4 found
See also
David H. Foster
University of Manchester
  1. Does colour constancy exist?David H. Foster - 2003 - Trends in Cognitive Sciences 7 (10):439-443.
    For a stable visual world, the colours of objects should appear the same under different lights. This property of colour constancy has been assumed to be fundamental to vision, and many experimental attempts have been made to quantify it. I contend here, however, that the usual methods of measurement are either too coarse or concentrate not on colour constancy itself, but on other, complementary aspects of scene perception. Whether colour constancy exists other than in nominal terms remains unclear.
    Direct download (8 more)  
    Export citation  
    Bookmark   15 citations  
  2.  30
    Natural groups of transformations underlying apparent motion and perceived object shape and color.David H. Foster - 2001 - Behavioral and Brain Sciences 24 (4):665-668.
    Shepard's analysis of how shape, motion, and color are perceptually represented can be generalized. Apparent motion and shape may be associated with a group of spatial transformations, accounting for rigid and plastic motion, and perceived object color may be associated with a group of illuminant transformations, accounting for the discriminability of surface-reflectance changes and illuminant changes beyond daylight. The phenomenological and mathematical parallels between these perceptual domains may indicate common organizational rules, rather than specific ecological adaptations. [Barlow; Hecht; Kubovy & (...)
    Direct download (6 more)  
    Export citation  
  3.  10
    Experimental test of a network theory of vision.David H. Foster - 1983 - Behavioral and Brain Sciences 6 (4):664.
  4.  8
    Qualitative cues in the discrimination of affine-transformed minimal patterns.Helja T. Kukkonen, David H. Foster, Jonathan R. Wood, Johan Wagemans & Luc Van Gool - 1996 - In Enrique Villanueva (ed.), Perception. Ridgeview. pp. 195-206.
    An important factor in judging whether two retinal images arise from the same object viewed from different positions may be the presence of certain properties or cues that are 'qualitative invariants' with respect to the natural transformations, particularly affine transformations, associated with changes in viewpoint. To test whether observers use certain affine qualitative cues such as concavity, convexity, collinearity, and parallelism of the image elements, a 'same-different' discrimination experiment was carried out with planar patterns that were defined by four points (...)
    Direct download  
    Export citation