LINEAR SEPARABILITY AND REDUNDANT COLOUR CODING IN VISUAL SEARCH DISPLAYS

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Authors
  1. Bauer, B.
  2. McFadden, S.M.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
Subjects sought a unique target shape in a display of distractor shapes under three colour coding conditions. In the no colour coding condition (NCC) all shapes shared the same colour. In the two colour-coded conditions, the target was uniquely and redundantly colour coded with a colour whose CIE 1976 UCS chromaticity coordinates were either linearly separable (LS) or not linearly separable (NLS) from the set of distractor chromaticity coordinates. Performance was optimal under LS coding, was reduced under NLS coding and was least efficient in the NCC condition. We discuss the implications of these results for refining colour selection algorithms and for colour coding in situation where the gamut of available colours is limited.
Keywords
Linear separability;Visual search;Colour discrimination
Report Number
DCIEM-96-P-22 — Paper
Date of publication
30 Nov 1996
Number of Pages
13
Reprinted from
Displays, vol 18, 1997, p 21-28
DSTKIM No
98-00042
CANDIS No
506698
Format(s):
Hardcopy;Document Image stored on Optical Disk

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