Occlusion Awaits Disclosure

  • Gijs Plomp
  • Cees van Leeuwen


At any moment in time, the world presents us with visual information that is inherently incomplete. This incompleteness arises to a large extent from the projection of a three-dimensional (3D) world onto a two-dimensional (2D) surface, the retina. The projected image fails to reveal, among other things, the way objects and surfaces extend behind others so that they appear partly occluded. From the observer’s point of view anything whatsoever could be hidden behind an occluding object, including parts of the object itself; there is no principled way to derive what is there. Nonetheless we usually perceive occluded parts as having a determinate structure.


Completion Time Visual Search Primary Visual Cortex Illusory Contour Occlude Object 


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Copyright information

© Springer 2007

Authors and Affiliations

  • Gijs Plomp
    • 1
    • 2
  • Cees van Leeuwen
    • 1
    • 2
  1. 1.Laboratory for Perceptual DynamicsBSI RIKENSaitamaJapan
  2. 2.Business SchoolSunderland UniversitySunderlandUK

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