light source modelling is concerned with specific types of light
sources, the two most common of which are point sources and
daylight. Little attempt has been made, however, to relate
different types of sources to each other. Having a
theoretical framework to compare different types of light sources is
important for computer vision, in particular for understanding shading
and shadow cues. A vision system needs to take account of the
light source in order to interpret these cues. We have presented
a framework for comparing types of light sources which is based on a
dimensional analysis of the set of light rays in a free space.
e.g. We introduced a 4-D light source hypercube in which the
different types of sources may be embedded and compared.
- What is a Light Source?, M.S. Langer and S.W.
Zucker, IEEE Conf. on Computer Vision and Pattern Recognition. pp.
172-178, San Juan, PR (1997). (PDF) BEST PAPER AWARD
- Casting light on illumination: a computational model
and dimensional analysis of sources, M.S Langer, S.W.
Zucker, Computer Vision and Image Understanding. 65: (2):322-335,