Organization
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(
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)
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Ultra HD Forum
is an organization whose goal is to help solve the real world hurdles in deploying Ultra HD video and thus to help promote
UHD
deployment.
[1]
The Ultra HD Forum will help navigate amongst the standards related to
high dynamic range
(HDR),
high frame rate
(HFR), next generation audio (NGA), and
wide color gamut
(WCG).
[1]
The Ultra HD Forum is an industry organisation that is complementary to the UHD Alliance (that maintains consumer-facing logos), covering different aspects of the UHD ecosystem.
[2]
History
[
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On July 21, 2015, the Ultra HD Forum announced that they had over 20 member companies after incorporating as a US-based non-profit a month earlier.
[3]
On April 18, 2016, the Ultra HD Forum announced industry guidelines for UHD Phase A content.
[4]
[5]
[6]
[7]
The Ultra HD Forum also announced that it had increased to 46 member companies.
[4]
On January 5, 2017, the Ultra HD Forum announced that their guidelines had been updated to version 1.2 (including things like immersive audio,
BT.2100
, etc.) and that additional companies have joined which includes
Google
.
[8]
On September 14, 2017 the guidelines were updated to version 1.4 (including
new definitions of
PQ10
and
HDR10
, a matrix receiver/decoder capability combinations, the receiver/decoders combinations to render different formats, statistical methods of deriving CLL values, "graphics white" level for
HLG
as recommended by BBC and NHK, etc.)
[7]
UHD Phase A
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UHD Phase A covers broadcasting services to be launched by end of 2016 or early 2017. The guidelines for UHD Phase A are:
[7]
UHD Phase A consumer devices should be able to decode the
High Efficiency Video Coding
(HEVC) Main 10 profile Level 5.1 and process
Hybrid log?gamma
(HLG10) or
Perceptual quantizer
(
PQ10
)/
HDR10
content using
Rec. 2020
color primaries. The guidelines consider
Rec. 2100
1080p content with
Wide Color Gamut
(
BT.2020
) and
High Dynamic Range
as Ultra HD service.
[7]
The guidelines
also document live and pre-recorded production, as well as the combination of
HDR
and
SDR
video content and conversion between BT.709 and BT.2020 color spaces and different
HDR metadata
formats. Broadcasters are advised to provide backward compatibility by using
HLG10
with BT.2020 color space, or simulcasting
PQ10
or
HDR10
streams (for example, using
Scalable HEVC
).
[7]
UHD Phase B
[
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An April 7, 2018 Ultra HD Forum published UHD Guidelines for phase B.
[9]
Technologies that have been included in UHD Phase B, which targets UHD services launching in 2018-2020, include:
[6]
- Next Generation audio codecs supporting multiple audio objects (
Dolby AC-4
,
DTS:X
,
MPEG-H 3D Audio
);
- Scalable Video Coding to encode spatial (resolutions 1080p and 2160p), temporal (different frame rates), color gamut (
BT.709
and
BT.2020
), and dynamic range (
SDR
and
HDR
) differences to provide backward-compatible video signal within a single program stream;
- Up to 12 bit color depth;
- High frame rates greater than 50/60 fps;
- UHD 8K resolution;
- Dynamic HDR metadata
for per-scene coding (
SMPTE ST 2094
Dynamic Metadata for Color Volume Transform):
[10]
[11]
- ICtCp
color encoding;
- Color Remapping Information (CRI).
Founding/charter members
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Charter members
[
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Contributor members
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Associate members
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See also
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References
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External links
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