DocumentCode
1814306
Title
Cone ratios cannot discriminate between reflectance and illuminant borders
Author
Fan, Lawrence ; Finkel, Leif ; Buchsbaum, Gershon
Author_Institution
Dept. of Bioeng., Pennsylvania Univ., Philadelphia, PA, USA
fYear
1996
fDate
14-15 Mar 1996
Firstpage
32
Lastpage
33
Abstract
Invariance of cone ratios has been proposed to be a possible basis for perceptual color constancy. Cone excitation ratios were computed across reflectance edges viewed under different illuminants as well as across illuminant edges. The results of the authors´ computations suggest that such a mechanism is incomplete. Cone ratios maintain color constancy across reflectance edges under a variety of illuminants, yet they are unable to discern whether a border is a reflectance edge or an illuminant edge
Keywords
cellular biophysics; colour vision; eye; reflectivity; visual perception; cone excitation ratios; illuminant borders; illuminant edge; perceived surface color; perceptual color constancy; reflectance borders; reflectance edge; reflectance edges; Area measurement; Biomedical engineering; Books; Humans; Interpolation; Layout; Power distribution; Reflectivity;
fLanguage
English
Publisher
ieee
Conference_Titel
Bioengineering Conference, 1996., Proceedings of the 1996 IEEE Twenty-Second Annual Northeast
Conference_Location
New Brunswick, NJ
Print_ISBN
0-7803-3204-0
Type
conf
DOI
10.1109/NEBC.1996.503203
Filename
503203
Link To Document