Paper details

Title: Beyond colour gamuts: Novel metrics for the reproduction of photoreceptor signals

Authors: A. C. Hexley , T. Morimoto , H. E. Smithson , M. Spitschan

Abstract: Obtained from CrossRef

Abstract Colour gamuts describe the chromaticity reproduction capabilities of a display, i.e. its ability to reproduce the relative cone excitations from real-world radiance spectra. While the cones dominate “canonical” visual function (i.e. perception of colour, space, and motion) under photopic light levels, they are not the only photoreceptors in the human retina. Rods and melanopsin-containing intrinsically photosensitive retinal ganglion cells (ipRGCs) also respond to light and contribute to both visual and non-visual light responses, including circadian rhythms, sleep-wake control, mood, pupil size, and alertness. Three-primary display technologies, with their focus on reproducing colour, are not designed to reproduce the rod and melanopsin excitations. Moreover, conventional display metrics used to characterize three-primary displays fail to describe the display’s ability (or inability) to reproduce rod and melanopsin excitations, and thus do not capture the display’s ability to reproduce the full human physiological response to light. In this paper, three novel physiologically relevant metrics are proposed for quantifying the reproduction and distortion of the photoreceptor signals by visual displays. A novel equal-luminance photoreceptor excitation diagram is proposed, extending the well-known MacLeod-Boynton chromaticity diagram, to allow visualizations of the five-dimensional photoreceptor signal space in a three-dimensional projection.

Work publication date: 2021-03-01

OpenAlex: https://openalex.org/W3133925542

CODECHECK details

Certificate identifier: 2026-024

Codechecker name: Simon Christ

Time of check: 2026-09-26

Repository: https://github.com/codecheckers/SchneiderMorimotoEtAl_ColorResAppl_2026

Full certificate: https://doi.org/10.5281/zenodo.23166593

Certificate on Wikidata: Q141668972

Type: community

Venue: preprint

Summary:

The code check was straightforward. Only the toolboxes “Statistics and Machine Learning” and “Image Processing” needed to be added in contrast to what was stated in the README. Also the preprint was not up-to-date with the code of the repository but the authors provided the current version upon request.

Cite this certificate: Citation metadata retrieved from data.crosscite.org

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