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》 资源 》论文》Third-Order Edge Statistics: Contour Continuation, Curvature, and Cortical Connections

Third-Order Edge Statistics: Contour Continuation, Curvature, and Cortical Connections

2020-01-16 | |  52 |   43 |   0

Abstract

Association field models have attempted to explain human contour grouping performance, and to explain the mean frequency of long-range horizontal connections across cortical columns in V1. However, association fields only depend on the pairwise statistics of edges in natural scenes. We develop a spectral test of the sufficiency of pairwise statistics and show there is significant higher order structure. An analysis using a probabilistic spectral embedding reveals curvature-dependent components.

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