A unified model of illusory and occluded contour interpolation

作者：Kalar Donald J^*; Garrigan Patrick; Wickens Thomas D; Hilger James D; Kellman Philip J

来源：Vision Research, 2010, 50(3): 284-299.

DOI：10.1016/j.visres.2009.10.011

• Illusory contours
• Occluded contours
• Identity hypothesis
• Contour interpolation
• Computational modeling

Models of contour interpolation have been proposed for illusory contour interpolation but seldom for interpolation of occluded contours. The identity hypothesis (Kellman & Loukides, 1987; Kellman & Shipley, 1991) posits that an early interpolation mechanism is shared by interpolated contours that are ultimately perceived as either illusory or occluded. Here we propose a model of such a unified interpolation mechanism for illusory and occluded contours, building on the framework established in Heitger, von der Heydr, Peterhans, Rosenthaler, and Kubler (1998). We show that a single, neurally plausible mechanism that is consistent with the identity hypothesis also generates contour interpolations in agreement with perception for cases of transparency, self-splitting objects, interpolation with mixed boundary assignment, and "quasimodal" interpolations. Limiting cases for this local, feed-forward approach are presented, demonstrating that both early, local interpolation mechanisms and non-local scene constraints are necessary for describing the perception of interpolated contours.

• 出版日期2010-2-8