Fourier and Non-Fourier Pattern Discrimination Compared

  title={Fourier and Non-Fourier Pattern Discrimination Compared},
  author={Li-Ming Lin and Hugh R. Wilson},
  journal={Vision Research},
Various studies indicate the existence of non-Fourier visual mechanisms that can extract non-luminance cues (e.g., contrast modulation) as well as a Fourier mechanism that deals with luminance variation only. We compared the pattern discrimination performance of the non-Fourier mechanism with that of the Fourier mechanism by using orientation discrimination and spatial-frequency discrimination tasks. The Fourier patterns used were D6s, the sixth spatial derivative of a Gaussian function… CONTINUE READING

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