HDR Production Workflows: A Dynamic Solution That Provides Stable Graphics Management And Compatibility With Static Solutions
Metadata
- Publisher
- SMPTE — White Plains, NY, USA
- Doc Type
- Conference Paper
- Content Type
- Original Research
- Volume
- 2023, No. 10, pp. 21–24
- Abstract
- Live production workflows, particularly those for sports, employ complex pipelines to deliver HD, UHD, SDR, and HDR video streams. Because content originates as HDR or SDR, effective and flexible conversions are required between formats. Graphics insertion is extensively used, presenting scores and analytics. These graphics must remain stable to provide a consistent appearance throughout the conversions. Today, diverse tone mapping and inverse tone mapping technologies are proposed to industry, each with the promise to create premium HDR content while maintaining the quality of SDR versions. Look Up Tables (LUTs) are the chief conversion technique used today, but constrain the capabilities of HDR and/or compromise the SDR look. Further, their static nature exposes content to artifacts emerging from changing conditions during live capture (e.g., sunset, passing clouds, shadows). While dynamic techniques accommodate such changes, a problem emerging is that none of the different LUT solutions nor dynamic solutions are fully interoperable: Each produces content with different properties, requiring different conversions to satisfy the critical requirement of delivering a seamless final content. This paper presents a generic solution, based on metadata, that resolves the compatibility issue. We present an implementation, a dynamic solution, implementing this proposal and providing tools based on dynamic metadata generation that ensures viewers enjoy the highest HDR video quality with no compromise of the SDR stream. By leveraging an image-based adaptation having already-acknowledged benefits of dynamic conversion, this solution introduces a constraint to allow stable graphics management: a specific Static Diffuse White, which ensures compatibility with existing static workflows while offering resolution to their shortcomings and paves the way for industry to transition smoothly from static to dynamic techniques and ensure delivery of premium HDR and SDR content.
- Publication Date
- 2023-10-16
- DOI
10.5594/M002016- ISBN
- Print:
978-1-61482-964-5 - Link
- https://doi.org/10.5594/M002016
- Author(s)
- David TouzeInterDigital R&D FranceFrederic PlissonneauInterDigital R&D FrancePatrick MorvanInterDigital R&D FranceBill RedmannInterDigital Communications Inc., USARobin Le NaourInterDigital R&D FranceLaurent CauvinInterDigital R&D FranceValérie AlliéInterDigital R&D France
- Keyword(s)
- HDR, SDR, Tone Mapping, Inverse Tone Mapping, Tone Expansion, Tone Compression, TM, ITM, Graphics Management, HDR Live Production, Diffuse White, 3D LUT
- Copyright
- © 2023 Society of Motion Picture and Television Engineers, Inc.
Bibliographic Reference(s)
- HDR Production—Tone Mapping Techniques and Roundtrip Conversion Performance for Mastering With SDR and HDR Sources [Active]
- ETSI.TS-103-433-1.2021 — “High-Performance Single Layer High Dynamic Range (HDR) System for Use in Consumer Electronics Devices; Part 1: Directly Standard Dynamic Range (SDR) Compatible HDR System (SL-HDR1),” ETSI TS 103 433-1 V1.4.1, Aug. 23, 2021. Accessed: Oct. 25, 2023. [Online]. Available: https://www.etsi.org/deliver/etsi_ts/103400_103499/10343301/01.04.01_60/ts_10343301v010401p.pdf EXTERNAL
- ETSI.TS-103-433-2.2021 — “High-Performance Single Layer High Dynamic Range (HDR) System for Use in Consumer Electronics Devices; Part 2: Enhancements for Perceptual Quantization (PQ) Transfer Function Based High Dynamic Range (HDR) Systems (SL-HDR2),” ETSI TS 103 433-2 V1.3.1, Aug. 23, 2021. Accessed: Oct. 25, 2023. [Online]. Available: https://www.etsi.org /deliver/etsi _ts/103400_103499/10343302/01.03.01_60/ ts_10343302v010301p.pdf EXTERNAL
- ETSI.TS-103-433-3.2021 — “High-Performance Single Layer High Dynamic Range (HDR) System for Use in Consumer Electronics Devices; Part 3: Enhancements for Hybrid Log Gamma (HLG) Transfer Function Based High Dynamic Range (HDR) Systems (SL-HDR3),” ETSI TS 103 433-3 V1.2.1, Aug. 23, 2021. Accessed: Oct. 25, 2023. [Online]. Available: https://www.etsi.org/deliver/etsi_ts/103400_103499/10343303/01.02.01_60/ts_10343303v010201p.pdf EXTERNAL
- “Guidance on Format Conversion in HLG Production”, BBC Research, April 2020, http://downloads.bbc.co.uk/rd/pubs/papers/HDR/BBC_HDRTV_HLG_LUT_Production_Guide.pdf . EXTERNAL
- Redmann B., Touze D., Plissonneau F., Stein A., Ducos G., “HDR Challenges and Solutions”, 2022 NAB Broadcast Engineering and Information Technology (BEIT) Conference, April 2022 EXTERNAL
- “Release Notes for HLG Format Conversion LUTs v1.6”, BBC Research, March 2023, http://downloads.bbc.co.uk/rd/pubs/papers/HDR/BBC_HDRTV_HLG_LUT_Release_Notes_v1-6.pdf . EXTERNAL
- “ASC StEM2” “The Mission”, https://theasc.com/asc/stem2 EXTERNAL
- Advanced HDR by Technicolor website: https://advancedhdrbytechnicolor.com/ EXTERNAL
- “NBCUniversal Single-Master Broadcast Production and Distribution Recommendations #NBCU-Rec-UHD-HDR-01.15”, Version 1.15, April 2023, https://github.com/digitaltvguy/NBCUniversal-UHD-HDR-SDR-Single-Master-Production-Workflow-Recommendation-LUTs . EXTERNAL
- EBU Recommendation R 103, version 3.0, May 2020, “Video signal tolerance in digital video systems”, https://tech.ebu.ch/docs/r/r103.pdf . EXTERNAL
- Live from the FIFA World Cup, Sport Video Group, December 7th 2022, https://www.sportsvideo.org/2022/12/07/live-from-the-fifa-world-cup-hbs-ceo-dan-miodownik-cto-christian-gobbel-reflect-on-efforts-to-date/ EXTERNAL
- International Telecommunications Union – Radiocommunication (ITU-R), Report BT.2408-6, “Guidance for operational practices in HDR television production”, March 2023, https://www.itu.int/dms_pub/itu-r/opb/rep/R-REP-BT.2408-6-2023-PDF-E.pdf . EXTERNAL
- ITU-R BT.709.6 [Active]
- ITU-R BT.2100-2 [Active]
- SMPTE ST 2108-1 [Active]
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David Touze, Frederic Plissonneau, Patrick Morvan, Bill Redmann, Robin Le Naour, Laurent Cauvin, and Valérie Allié; HDR Production Workflows: A Dynamic Solution That Provides Stable Graphics Management And Compatibility With Static Solutions, SMPTE Meetings and Conferences ( October 2023); SMPTE, 2023, ISBN: 978-1-61482-964-5. Available at https://doi.org/10.5594/M002016
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David Touze, Frederic Plissonneau, Patrick Morvan, Bill Redmann, Robin Le Naour, Laurent Cauvin, and Valérie Allié; HDR Production Workflows: A Dynamic Solution That Provides Stable Graphics Management And Compatibility With Static Solutions, SMPTE Meetings and Conferences ( October 2023); SMPTE, 2023, ISBN: 978-1-61482-964-5. Available at https://doi.org/10.5594/M002016
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David Touze, Frederic Plissonneau, Patrick Morvan, Bill Redmann, Robin Le Naour, Laurent Cauvin, and Valérie Allié; HDR Production Workflows: A Dynamic Solution That Provides Stable Graphics Management And Compatibility With Static Solutions, SMPTE Meetings and Conferences ( October 2023); SMPTE, 2023, ISBN: 978-1-61482-964-5. Available at https://doi.org/10.5594/M002016
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<span class="citation">David Touze, Frederic Plissonneau, Patrick Morvan, Bill Redmann, Robin Le Naour, Laurent Cauvin, and Valérie Allié; <cite>HDR Production Workflows: A Dynamic Solution That Provides Stable Graphics Management And Compatibility With Static Solutions</cite>, SMPTE Meetings and Conferences ( October 2023); SMPTE, 2023, ISBN: 978-1-61482-964-5. Available at <a href="https://doi.org/10.5594/M002016" target="_blank" rel="noopener">https://doi.org/10.5594/M002016</a></span>
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David Touze, Frederic Plissonneau, Patrick Morvan, Bill Redmann, Robin Le Naour, Laurent Cauvin, and Valérie Allié; HDR Production Workflows: A Dynamic Solution That Provides Stable Graphics Management And Compatibility With Static Solutions, SMPTE Meetings and Conferences ( October 2023); SMPTE, 2023, ISBN: 978-1-61482-964-5
doi: 10.5594/M002016
url: https://doi.org/10.5594/M002016
doi: 10.5594/M002016
url: https://doi.org/10.5594/M002016
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<li> David Touze, Frederic Plissonneau, Patrick Morvan, Bill Redmann, Robin Le Naour, Laurent Cauvin, and Valérie Allié; <cite id="bib-10-5594-m002016">HDR Production Workflows: A Dynamic Solution That Provides Stable Graphics Management And Compatibility With Static Solutions</cite>, SMPTE Meetings and Conferences ( October 2023); SMPTE, 2023, ISBN: 978-1-61482-964-5 <span class="doi">10.5594/M002016</span> </li>