Document Detail


Visual system-response functions and estimating reflectance.
MedLine Citation:
PMID:  9088087     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The almost-illuminant-independent achromatic variable zeta [J. Opt. Soc. Am A 11, 1003 (1994)] is supplemented by two achromatic variables, both almost illuminant-independent. The results are numerically verified and obtained by means of so-called (human) visual system-response functions, defined as those linear combinations of the color-matching functions that constitute the best possible approximations to delta functions. It is argued that they and not the cone sensitivities are basic to understanding the visual system as a color-constant signal detection system. The three variables solve the color-constancy problem and define a chromatic adaptation transform for blackbody radiators of temperature T. The generalization of the results to arbitrary well-behaved illuminants is discussed.
Authors:
C van Trigt
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the Optical Society of America. A, Optics, image science, and vision     Volume:  14     ISSN:  1084-7529     ISO Abbreviation:  J Opt Soc Am A Opt Image Sci Vis     Publication Date:  1997 Apr 
Date Detail:
Created Date:  1997-05-02     Completed Date:  1997-05-02     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  9800943     Medline TA:  J Opt Soc Am A Opt Image Sci Vis     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  741-55     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Color Perception / physiology*
Humans
Light*
Mathematics
Models, Theoretical
Retinal Cone Photoreceptor Cells / physiology*
Sensory Thresholds

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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