Surround modulation of global form perception.

  title={Surround modulation of global form perception.},
  author={Hsin-Hung Li and Chien-Chung Chen},
  journal={Journal of vision},
  volume={11 1},
We demonstrate a novel surround modulation of global form perception by using Glass patterns in a center-surround configuration. Glass patterns contain randomly distributed dot pairs, or dipoles, whose orientations are determined by a geometric transform. By integrating across dipoles, an observer can perceive a global structure in the image. We measured the coherence threshold, the minimum proportion of signal dots needed for an observer to detect the global form, at 75% accuracy. The… CONTINUE READING

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