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Slide 1
HIGH DYNAMIC RANGE (HDR)
BROADCASTERS EXPECTATIONS AND
STANDARDIZATION PROCESS
CONTENT PROVIDED BY ADI KOUADIO, PRESENTED BY WALID SAMI EBU T&I
ASBU TV AND RADIO FESTIVAL HAMMAMET 2 MAY 2016
CONTENT
1. ACQUISITION: UHD-1 HDR CAMERAS AND MONITORING
2. HDR VIDEO METADATA
3. HDR-SDR-HDR CONVERSION
4. STANDARDISATION STATUS
5. CONSUMER DISPLAY STATUS
Slide 3
ACQUISITION
Cameras: – Almost all UHD-1 cameras do HDR in capturing
(Sony F65, Panasonic, ARRI,…), but so far with proprietary OETF curve (example SLOG3 from Sony).
– All are expected to eventually include ITU-HDR TV Recommendation as in draft agreed in ITU-R/WP6C in February 2016. • The HDR TV standard includes the PQ and
HLG OETF curve.
HDR Monitors: – SONY BVM X300
• 30’’ 4K OLED (up to approx 800 nits/candelas per m2) – CANON DP-V2410 4K
• 24’’ 4K LCD display
Slide 4
HDR VIDEO METADATA
• Required for PQ based HDR production and distribution – Different views on whether this will be practical for
real time workflows. Many, but not all, broadcasters think not.
• Ongoing standardization in SMPTE for dynamic metadata needed for Dolby system , expected in 2016.
Slide 5
HDR-SDR-HDR CONVERSION
• HDR-SDR conversion can be very effective, and produce high quality SDR images.
• Solutions exist from technology providers – Proprietary solutions (Technicolor, etc.) – Tone mapping, allows conversion SDR -> HDR – Useful for using Archived content
• Broadcasters can make their own choice.
Slide 6
STANDARDISATION STATUS - PRODUCTION
ITU HDR-TV – Maybe Done, agreed by Study Group 6 in February 2016, formal approval ongoing, final approval expected in two months’ time. Includes both:
PQ (SMPTE 2084) for offline production and HLG (BBC/NHK) for live production
To be noted the Japanese standard ARIB STD B67 which covers HLG.
Slide 7
STANDARDISATION STATUS - DISTRIBUTION
• DVB – Receiver’s specification ongoing, expected end 2016 if agreement can be reached. – HDR10 (PQ) (used for BLURAY) – HLG (SDR backward compatible) – Dolby vision (dual layer) – Technicolor/Philips (dual layer) – SHVC scalable HEVC (dual layer)
• Choice has impact on licence fees.
Slide 8
STANDARDISATION STATUS - ENCODING
• HEVC can cope with all basic HDR curves (supported via signalling) but using other more optimised systems e.g. dual layer would require new codecs
Slide 9
CONSUMER DISPLAY STATUS
• ULTRA HD Premium label made by the UHD Alliance to certify high quality UHD displays
• Two major manufacturers fulfill it
(but more to come): – LG (OLED) Deepest blacks – Samsung (LCD-LED) High
brightness peaks
Slide 10
EBU / HIGH DYNAMIC RANGE WORKSHOP 2016
Slide 11
Collaborating with ASBU and EBU members from Arab countries
EBU ACTIVITIES
• Seminars on new technologies • Training • Programme exchange • Assistance to Media Authorities
