Quantifying the spatial, temporal, angular and spectral structure of effective daylight in perceptually meaningful ways

Cehao Yu*, Maarten Wijntjes, Elmar Eisemann, Sylvia Pont

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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We present a method to capture the 7-dimensional light field structure, and translate it into perceptually-relevant information. Our spectral cubic illumination method quantifies objective correlates of perceptually relevant diffuse and directed light components, including their variations over time, space, in color and direction, and the environment’s response to sky and sunlight. We applied it “in the wild”, capturing how light on a sunny day differs between light and shadow, and how light varies over sunny and cloudy days. We discuss the added value of our method for capturing nuanced lighting effects on scene and object appearance, such as chromatic gradients.

Original languageEnglish
Pages (from-to)8953-8974
Number of pages22
JournalOptics Express
Issue number5
Publication statusPublished - 2023

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