Document Detail


Thresholds of color attribute differences in detecting camouflaged textures.
MedLine Citation:
PMID:  15599068     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We examined the threshold at which a camouflaged color texture pattern (target) embedded in a surrounding colored texture pattern (background) was discriminated by making the difference between their color distributions serve as a cue. The texture consisted of 900 colored disks. The color applied to the disk was chosen from a normal distribution with the mean and the standard deviation set beforehand. The mean of the background's distribution was a standard achromatic color set at L*=40, u*=0, and v*=0 of CIELUV. In experiment 1, the mean of the target's color distribution was shifted from the background's one. The threshold for the mean of the target's color distribution depended on the standard deviation and increased as the standard deviation became bigger. In experiment 2, the standard deviation of the target's color distribution was shifted. There was the slight dependence of threshold of the standard deviation of the target's distribution on that of the background's distribution. In experiment 3, both of the mean and the standard deviation of the target's color distribution were shifted at the same time. The threshold was not determined by each of the mean and the standard deviation independently. There seemed to be some compensating contribution between them to each other. The threshold could be characterized by Doyle metric or modified Doyle metric.
Authors:
Yukio Yamashita; Philsu Lee; Shoji Sunaga
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of physiological anthropology and applied human science     Volume:  23     ISSN:  1345-3475     ISO Abbreviation:  J Physiol Anthropol Appl Human Sci     Publication Date:  2004 Nov 
Date Detail:
Created Date:  2004-12-15     Completed Date:  2005-04-08     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  100930389     Medline TA:  J Physiol Anthropol Appl Human Sci     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  237-41     Citation Subset:  IM    
Affiliation:
Faculty of Design, Kyushu University, 4-9-1 Shiobaru, Minami-ku, Fukuoka 815-8540, Japan. yukio@design.kyushu-u.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Color*
Color Perception*
Female
Humans
Male
Random Allocation
Sensory Thresholds

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


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