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One-parameter subgroups and the chromaticity properties of time-changing illumination spectra
Linköping University, Department of Science and Technology, Digital Media. Linköping University, The Institute of Technology.ORCID iD: 0000-0001-7557-4904
Hernánde-Andrés, J., Department of Optics, Sciences Faculty, University of Granada, 18071 Granada, Spain.
2003 (English)Conference paper (Other academic)
Abstract [en]

Understanding the properties of time-varying illumination spectra is of importance in all applications where dynamical color changes due to changes in illumination characteristics have to be analyzed or synthesized. Examples are (dynamical) color constancy and the creation of realistic animations. In this article we show how group theoretical methods can be used to describe sequences of time changing illumination spectra with only few parameters. From the description we can also derive a differential equation that describes the illumination changes. We illustrate the method with investigations of black-body radiation and measured sequences of daylight spectra.

Place, publisher, year, edition, pages
2003. Vol. 5008, 237-248 p.
Keyword [en]
Invariance, Lie-theory, Linearization, Multi-spectral
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-46624DOI: 10.1117/12.472025OAI: diva2:267520
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2016-08-31

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ReferencesLink to record
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