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On the visual orientation of random dot Moiré patterns

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We studied the orientation perception of dot patterns with Moiré effect. The Moiré effect was achieved by rotating the original patterns over small angles. When the angle was increased the effect disappeared while the characteristics of orientation estimation remained unchanged. For relatively small angles the subjects performance can be described by a model based on the concept of least squared distance axis. For large angles of rotation this model has began to be unsufficient and a more refined model is proposed here.

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Lánsky, P., Mates, J. & Radil, T. On the visual orientation of random dot Moiré patterns. Biol. Cybern. 60, 213–219 (1989).

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  • Small Angle
  • Large Angle
  • Distance Axis
  • Refined Model
  • Visual Orientation