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Dolby Vision
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== Description 1 ==
[[Dolby Vision]] is an HDR format from [[Dolby Laboratories]] that can be optionally supported by [[Ultra HD Blu-ray]] discs and [[Streaming media|streaming video services]].<ref name="UltraHDArrivesJanuary2016DigitalTrends">{{cite news|author=Caleb Denison|date=28 January 2016|title=Ultra HD Blu-ray arrives March 2016; here's everything we know|publisher=Digital Trends|url=http://www.digitaltrends.com/home-theater/ultra-hd-blu-ray-specs-dates-and-titles/|url-status=live|access-date=27 July 2016|archive-url=https://web.archive.org/web/20160727134339/http://www.digitaltrends.com/home-theater/ultra-hd-blu-ray-specs-dates-and-titles/|archive-date=27 July 2016}}</ref><ref name="UltraHDPlayerFebruary2016HighDefDigest">{{cite news|author=Michael S. Palmer|date=10 February 2016|title=Hands On First Look: Samsung UBD-K8500 Ultra HD Blu-ray Player|publisher=High-Def Digest|url=http://www.highdefdigest.com/news/show/Samsung/ultra-hd-bluray/4K/UHD/hdr/hands-on-first-look-samsung-ubdk8500-ultra-hd-bluray-player/29748|url-status=live|access-date=27 July 2016|archive-url=https://web.archive.org/web/20160724080848/http://www.highdefdigest.com/news/show/Samsung/ultra-hd-bluray/4K/UHD/hdr/hands-on-first-look-samsung-ubdk8500-ultra-hd-bluray-player/29748|archive-date=24 July 2016}}</ref> Dolby Vision is a proprietary format and Dolby SVP of Business Giles Baker has stated that the royalty cost for Dolby Vision is less than $3 per TV.<ref name="HDRTVJanuary2016Wired">{{cite news|author=Tim Moynihan|date=20 January 2016|title=What you need to know before buying an HDR TV|publisher=[[Wired (magazine)|Wired]]|url=https://www.wired.com/2016/01/what-is-hdr-tv/|url-status=live|access-date=26 January 2017|archive-url=https://web.archive.org/web/20170202041301/https://www.wired.com/2016/01/what-is-hdr-tv/|archive-date=2 February 2017}}</ref><ref name="DolbyVisionSeptember2016Linkedin">{{cite news|author=Giles Baker|date=20 September 2016|title=Dolby Vision and HDR10: What Format War?|publisher=[[LinkedIn]]|url=https://www.linkedin.com/pulse/dolby-vision-hdr10-what-format-war-giles-baker|url-status=live|access-date=26 January 2017|archive-url=https://web.archive.org/web/20201111193525/https://www.linkedin.com/pulse/dolby-vision-hdr10-what-format-war-giles-baker|archive-date=11 November 2020}}</ref><ref name="HDRFormatsSeptember2016Reviewed">{{cite news|author=Lee Neikirk|date=9 September 2016|title=Dolby Says The "HDR Format War" Doesn't Exist|publisher=Reviewed.com|url=http://televisions.reviewed.com/features/dolby-says-the-hdr-format-war-doesnt-exist|url-status=live|access-date=26 January 2017|archive-url=https://web.archive.org/web/20210123115722/https://www.reviewed.com/televisions/features/dolby-says-the-hdr-format-war-doesnt-exist|archive-date=23 January 2021}}</ref> Dolby Vision includes the Perceptual Quantizer (SMPTE ST 2084) [[electro-optical transfer function]], up to 8K resolution, and a wide-gamut color space ([[Rec. 2020|ITU-R Rec. BT.2020]] in ''[[YCbCr|YC<sub>B</sub>C<sub>R</sub>]]'' or '''''[[ICtCp#IPTPQc2|IPTPQc2]]'''''). Some Dolby Vision profiles allow for 12-bit color depth and 10,000 cd/m<sup>2</sup> maximum brightness<ref>{{Cite web|title=Archived copy|url=https://www.dolby.com/us/en/technologies/dolby-vision/dolby-vision-profiles-levels.pdf|url-status=live|archive-url=https://web.archive.org/web/20190101144128/https://www.dolby.com/us/en/technologies/dolby-vision/dolby-vision-profiles-levels.pdf|archive-date=1 January 2019|access-date=23 May 2019}}</ref> (as of 2018, according to the Dolby Vision white paper, professional reference monitors, such as the Dolby Vision HDR reference monitor, are currently limited to 4,000 cd/m<sup>2</sup> of peak brightness).<ref name="DolbyVisionWhitePaper">{{cite web|author=Dolby Laboratories|title=Dolby Vision Whitepaper|url=http://www.dolby.com/us/en/technologies/dolby-vision/dolby-vision-white-paper.pdf|url-status=live|archive-url=https://web.archive.org/web/20160604120415/http://www.dolby.com/us/en/technologies/dolby-vision/dolby-vision-white-paper.pdf|archive-date=4 June 2016|access-date=24 August 2016}}</ref> It can encode mastering display colorimetry information using static metadata (SMPTE ST 2086) but also provide dynamic metadata (SMPTE ST 2094-10, Dolby format) for each scene<ref name="SMPTE2094DynamicMetadataJanuary2017">{{cite news|title=SMPTE ST 2094 and Dynamic Metadata|publisher=[[Society of Motion Picture and Television Engineers]]|url=https://www.smpte.org/sites/default/files/2017-01-12-ST-2094-Borg-V2-Handout.pdf|url-status=live|access-date=25 January 2017|archive-url=https://web.archive.org/web/20170202043518/https://www.smpte.org/sites/default/files/2017-01-12-ST-2094-Borg-V2-Handout.pdf|archive-date=2 February 2017}}</ref> or frame, like on iPhone 12.{{Citation needed|date=March 2021}}


Examples of [[Ultra-high-definition television|Ultra HD (UHD)]] TVs that support Dolby Vision include [[LG Corporation|LG]], [[TCL Technology|TCL]], VU, [[Sony]] and Vizio.<ref name="HowToStream4kUltraHDwithHDR">{{cite news|author=HD Report|date=19 April 2016|title=How To Stream 4k Ultra HD with High Dynamic Range (HDR)|publisher=hd-report.com|url=http://hd-report.com/2016/04/29/how-to-stream-4k-ultra-hd-with-high-dynamic-range-hdr/|url-status=live|access-date=23 August 2016|archive-url=https://web.archive.org/web/20160821161717/http://hd-report.com/2016/04/29/how-to-stream-4k-ultra-hd-with-high-dynamic-range-hdr/|archive-date=21 August 2016}}</ref> MulticoreWare's [[x265]] encoder supports Dolby Vision as of version 3.0.<ref>{{cite web|author=MulticoreWare|date=23 January 2019|title=v3.0 is now out!|url=http://www.x265.org/v3-0-now/|url-status=live|archive-url=https://web.archive.org/web/20190123115342/http://x265.org/v3-0-now/|archive-date=23 January 2019|access-date=24 January 2019|website=x265.org|publisher=MulticoreWare|ref=MulticoreWareReleasesX265Version3.0}}</ref> Dolby Vision IQ is an update designed to optimise Dolby Vision content according to the [[Available light|ambient light]].<ref>{{Cite web|last=January 2020|first=Becky Roberts 22|title=Dolby Vision IQ: everything you need to know|url=https://www.whathifi.com/advice/dolby-vision-iq-everything-you-need-to-know|url-status=live|archive-url=https://web.archive.org/web/20201028205450/https://www.whathifi.com/advice/dolby-vision-iq-everything-you-need-to-know|archive-date=28 October 2020|access-date=19 August 2020|website=whathifi|language=en}}</ref> It is considered to be future proof.<ref name="HDR TV: What it is and why your next TV should have it">{{cite web|author1=Michael Bizzaco|author2=Ryan Waniata|author3=Simon Cohen|date=19 December 2020|title=HDR TV: What it is and why your next TV should have it|url=https://www.digitaltrends.com/home-theater/what-is-hdr-tv/|url-status=live|archive-url=https://web.archive.org/web/20201221081838/https://www.digitaltrends.com/home-theater/what-is-hdr-tv/|archive-date=21 December 2020|access-date=2 January 2021|website=[[Digital Trends]]|publisher=Designtechnica Corporation}}</ref>
Temp


This dynamic metadata or Dynamic HDR allows adjusting of brightness and contrast (in reality, the tone curve) on the scene by scene or even frame by frame bases as and when required and adjusts it many times during the video/movie.<ref name=":0">{{Cite web|last=Agarwal|first=Aditya|date=2020-11-11|title=Dolby Vision vs HDR 10 vs HDR 10+ vs HLG vs AHDR Which HDR Should You Get?|url=https://milyin.com/dolby-vision-vs-hdr-10-vs-hdr-10-vs-hlg-vs-ahdr-which-hdr-should-you-get/|url-status=live|archive-url=https://web.archive.org/web/20201110200725/https://milyin.com/dolby-vision-vs-hdr-10-vs-hdr-10-vs-hlg-vs-ahdr-which-hdr-should-you-get/|archive-date=10 November 2020|access-date=2021-01-20|website=Milyin|language=en-GB}}</ref>
[[High-dynamic-range video|HDR video link]]

== Description 2 ==
'''[[High-dynamic-range video#Dolby Vision|Dolby Vision]]''' is a content mastering and delivery format similar to the HDR10 media profile. It supports both [[high dynamic range]] (HDR) and [[wide color gamut]] (ITU-R Rec. 2020 and 2100) at all stages from content creation and production to transmission and playback. Dolby Vision includes the Perceptual Quantizier (SMPTE ST-2084) electro-optical transfer function and supports displays with up to 10,000-nit maximum brightness (4,000-nit in practice). It also provides up to 8K resolution and color depth of up to 12-bits (backward compatible with current 8-bit and 10-bit displays).<ref name="DolbyVisionWhitePaper2">{{cite web|author=Dolby Laboratories|title=Dolby Vision|url=http://www.dolby.com/us/en/technologies/dolby-vision/dolby-vision-white-paper.pdf|access-date=2016-08-24}}</ref> Dolby Vision can encode mastering display colorimetry information using static metadata (SMPTE ST 2086) and dynamic metadata (SMPTE ST 2094-10, Dolby format) for each scene.<ref name="SMPTE2094DynamicMetadataJanuary20172">{{cite news|title=SMPTE ST 2094 and Dynamic Metadata|publisher=[[Society of Motion Picture and Television Engineers]]|url=https://www.smpte.org/sites/default/files/2017-01-12-ST-2094-Borg-V2-Handout.pdf|access-date=2017-01-25}}</ref> Examples of Ultra HD (UHD) Dolby Vision are available in TV, monitor, mobile devices and theater. Dolby Vision content can be delivered on [[Ultra HD Blu-ray]] discs,<ref name="UltraHDArrivesJanuary2016DigitalTrends2">{{cite news|author=Caleb Denison|date=2016-01-28|title=Ultra HD Blu-ray arrives March 2016; here's everything we know|publisher=Digital Trends|url=http://www.digitaltrends.com/home-theater/ultra-hd-blu-ray-specs-dates-and-titles/|access-date=2016-07-27}}</ref><ref name="UltraHDPlayerFebruary2016HighDefDigest2">{{cite news|author=Michael S. Palmer|date=2016-02-10|title=Hands On First Look: Samsung UBD-K8500 Ultra HD Blu-ray Player|publisher=High-Def Digest|url=http://www.highdefdigest.com/news/show/Samsung/ultra-hd-bluray/4K/UHD/hdr/hands-on-first-look-samsung-ubdk8500-ultra-hd-bluray-player/29748|access-date=2016-07-27}}</ref> over conventional broadcasting, OTT, and online [[Streaming media|streaming media services]].<ref>{{cite web|title=Dolby Vision|url=http://www.dolby.com/us/en/technologies/dolby-vision.html|access-date=2012-04-26|publisher=Dolby.com}}</ref> Dolby Vision metadata can be carried via HDMI interface versions 1.4b and above.<ref>{{cite web|title=Dolby Vision FAQ|url=http://yoeri.geutskens.com/blog/dolby-vision-faq.html#HDMI-version|website=yoeri.geutskens.com}}</ref> It also supports IPTPQc2 color space, that is similar to ICtCp. Dolby Vision IQ is an update designed to optimise Dolby Vision content according to the brightness of the room.<ref>{{Cite web|last=January 2020|first=Becky Roberts 22|title=Dolby Vision IQ: everything you need to know|url=https://www.whathifi.com/advice/dolby-vision-iq-everything-you-need-to-know|access-date=2020-08-19|website=whathifi|language=en}}</ref>


==References==
==References==

Revision as of 18:26, 24 April 2021

Description 1

Dolby Vision is an HDR format from Dolby Laboratories that can be optionally supported by Ultra HD Blu-ray discs and streaming video services.[1][2] Dolby Vision is a proprietary format and Dolby SVP of Business Giles Baker has stated that the royalty cost for Dolby Vision is less than $3 per TV.[3][4][5] Dolby Vision includes the Perceptual Quantizer (SMPTE ST 2084) electro-optical transfer function, up to 8K resolution, and a wide-gamut color space (ITU-R Rec. BT.2020 in YCBCR or IPTPQc2). Some Dolby Vision profiles allow for 12-bit color depth and 10,000 cd/m2 maximum brightness[6] (as of 2018, according to the Dolby Vision white paper, professional reference monitors, such as the Dolby Vision HDR reference monitor, are currently limited to 4,000 cd/m2 of peak brightness).[7] It can encode mastering display colorimetry information using static metadata (SMPTE ST 2086) but also provide dynamic metadata (SMPTE ST 2094-10, Dolby format) for each scene[8] or frame, like on iPhone 12.[citation needed]

Examples of Ultra HD (UHD) TVs that support Dolby Vision include LG, TCL, VU, Sony and Vizio.[9] MulticoreWare's x265 encoder supports Dolby Vision as of version 3.0.[10] Dolby Vision IQ is an update designed to optimise Dolby Vision content according to the ambient light.[11] It is considered to be future proof.[12]

This dynamic metadata or Dynamic HDR allows adjusting of brightness and contrast (in reality, the tone curve) on the scene by scene or even frame by frame bases as and when required and adjusts it many times during the video/movie.[13]

Description 2

Dolby Vision is a content mastering and delivery format similar to the HDR10 media profile. It supports both high dynamic range (HDR) and wide color gamut (ITU-R Rec. 2020 and 2100) at all stages from content creation and production to transmission and playback. Dolby Vision includes the Perceptual Quantizier (SMPTE ST-2084) electro-optical transfer function and supports displays with up to 10,000-nit maximum brightness (4,000-nit in practice). It also provides up to 8K resolution and color depth of up to 12-bits (backward compatible with current 8-bit and 10-bit displays).[14] Dolby Vision can encode mastering display colorimetry information using static metadata (SMPTE ST 2086) and dynamic metadata (SMPTE ST 2094-10, Dolby format) for each scene.[15] Examples of Ultra HD (UHD) Dolby Vision are available in TV, monitor, mobile devices and theater. Dolby Vision content can be delivered on Ultra HD Blu-ray discs,[16][17] over conventional broadcasting, OTT, and online streaming media services.[18] Dolby Vision metadata can be carried via HDMI interface versions 1.4b and above.[19] It also supports IPTPQc2 color space, that is similar to ICtCp. Dolby Vision IQ is an update designed to optimise Dolby Vision content according to the brightness of the room.[20]

References

  1. ^ Caleb Denison (28 January 2016). "Ultra HD Blu-ray arrives March 2016; here's everything we know". Digital Trends. Archived from the original on 27 July 2016. Retrieved 27 July 2016.
  2. ^ Michael S. Palmer (10 February 2016). "Hands On First Look: Samsung UBD-K8500 Ultra HD Blu-ray Player". High-Def Digest. Archived from the original on 24 July 2016. Retrieved 27 July 2016.
  3. ^ Tim Moynihan (20 January 2016). "What you need to know before buying an HDR TV". Wired. Archived from the original on 2 February 2017. Retrieved 26 January 2017.
  4. ^ Giles Baker (20 September 2016). "Dolby Vision and HDR10: What Format War?". LinkedIn. Archived from the original on 11 November 2020. Retrieved 26 January 2017.
  5. ^ Lee Neikirk (9 September 2016). "Dolby Says The "HDR Format War" Doesn't Exist". Reviewed.com. Archived from the original on 23 January 2021. Retrieved 26 January 2017.
  6. ^ "Archived copy" (PDF). Archived (PDF) from the original on 1 January 2019. Retrieved 23 May 2019.{{cite web}}: CS1 maint: archived copy as title (link)
  7. ^ Dolby Laboratories. "Dolby Vision Whitepaper" (PDF). Archived (PDF) from the original on 4 June 2016. Retrieved 24 August 2016.
  8. ^ "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.
  9. ^ HD Report (19 April 2016). "How To Stream 4k Ultra HD with High Dynamic Range (HDR)". hd-report.com. Archived from the original on 21 August 2016. Retrieved 23 August 2016.
  10. ^ MulticoreWare (23 January 2019). "v3.0 is now out!". x265.org. MulticoreWare. Archived from the original on 23 January 2019. Retrieved 24 January 2019.
  11. ^ January 2020, Becky Roberts 22. "Dolby Vision IQ: everything you need to know". whathifi. Archived from the original on 28 October 2020. Retrieved 19 August 2020.{{cite web}}: CS1 maint: numeric names: authors list (link)
  12. ^ Michael Bizzaco; Ryan Waniata; Simon Cohen (19 December 2020). "HDR TV: What it is and why your next TV should have it". Digital Trends. Designtechnica Corporation. Archived from the original on 21 December 2020. Retrieved 2 January 2021.
  13. ^ Agarwal, Aditya (2020-11-11). "Dolby Vision vs HDR 10 vs HDR 10+ vs HLG vs AHDR Which HDR Should You Get?". Milyin. Archived from the original on 10 November 2020. Retrieved 2021-01-20.
  14. ^ Dolby Laboratories. "Dolby Vision" (PDF). Retrieved 2016-08-24.
  15. ^ "SMPTE ST 2094 and Dynamic Metadata" (PDF). Society of Motion Picture and Television Engineers. Retrieved 2017-01-25.
  16. ^ Caleb Denison (2016-01-28). "Ultra HD Blu-ray arrives March 2016; here's everything we know". Digital Trends. Retrieved 2016-07-27.
  17. ^ Michael S. Palmer (2016-02-10). "Hands On First Look: Samsung UBD-K8500 Ultra HD Blu-ray Player". High-Def Digest. Retrieved 2016-07-27.
  18. ^ "Dolby Vision". Dolby.com. Retrieved 2012-04-26.
  19. ^ "Dolby Vision FAQ". yoeri.geutskens.com.
  20. ^ January 2020, Becky Roberts 22. "Dolby Vision IQ: everything you need to know". whathifi. Retrieved 2020-08-19.{{cite web}}: CS1 maint: numeric names: authors list (link)


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