To model association fields that underly perceptional organization (gestalt) in psychophysics
we consider the problem P curve of minimizing ∫_0^ℓξ^2+κ^2(s)\rmds for a planar curve …

We propose two strategies to improve the quality of tractography results computed from
diffusion weighted magnetic resonance imaging (DW-MRI) data. Both methods are based on …

Tree-like structures, such as retinal images, are widely studied in computer-aided diagnosis
systems for largescale screening programs. Despite several segmentation and tracking …

In this paper we show that the emergence of perceptual units in V1 can be explained in
terms of a physical mechanism of simmetry breaking of the mean field neural equation. We …

An extended four-dimensional version of the traditional Petitot–Citti–Sarti model on contour
completion in the visual cortex is examined. The neural configuration space is considered as …

In this paper we develop a geometrical model of functional architecture for the processing of
spatio-temporal visual stimuli. The model arises from the properties of the receptive field …

We propose a robust and fully automatic method for the analysis of vessel tortuosity. Our
method does not rely on pre-segmentation of vessels, but instead acts directly on retinal …

Retinal images provide early signs of diabetic retinopathy, glaucoma, and hypertension.
These signs can be investigated based on microaneurysms or smaller vessels. The …

In this paper we present a new model for the generation of orientation preference maps in
the primary visual cortex (V1), considering both orientation and scale features. First we …

In this paper, we present a novel model of the primary visual cortex (V1) based on
orientation, frequency, and phase selective behavior of V1 simple cells. We start from the …