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HDR10+ - Wikipedia Jump to content

HDR10+

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HDR10+ [1] is a high dynamic range (HDR) video technology that adds dynamic metadata [2] to HDR10 source files. The dynamic metadata are used to adjust and optimize each frame of the HDR video to the consumer display's capabilities in a way based on the content creator's intentions. [ promotion? ]

HDR10+ is an alternative to Dolby Vision , which also uses dynamic metadata. [3] HDR10+ is the default variant of dynamic metadata as part of the HDMI 2.1 standard. [4]

HDR10+ Adaptive is an update designed to optimize HDR10+ content according to the ambient light . [5]

Description [ edit ]

HDR10+, also known as HDR10 Plus, was announced on 20 April 2017, by Samsung and Amazon Video. HDR10+ updates HDR10 by adding dynamic metadata that can be used to more accurately adjust brightness levels up to the full range of PQ code values (10,000 nits maximum brightness) on a scene-by-scene or frame-by-frame basis. [6] [7] [8] [9] The technology is standardized and defined in SMPTE ST 2094 -40. [10] [11] [12] [7] [8] [9] HDR10+ is an open standard [ disputed (for: "open" describing something not publicly available)  – discuss ] and is royalty-free ; it is supported by a growing list of post-production software and tools. [7] [8] [9] HDR10+ specifications are not publicly available. A certification and logo program for HDR10+ device manufacturers is available with an annual administration fee for certain adopter categories and no per-unit royalty. [13] Authorized test centers conduct certification testing for HDR10+ devices. [13]

On 28 August 2017, Samsung, Panasonic, and 20th Century Fox created the HDR10+ Technologies LLC [14] to promote the HDR10+ standard. [15] HDR10+ video started being offered by Amazon Video on 13 December 2017. [16] On 5 January 2018, Warner Bros. announced their support for the HDR10+ standard. [17] On 6 January 2018, Panasonic announced Ultra HD Blu-ray players with support for HDR10+. [18] On 4 April 2019, Universal Pictures Home Entertainment announced a technology collaboration with Samsung Electronics to release new titles mastered with HDR10+. [19] It is considered [ by whom? ] to have most of the advantages of Dolby Vision over HDR10, as well as being royalty free. [ citation needed ]

HDR10+ signals the dynamic range and scene characteristics on a scene-by-scene or even frame-by-frame basis. The display device then uses the dynamic metadata to apply an appropriate tone map through the process of dynamic tone mapping. [20] Dynamic tone mapping differs from static tone mapping by applying a different tone curve from scene-to-scene rather than use a single tone curve for an entire video. [21]

HDR10+ and Dolby Vision do not use the same dynamic metadata.

Technical details [ edit ]

HDR10+ content profile [ edit ]

  • EOTF: SMPTE ST 2084 ( PQ )
  • Chroma subsampling : 4:2:0 (for compressed video sources), 4:2:2 and 4:4:4
  • Resolution: Agnostic (2K/4K/8K, [22] etc.)
  • Bit depth : 10-bit or more (up to 16-bit) per color channel
  • Color primaries: ITU-R BT.2020
  • Maximum linearized pixel value: 10,000 cd/m 2 for each color R/G/B (content)
  • Metadata (required): Mastering Display Color Volume Metadata [23]
  • Metadata (optional): MaxCLL, MaxFALL [24]

HDR10+ technology can support the full range of HDR standards to 10,000 cd/m 2 , 8K and BT.2020 color gamut. Being resolution agnostic, metadata needs to be created only once and can be applied to any target resolution.

HDR10+ is supported in video encoding technologies HEVC, AV1, VP9 compatibility via WebM [25] as well as any codec that supports ITU-T T.35 metadata.

Workflow and ecosystem [ edit ]

HDR10+ distribution ecosystem

HDR10+ utilizes an HDR10 master file within existing HDR post-production and distribution workflows.

The HDR10+ ecosystem is used within current systems by,

  • storing HDR10+ metadata in JSON files
  • embedding HDR10+ metadata into HDR10 encoded content
  • distribution through digital stream (e.g. streaming with HDR10+ SEI [26] )
  • displaying HDR10+ content on a capable display (e.g. HDMI interfaces with HDR10+ VSIF) and mobile devices [27]  

Metadata generation [ edit ]

HDR10+ metadata workflow

For offline and video-on-demand ( VOD ) (e.g. ultra-high-definition Blu-ray , over-the-top ( OTT ), multi-channel video programming distributor ( MVPD )), HDR10+ metadata may be created during the post-production, mastering process or during transcoding /encoding for distribution back-ends by HDR10+ content generation tools in two steps,

  1. Identifying scene cuts, and
  2. Performing an image analysis on each scene or frame to derive statistics

HDR10+ metadata is interchanged through a low complexity JSON -structured text file, [28] which is then parsed and injected into video files.

Live encoding [ edit ]

HDR10+ live encoder workflow

Live use cases are possible by delivering HDR10+ metadata in every frame. HEVC encoders generate and inject metadata on live content and mobile phones record video and create HDR10+ [29] metadata in real-time during recording. Live encoding is detailed in the Live Encoder Workflow diagram and real time broadcast operations are supported at the point of transmission enabling a metadata-less broadcast operation.

Compatibility [ edit ]

HDR10+ backward compatibility

HDR10+ metadata follows ITU-T T.35 and can co-exist with other HDR metadata such as HDR10 static metadata that makes HDR10+ content backward compatible [30] with non-HDR10+ TVs. HDR10+ metadata is ignored by devices that do not support the format and video is played back in HDR10.

Administration [ edit ]

HDR10+ Technologies, LLC [31] administers the license and certification program for products that want to adopt HDR10+. HDR10+ Technologies, LLC provides the technical specifications, test specifications, and certified logo.

Founders [ edit ]

Source: [32]

Authorized test centers [ edit ]

Certification of products is done through authorized test centers. The following are a list of HDR10+ authorized test centers:

Adoption [ edit ]

Adopters [ edit ]

Source: [33]

HDR10+ certified products [ edit ]

Certified product [34] categories include:

  • Ultra-High Definition displays
  • Ultra-High Definition Blu-ray disc players
  • Systems-on-chip (SoC)
  • Set-top boxes
  • A/V Receivers
  • Streaming applications
  • Mobile devices
  • Inflight Entertainment Systems

References [ edit ]

  1. ^ "What is HDR10+? What you need to know" . Trusted Reviews . 2019-05-21. Archived from the original on 2019-06-09 . Retrieved 2019-09-16 .
  2. ^ "Understanding Dynamic Metadata" . Creative Planet Network . 2016-11-30. Archived from the original on 2020-08-08 . Retrieved 2019-09-16 .
  3. ^ "HDR terminology demystified" . FlatpanelsHD . 2019-08-23 . Retrieved 2021-10-09 .
  4. ^ Denison, Caleb. "HDMI 2.1: What it is, and why your next TV should have it" . DigitalTrends . Digital Trends Media Group . Retrieved 29 October 2021 .
  5. ^ "Samsung's HDR10+ Adaptive goes head-to-head with Dolby Vision IQ" . Trusted Reviews . 2021-01-06 . Retrieved 2021-10-09 .
  6. ^ "Archived copy" (PDF) . Archived (PDF) from the original on 4 September 2019 . Retrieved 3 January 2020 . {{ cite web }} : CS1 maint: archived copy as title ( link )
  7. ^ a b c "Samsung and Amazon Video Deliver Next Generation HDR Video Experience with Updated Open Standard HDR10+" . Samsung . 20 April 2017. Archived from the original on 13 June 2017 . Retrieved 20 April 2017 .
  8. ^ a b c Cho Mu-Hyun (20 April 2017). "Samsung, Amazon partner for HDR10 Plus" . ZDNet . Archived from the original on 20 April 2017 . Retrieved 20 April 2017 .
  9. ^ a b c John Archer (20 April 2017). "Samsung And Amazon Just Made The TV World Even More Confusing" . Forbes . Archived from the original on 20 April 2017 . Retrieved 20 April 2017 .
  10. ^ Dynamic Metadata for Color Volume Transform ? Application #4 . September 2016. pp. 1?26. doi : 10.5594/SMPTE.ST2094-40.2016 . ISBN   978-1-68303-048-5 .
  11. ^ "SMPTE ST 2094 and Dynamic Metadata" (PDF) . Society of Motion Picture and Television Engineers . Archived (PDF) from the original on 2 February 2017 . Retrieved 25 January 2017 .
  12. ^ John Laposky (20 April 2017). "Samsung, Amazon Video Team To Deliver Updated Open Standard HDR10+" . Twice. Archived from the original on 23 April 2017 . Retrieved 29 April 2017 .
  13. ^ a b "20th Century Fox, Panasonic and Samsung Gain Momentum for Best Possible TV-Viewing Experience with HDR10+ Technology" . hdr10plus.org. 4 January 2018. Archived from the original on 8 January 2018 . Retrieved 7 January 2018 .
  14. ^ "HDR10+LLC" . hdr10+llc. 24 May 2019. Archived from the original on 18 May 2019 . Retrieved 24 May 2019 .
  15. ^ Ramus Larsen (28 August 2017). "Samsung, Panasonic & 20th Century Fox form HDR10+ alliance" . flatpanelshd. Archived from the original on 8 January 2018 . Retrieved 7 January 2018 .
  16. ^ John Archer (13 December 2017). "Amazon Video Has Made All Of Its HDR Shows Available In HDR10+" . Forbes . Archived from the original on 7 January 2018 . Retrieved 7 January 2018 .
  17. ^ John Archer (5 January 2018). "Warner Bros Boards The HDR10+ Bandwagon" . Forbes . Archived from the original on 5 January 2018 . Retrieved 7 January 2018 .
  18. ^ John Archer (6 January 2018). "Panasonic Unveils New 4K Blu-ray Players - Including World First Dolby Vision And HDR10+ Support" . Forbes . Archived from the original on 9 January 2018 . Retrieved 10 January 2018 .
  19. ^ Samsung Electronics (24 May 2019). "Samsung Electronics and Universal Pictures Home Entertainment Announce HDR10+ Content Collaboration" . Samsung Newsroom. Archived from the original on 4 April 2019 . Retrieved 24 May 2019 .
  20. ^ Werner, Ken (2017-02-16). "Two Keys to Optimal HDR TVs: Dynamic HDR Metadata and Tone Mapping" . DisplayDaily . Archived from the original on 2021-01-25 . Retrieved 2019-09-16 .
  21. ^ "What is 4K HDR Dynamic Metadata?" . AVForums . 2 January 2018 . Retrieved 2019-11-19 .
  22. ^ "Samsung brings its HDR10+ tech to 8K TVs" . Engadget . 4 September 2019. Archived from the original on 2019-09-15 . Retrieved 2019-09-16 .
  23. ^ Mastering Display Color Volume Metadata Supporting High Luminance and Wide Color Gamut Images . doi : 10.5594/SMPTE.ST2086.2018 . ISBN   978-1-68303-139-0 .
  24. ^ Turner, Paul (30 May 2018). "HDR: Standards, Standards, Everywhere" . TvTechnology . Archived from the original on 2020-09-27 . Retrieved 2019-11-19 .
  25. ^ "The WebM Project | VP9 Video Codec Summary" . www.webmproject.org . Archived from the original on 2019-10-18 . Retrieved 2019-09-05 .
  26. ^ "SEI messages | MPEG" . mpeg.chiariglione.org . Archived from the original on 2019-09-05 . Retrieved 2019-09-05 .
  27. ^ Katzmaier, David. "Galaxy S10 screen deep dive: Dynamic AMOLED, HDR10+, explained" . CNET . Archived from the original on 2019-02-26 . Retrieved 2019-09-16 .
  28. ^ "Transkoder 2018: User Guide" . www.colorfront.com . Retrieved 2019-11-19 .
  29. ^ HDR10+ Video Recording on Your Galaxy S10 , archived from the original on 2020-09-01 , retrieved 2019-09-16
  30. ^ "Are You Ready for Your HDR Delivery?" . Studio Daily . 2018-12-19. Archived from the original on 2019-10-29 . Retrieved 2019-11-19 .
  31. ^ "HDR10+" . Archived from the original on 2019-08-27 . Retrieved 2019-08-27 .
  32. ^ "HDR10+ Technologies, LLC, Founded by 20th Century Fox, Panasonic and Samsung, Welcomes First Adopters of HDR10+ Technology" . www.businesswire.com . 2018-08-28. Archived from the original on 2019-09-05 . Retrieved 2019-09-05 .
  33. ^ "Adopters - HDR10+" . hdr10plus.org . Archived from the original on 2019-09-05 . Retrieved 2019-09-05 .
  34. ^ "HDR10+ Certification Begins This Month, Brings the Tech to More TVS" . www.digitaltrends.com . 2018-06-21. Archived from the original on 2019-10-19 . Retrieved 2019-09-16 .

External links [ edit ]

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