Light and color in the wild

Pont, S. (Speaker)

Activity: Talk or presentationTalk or presentation at a conference


Light in natural scenes can be described as a light field. Light fields capture all there is to see in scenes. We developed methods and tools for the measurement and visualization of the first order properties of optical (physical, objective) and visual (perceptual, subjective) light fields, including their spatial and angular distributions. These methods are generic and can be used for any type of scene ("in the wild"). We found that perceptual light field structures are simplified with respect to the optical ones. They can be described by a framework, which, at a phenomenological level, agrees with Richard Kelly's popular (in practice) lighting design approach: a weighted combination of ambient, focus and texture or brilliance light layers. Currently we are extending our research to the color domain via theoretical modeling and simulation of basic color effects in 3D spaces, empirical testing and visualization. Preliminary results show the occurrence of systematic hue, saturation and brightness effects in light fields, which are relevant for, for instance, perception research, architecture and computer graphics
Period8 Jul 2019
Event titleICVS: 25th Symposium of the International Colour Vision Society
Event typeConference
Conference number25th
LocationRiga, Latvia