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Illumination Estimation using a Multilinear Constraint on Dichromatic Planes

Resource type
Date created
2005-09
Authors/Contributors
Author: Toro, Javier
Author: Funt, Brian
Abstract
A new multilinear constraint on the color of the scene illuminant based on the dichromatic reflection model is proposed. The formulation avoids the problem, common to previous dichromatic methods, of having to first identify pixels corresponding to the same surface material. Once pixels from two or more materials have been identified, their corresponding dichromatic planes can be intersected to yield the illuminant color. However, it is not always easy to determine which pixels from an arbitrary region of an image belong to which dichromatic plane. The image region may cover an area of the scene encompassing several different materials and hence pixels from several different dichromatic planes. The new multilinear constraint accounts for this multiplicity of materials and provides a mechanism for choosing the most plausible illuminant from a finite set of candidate illuminants. The performance of this new method is tested on a database of real images.
Document
Description
Presented at the British Machine Vision Conference, Sept. 2005.
Published as
Toro, J., and Funt, B., "Illumination Estimation Using a Multilinear Constraint on Dichromatic Planes," Proc. British Machine Vision Conference 2005, eds. W.F. Clocksin, A.W. Fitzgibbon, and P.H.S. Torr. Oxford, Sept. 2005.
Copyright statement
Copyright is held by the author(s).
Scholarly level
Peer reviewed?
Yes
Language
English
Member of collection
Download file Size
Toro_Funt_BMVC_2005.pdf 60.18 KB

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