Realtime Cross-Mapping of High Dynamic Range Images

Metadata

Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: SMPTE Mot. Imag. J
Volume: 126, No. 3, pp. 37–44
Abstract: The ability to deliver high dynamic range (HDR) and wide color gamut (WCG) imagery is crucial to next generation broadcast. It is a key feature of both Digital Video Broadcasting (DVB) Ultra High Definition (UHD)-1 Phase 2, Advanced Television Systems Committee (ATSC) 3.0, and the latest International Telecommunications Union - Radiocommunications (ITU-R) recommendation: BT.2100. While this is an important step toward the creation of broadcast HDR-WCG systems, if HDR-WCG production is to be deployed commercially, it is necessary to use a mix of both conventional standard dynamic range (SDR) and HDR cameras in a single HDR-WCG production. It is also necessary to derive a high quality conventional ITU-R BT.709 (SDR with gamma nonlinearity) program for regular contribution and transmission. Additionally, it is necessary to cross-map SDR programs, interstitials and adverts into an HDR-WCG service for transmission. This paper describes the techniques that have been developed to perform these transforms to meet broadcast production standards in realtime. These techniques are built on the experience gained in the creation of the first 50 HDR theatrical releases, as well as trials with HDR broadcast productions. Finally, the operational practices to ensure consistency in HDR-WCG production, high-quality program interchange, and a pleasing viewer experience are examined.
Publication Date: 2017-04-01
DOI: 10.5594/JMI.2017.2665298
ISSN: Print: 1545-0279 | Electronic: 2160-2492
Link: https://doi.org/10.5594/JMI.2017.2665298
Author(s): Jaclyn Pytlarz
Kimball Thurston
David Brooks
Prinyar Boon
Robin Atkins
Keyword(s): Color Volume Mapping, ICTCP, HDR, PQ, Cross-Mapping
Copyright: © 2017 SMPTE

Bibliographic Reference(s)

ITU Recommendation BT.709-6, “Parameter Values for the HDTV Standards for Production and International Programme Exchange,” International Telecommunications Union, Geneva, Switzerland, 2015. EXTERNAL
Dolby Laboratories, “What Is ICTCP?” White Paper, Sep. 2016, https://www.dolby.com/us/en/technologies/dolby-vision/ictcp-white-paper.pdf EXTERNAL
P. Hung and R. Berns, “Determination of Constant Hue Loci for a CRT Gamut and Their Predictions Using Color Appearance Space,” COLOR Research and Application, 20(5): 285-295, Oct. 1995. EXTERNAL
Lu et al., “ITP Colour Space and Its Compression Performance for High Dynamic Range and Wide Colour Gamut Video Distribution,” ZTE Communications, 14(1): 32–38, Feb. 2016. EXTERNAL
M. D. Fairchild and G. J. Braun, “General-Purpose Gamut-Mapping Algorithms: Evaluation of Contrast Preserving Rescaling Functions for Color Gamut Mapping,” IS&T/SID Seventh Color Imaging Conference: Color Science, Systems and Applications, pp. 167–172, 1999. EXTERNAL
ITU Recommendation BT.2100-0, “Image Parameter Values for High Dynamic Range Television for Use in Production and International Programme Exchange,” International Telecommunications Union, Geneva, Switzerland, 2016. EXTERNAL
ITU Recommendation BT.2390-0, “High Dynamic Range Television for Production and International Programme Exchange,” International Telecommunications Union, Geneva, Switzerland, 2016. EXTERNAL
J. A. Pytlarz, “Versatile Color Space for High Dynamic Range and Wide Gamut Signal,” National Association of Broadcasters Show 2016 Conference Proc, pp. 251–258. EXTERNAL
D. L. MacAdam, “Visual Sensitivities to Color Difference in Daylight,” Journal of the Optical Society of America, 32:247-274, May 1942. EXTERNAL
ITU Recommendation BT.1886, “Reference Electro-Optical Transfer Function for Flat Panel Displays Used in HDTV Studio Production,” International Telecommunications Union, Geneva, Switzerland, p. 3, Mar. 2011. EXTERNAL

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Jaclyn Pytlarz, Kimball Thurston, David Brooks, Prinyar Boon, and Robin Atkins; Realtime Cross-Mapping of High Dynamic Range Images, SMPTE Motion Imaging Journal ( Volume: 126, Issue: 3, April 2017); SMPTE, 2017. Available at https://doi.org/10.5594/JMI.2017.2665298

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Jaclyn Pytlarz, Kimball Thurston, David Brooks, Prinyar Boon, and Robin Atkins; Realtime Cross-Mapping of High Dynamic Range Images, SMPTE Motion Imaging Journal ( Volume: 126, Issue: 3, April 2017); SMPTE, 2017. Available at https://doi.org/10.5594/JMI.2017.2665298

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<span class="citation">Jaclyn Pytlarz, Kimball Thurston, David Brooks, Prinyar Boon, and Robin Atkins; <cite>Realtime Cross-Mapping of High Dynamic Range Images</cite>, SMPTE Motion Imaging Journal ( Volume: 126, Issue: 3, April 2017); SMPTE, 2017. Available at <a href="https://doi.org/10.5594/JMI.2017.2665298" target="_blank" rel="noopener">https://doi.org/10.5594/JMI.2017.2665298</a></span>

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Jaclyn Pytlarz, Kimball Thurston, David Brooks, Prinyar Boon, and Robin Atkins; Realtime Cross-Mapping of High Dynamic Range Images, SMPTE Motion Imaging Journal ( Volume: 126, Issue: 3, April 2017); SMPTE, 2017
doi: 10.5594/JMI.2017.2665298
url: https://doi.org/10.5594/JMI.2017.2665298

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Jaclyn Pytlarz, Kimball Thurston, David Brooks, Prinyar Boon, and Robin Atkins; <cite id="bib-10-5594-jmi-2017-2665298">Realtime Cross-Mapping of High Dynamic Range Images</cite>, SMPTE Motion Imaging Journal ( Volume: 126, Issue: 3, April 2017); SMPTE, 2017
<span class="doi">10.5594/JMI.2017.2665298</span>
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