1. Quantifying the spatial, temporal, angular and spectral structure of effective daylight in perceptually meaningful ways
- Author
-
Cehao Yu, Maarten Wijntjes, Elmar Eisemann, and Sylvia Pont
- Subjects
FOS: Computer and information sciences ,Physics - Atmospheric and Oceanic Physics ,Computer Science - Graphics ,OA-Fund TU Delft ,Biological Physics (physics.bio-ph) ,Atmospheric and Oceanic Physics (physics.ao-ph) ,FOS: Physical sciences ,Physics - Biological Physics ,Atomic and Molecular Physics, and Optics ,Graphics (cs.GR) ,Physics - Optics ,Optics (physics.optics) - Abstract
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.
- Published
- 2023
- Full Text
- View/download PDF