Evaluation of whiteness indices

S. Ma, Minchen Wei, J. Liang, B. Wang, M.R. Pointer, M.R. Luo

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

White objects with FWAs have been manufactured for many decades to interact with conventional illuminants such as daylight and incandescent light. With the wide application of LED featuring tuneable spectral power distribution (spd), more research is preferred to investigate whiteness perception under different LED lighting conditions. With this in mind, an experiment was conducted. In this study, 50 textile and paper samples were assessed using 4 rating scales in a psyholphysical experiment. The results showed that SPD can strongly affect the performance of CIE and Uchida whiteness metrics. In order to extend the lighting conditions to different CCTs, these metrics were modified to adopt different white points using CAT02 chromatic adaptation to transofrm the other illuminants to D65. The new metrics outperformed the original model greatly.
Original languageEnglish
Title of host publication[Missing Source Name from PIRA]
PublisherCIE International Commission on Illumination
Pages112-117
Number of pages6
ISBN (Print)9783902842657
Publication statusPublished - Mar 2016
EventCIE Lighting Quality and Energy Efficiency Conference -
Duration: 1 Mar 2016 → …

Conference

ConferenceCIE Lighting Quality and Energy Efficiency Conference
Period1/03/16 → …

Keywords

  • Whiteness perception
  • Whiteness formulae
  • LED
  • CCT

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