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Publication Detail
Colour vision and local spatial vision: similarities and differences
  • Publication Type:
    Chapter
  • Authors:
    Griffin LD
  • Publisher:
    John Wiley & Sons
  • Publication date:
    15/03/2013
  • Pagination:
    449, 476
  • Editors:
    Albertazzi L
  • ISBN-10:
    1118329066
  • ISBN-13:
    9781118329061
  • Book title:
    Handbook of Experimental Phenomenology
  • Keywords:
    Psychology
Abstract
An analogy between the processing of colour vision and local spatial vision is proposed. The analogy extends over multiple processing stages. In the measurement stage the proximal stimulus is measured by a small number of linear filters. The analogy is between the filter systems used – both of which approximate a truncated Hermite Transform. In the invariance stage the aspect of these filter responses which informs about the distal scene is factored out. The analogy is between these factored spaces – in one case the Colour Solid, in the other the local image structure solid. In the categorization stages these solids are partitioned into a small number of qualitatively distinct sub-volumes. The analogy is between the category systems – in one case the Basic Colours, in the other case a system of image features. Finally, predictions of the location of the Basic Colour foci within the colour solid are made.
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