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

Autor:	Lawlor, Matthew, Zucker, Steven
Rok vydání:	2013
Předmět:	Quantitative Biology - Neurons and Cognition
Druh dokumentu:	Working Paper
Popis:	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. Comment: 8 Pages, 8 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1306.3285 Zobrazit plný text záznamu View this record from Arxiv