Color Rendering Index Value Requirement for Wide-Gamut UHDTV Production

Metadata

Publisher: SMPTE — White Plains, NY, USA
Doc Type: Conference Paper
Content Type: Original Research
Volume: 2015, No. 10, pp. 1–14
Abstract: In this paper, we propose color rendering index (CRI) values for light-emitting diodes (LEDs) for use in ultra-high definition television (UHDTV) production. UHDTV cameras, designed with ideal camera spectral sensitivities according to the system colorimetry of Recommendation ITU-R BT.2020, can achieve highly accurate color reproduction in daylight. Because LED lighting is increasingly used in television production, it is important to elucidate the effects of its spectral power distribution on color reproduction. In this study, we performed subjective evaluations by comparing reference images captured under simulated standard lights with test images captured under LEDs of various CRI values. Based on our results, we recommend a CRI Ra value of 90 or higher and R₉ of 80 or higher.
Publication Date: 2015-10-26
DOI: 10.5594/M001627
ISBN: Print: 978-1-61482-956-0
Link: https://doi.org/10.5594/M001627
Author(s): Hiroaki IwasakiPanasonic Corporation Eco Solutions Company, 1048 Kadoma, Osaka 571-8686, Japan
Tetsuya HayashidaNHK Science & Technology Research Laboratories, 1-10-11 Kinuta, Setagaya Tokyo 157-8510, Japan
Kenichiro MasaokaNHK Science & Technology Research Laboratories, 1-10-11 Kinuta, Setagaya Tokyo 157-8510, Japan
Masanori ShimizuPanasonic Corporation Eco Solutions Company, 1048 Kadoma, Osaka 571-8686, Japan
Takayuki YamashitaNHK Science & Technology Research Laboratories, 1-10-11 Kinuta, Setagaya Tokyo 157-8510, Japan
Wataru IwaiPanasonic Corporation Eco Solutions Company, 1048 Kadoma, Osaka 571-8686, Japan
Keyword(s): Light-emitting Diode (LED) Lighting, Spectral Power Distribution, Color Rendering Index (CRI), UHDTV, Color Reproduction
Copyright: © 2015 Society of Motion Picture and Television Engineers, Inc.

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Hiroaki Iwasaki, Tetsuya Hayashida, Kenichiro Masaoka, Masanori Shimizu, Takayuki Yamashita, and Wataru Iwai; Color Rendering Index Value Requirement for Wide-Gamut UHDTV Production, SMPTE Meetings and Conferences ( October 2015); SMPTE, 2015, ISBN: 978-1-61482-956-0. Available at https://doi.org/10.5594/M001627

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Hiroaki Iwasaki, Tetsuya Hayashida, Kenichiro Masaoka, Masanori Shimizu, Takayuki Yamashita, and Wataru Iwai; Color Rendering Index Value Requirement for Wide-Gamut UHDTV Production, SMPTE Meetings and Conferences ( October 2015); SMPTE, 2015, ISBN: 978-1-61482-956-0. Available at https://doi.org/10.5594/M001627

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<span class="citation">Hiroaki Iwasaki, Tetsuya Hayashida, Kenichiro Masaoka, Masanori Shimizu, Takayuki Yamashita, and Wataru Iwai; <cite>Color Rendering Index Value Requirement for Wide-Gamut UHDTV Production</cite>, SMPTE Meetings and Conferences ( October 2015); SMPTE, 2015, ISBN: 978-1-61482-956-0. Available at <a href="https://doi.org/10.5594/M001627" target="_blank" rel="noopener">https://doi.org/10.5594/M001627</a></span>

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Hiroaki Iwasaki, Tetsuya Hayashida, Kenichiro Masaoka, Masanori Shimizu, Takayuki Yamashita, and Wataru Iwai; <cite id="bib-10-5594-m001627">Color Rendering Index Value Requirement for Wide-Gamut UHDTV Production</cite>, SMPTE Meetings and Conferences ( October 2015); SMPTE, 2015, ISBN: 978-1-61482-956-0
<span class="doi">10.5594/M001627</span>
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