Properties of second-order spatial frequency channels

  title={Properties of second-order spatial frequency channels},
  author={Michael S. Landy and İpek Oruç},
  journal={Vision Research},
The segregation of texture patterns may be carried out by a set of linear spatial filters (to enhance one of the constituent textures), a nonlinearity (to convert the higher contrast of response to that constituent to a higher mean response), and finally subsequent ("second-order") linear spatial filters (to provide a strong response to the texture-defined edge itself). In this paper, the properties of such second-order filters are characterized. Observers were required to detect or… CONTINUE READING
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