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Early Visual Processing: Feature Detection or Spatial Filtering?

  • Russell L. DeValois
Part of the Lecture Notes in Biomathematics book series (LNBM, volume 44)

Abstract

The visual system has been extensively studied for more than a century with both psychophysical and physiological techniques. This research has provided us with detailed knowledge concerning many aspects of how the early stages of the system operate. We understand (in considerable detail) the optics of the eye, the nature of the transformation of light into neural activity, and the first stages of the processing of this neural information. Not only do we now have much information on retinal processing, but also on the nature of the transformations at the first two central levels (the lateral geniculate nucleus and the striate cortex), although what happens to visual information beyond that in later cortical areas is still only dimly understood.

Keywords

Spatial Frequency Cortical Cell Contrast Sensitivity Fourier Spectrum Complex Cell 
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 Berlin Heidelberg 1982

Authors and Affiliations

  • Russell L. DeValois
    • 1
  1. 1.University of CaliforniaBerkeleyUSA

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