Document Detail

Constructing surfaces and contours in displays of color from motion: the role of nearest neighbors and maximal disks.
MedLine Citation:
PMID:  10992954     Owner:  NLM     Status:  MEDLINE    
Color-from-motion displays consist of a sparse array of dots which never move but change color according to various algorithms. Yet such displays can trigger human vision to construct apparent motion of a subjective surface which is uniformly colored and bounded by a subjective contour. We show that the perceptual strength of this construction depends on the density and regularity of dot placement. We studied three objective measures of density and regularity: nearest-neighbor distance, mean of maximal disks, and variance of maximal disks. We found that nearest-neighbor mechanisms alone are inadequate to account for the perceptual strength of the subjective surfaces and contours. Mechanisms sensitive to areal gaps provide a more adequate account.
C Fidopiastis; D D Hoffman; W D Prophet; M Singh
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Perception     Volume:  29     ISSN:  0301-0066     ISO Abbreviation:  Perception     Publication Date:  2000  
Date Detail:
Created Date:  2000-10-04     Completed Date:  2000-10-04     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0372307     Medline TA:  Perception     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  567-80     Citation Subset:  IM; S    
Department of Cognitive Sciences, University of California, Irvine 92697, USA.
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MeSH Terms
Color Perception / physiology*
Form Perception / physiology*
Motion Perception / physiology*
Space Perception / physiology

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