Title	A Method of Estimating Non-parallel Illumination Based on Extended Gray-world Assumption
Author	Tomohiro Teranishi, Takashi Toriu
Citation	Vol. 11  No. 3  pp. 139-146
Keywords	Color constancy, gray-world assumption, object recognition, non-parallel illumination, object color

Title	Characteristics of the Visual Perception under the Dark Adaptation Processing (The Lighting Systems for Signboards)
Author	Kazuo Sendai, Hiroki Fujita, Mamoru Takamatsu, Yoshio Nakashima
Citation	Vol. 11  No. 8  pp. 66-71
Keywords	Dark adaptation, Object color, Llight source color, Sky luminance, Lighting systems of signboards