
I don't know yet. Depends on my financial situation. However the timing would be good if 8K TVs are affordable in 4 years because that's when I plan on upgrading.
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Old 08-15-2017, 02:28 PM   #6
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Originally Posted by Lee Stewart View Post
The first presentation of NHK's Super Hi-Vision (8K) was March 2002. So there shouldn't be any "kinks" when it finally comes to market other than compression codecs.

Remember - Japan is going 8K in 2020 so by the time 8K arrives in the USA it will be a time tested format.

The big benefit I see for 8K is the ability to do Autostereoscopic 3D (no glasses) at 4K resolution. They can do it today with a 4K panel but the resolution will only be HD.
Yeah "kinks" was the wrong word. Lol. I meant features I guess. Like how adopters got screwed out of HDR and such on early 4k sets.
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Old 08-15-2017, 05:25 PM   #7
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Yeah "kinks" was the wrong word. Lol. I meant features I guess. Like how adopters got screwed out of HDR and such on early 4k sets.
That was because the TV set manufacturers were in a rush to have something new in stores after 3DTV failed. Early Adopters usually get screwed but that is the price for being an EA.

The specs for 8K are pretty much finalized:

8K resolution
10 bit color depth (though it may go to 12 bit)
4:2:0 color subsampling
120 FPS

HDR will probably be the same as it is today: HDR10, HDR10+, HLG and Dolby Vision.

Last edited by Lee Stewart; 08-15-2017 at 05:28 PM..
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