Texture Segmentation using the Boundary Contour System

[Dario Ringach]

How can the Boundary Contour System segment textures with identical
second-order statistics?  I mean, first-order differences are easily
discovered by the "contrast sensitive" cells at the first stage of the
BCS (the OC filter), while the CC-loop can account for second-order
(dipole) statistics; but how can the BCS segment textures, as the ones
presented by Julez, which have even identical third-order statistics
but are easily discriminable?  Is the BCS/FCS model consistent with
Julez's Textons theory?  If so, in which way?

Thanks!
--
Dario
dario at techunix.bitnet