Open AccessAppropriate indices for color rendition and their recommended values for UHDTV production using white LED lighting
Author(s) -
Tomohiro Hayashida,
Hiroaki Iwasaki,
Kenichiro Masaoka,
Masanori Shimizu,
Takayuki Yamashita,
Wataru Iwai
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.015010
Subject(s) - color rendering index , rendering (computer graphics) , colorimetry , computer science , white light , luminous efficacy , led lamp , color difference , optics , high definition television , artificial intelligence , computer vision , materials science , physics , telecommunications , enhanced data rates for gsm evolution , layer (electronics) , composite material
We selected appropriate indices for color rendition and determined their recommended values for ultra-high-definition television (UHDTV) production using white LED lighting. Since the spectral sensitivities of UHDTV cameras can be designed to approximate the ideal spectral sensitivities of UHDTV colorimetry, they have more accurate color reproduction than HDTV cameras, and thus the color-rendering properties of the lighting are critical. Comparing images taken under white LEDs with conventional color rendering indices (R a , R 9-14 ) and recently proposed methods for evaluating color rendition of CQS, TM-30, Q a , and SSI, we found the combination of R a and R 9 appropriate. For white LED lighting, R a ≥ 90 and R 9 ≥ 80 are recommended for UHDTV production.