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Quality Criteria for HDR and WCG of UHD Alliance

UHD Alliance의 HDR, WCG 품질 기준

  • Published : 2016.01.30
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Abstract

UHD Alliance has been established to re-define what UHD is and to provide thoroughly new premium experience as compared to BT.709 (1990)[1]. Preserving creator's intended visual quality is empowered by defining not only compatibility but also quality and by keeping quality criteria consistently over the content ecosystem. This paper deals with philosophy of quality criteria for HDR and WCG as major feature of technical characteristics of the UHD Alliance.

UHD Alliance는 UHD를 새로 정의하고 BT.709 (1990)[1]에서 정의된 HDTV 경험 대비 모든 관점에서 더 나은 프리미엄 사용자 경험을 가치로서 제공하기 위해 설립되었다. 특히 호환성 뿐만 아니라 품질을 정의하고, 그 품질이 컨텐트 저작자로부터 소비자에 이르는 Ecosystem의 흐름상 유지될 수 있도록하여, 의도된 화질을 즐길 수 있는데 중점을 두었다. 본 논문에서는 UHD Alliance 기술 규격의 대표적인 화질 요소인 HDR과 WCG의 품질 기준에 대해 소개한다.

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References

  1. ITU-R Recommendation BT.709-5, "Parameter values for the HDTV standards for production and international programme exchange", 1990
  2. UHD Alliance Press release http://www.uhdalliance.org/uhd-alliance-press-releasejanuary-4-2016/#more-1227, 2016.1
  3. ITU-R Recommendation BT.1886, "Reference electro-optical transfer function for flat panel displays used in HDTV studio production", 2011
  4. SMPTE ST 2084; High dynamic range electro-optical transfer function of mastering reference displays, 2014
  5. DCI-P3; SMPTE 431-1:2006, "D-Cinema Quality- Screen Luminance Level, Chromaticity and Uniformity", 2006
  6. ITU-R Recommendation BT.2020-0, "Parameter values for the ultra-high definition television systems for production and international programme exchange", 2012
  7. SMPTE ST 2086:2014, "Mastering Display Color Volume Metadata Supporting High Luminance and Wide Color Gamut Images.", 2014
  8. CEA-861.3, HDR Static Metadata Extensions, 2015