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Biological Cybernetics

, Volume 38, Issue 3, pp 171–178 | Cite as

A transducer function for threshold and suprathreshold human vision

  • Hugh R. Wilson
Article

Abstract

A nonlinear function is derived to describe the contrast transduction process for human visual mechanisms. This function is sigmoid in form, having an accelerating nonlinearity at low contrasts and a compressive nonlinearity at high contrasts. The resulting formulation is consistent with both signal detection theory and with Quick's (1974) equation for probability summation. Similarities between the present description of human vision and properties of complex cells in cat visual cortex are noted.

Keywords

Visual Cortex Signal Detection Nonlinear Function Complex Cell Detection Theory 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1980

Authors and Affiliations

  • Hugh R. Wilson
    • 1
  1. 1.Department of Biophysics and Theoretical BiologyThe University of ChicagoChicagoUSA

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