A cell model in the ventral visual pathway for the detection of circles of curvature constituting figures.

ABSTRACT: The contour of an arbitrary figure can be represented as a group of circles of curvature in contact with it, with each curvature circle represented by its center O_C and radius r. We propose a series of cell models for detecting this circle, which is composed of a lateral geniculate nucleus (LGN) cell, nondirectionally selective (NDS) simple cell, and curvature-circle detection cell (CDC). The LGN and NDS simple cells were previously modeled. The CDC has been modeled as follows. Each tangent in contact with this circle is detected by an NDS simple cell that performs the Hough transformation of LGN cell responses, and then this tangent is transformed to a three-dimensional (3D) normal line in a CDC column. This transformation has been named a 3D normal-line transform. Performing t

SUBMITTER: Kawakami S 

PROVIDER: S-EPMC7711303 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature