Results 11 to 20 of about 80 (58)
Neurogeometry of V1 and Kanizsa Contours [PDF]
Axiomathes, 2003 We present a neuro-geometrical model for generating the shape of Kanizsa's modal subjective contours which is based on the functional architecture of the primary areas of the visual cortex. We focus on V1 and its pinwheel structure and model it as a discrete approximation of a continuous fibration π: R × P → P with base space the space of the retina R ...
Miolane, Nina, Pennec, Xavier
exaly +6 more sources
Neurogeometry of Perception: Isotropic and Anisotropic Aspects [PDF]
Axiomathes, 2019 In this paper we first recall the definition of geometical model of the visual cortex, focusing in particular on the geometrical properties of horizontal cortical connectivity. Then we recognize that histograms of edges - co-occurrences are not isotropic distributed, and are strongly biased in horizontal and vertical directions of the stimulus. Finally
Citti, G, Sarti, A
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Individuation of 3D Perceptual Units from Neurogeometry of Binocular Cells
SIAM Journal on Imaging SciencesWe model the functional architecture of the early stages of three-dimensional vision by extending the neurogeometric sub-Riemannian model for stereo-vision introduced in \cite{BCSZ23}. A new framework for correspondence is introduced that integrates a neural-based algorithm to achieve stereo correspondence locally while, simultaneously, organizing the ...
Maria Virginia Bolelli +3 more
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Neurogeometry of reaching [PDF]
Neurogéométrie du reaching L'objectif de la thèse est de développer un modèle pour le comportement fonctionnel des neurones du cortex moteur primaire (M1) responsables des mouvements d'atteinte du bras. A partir des données neurophysiologiques de Georgopoulos, nous fournissons une première structure de fibré compatible avec l ...
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Neurogeometry of stereo vision [PDF]
Neurogéométrie de la vision stéréo Ce travail vise à développer un modèle neurogéométrique de la vision stéréo, basé sur les architectures corticales impliquées dans le problème de la perception 3D et les mécanismes neuronaux générés par les disparités rétiniennes.
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A new blind color watermarking based on a psychovisual model. [PDF]
J Math Neurosci, 2020 Lefevre P, Alleysson D, Carre P.
europepmc +1 more source
Pycabnn: Efficient and Extensible Software to Construct an Anatomical Basis for a Physiologically Realistic Neural Network Model. [PDF]
Front Neuroinform, 2020 Wichert I, Jee S, De Schutter E, Hong S.
europepmc +1 more source
Abstract The Al-Olofi Seven-Band Hierarchical Brain Model (A7-HBM–ΩΦ) presents an integrative neurogeometric and computational architecture describing multiscale brain oscillations through seven hierarchically organized frequency bands: δ (0.5–4 Hz), θ (4–8 Hz), α (8–12 Hz), σ (12–16 Hz), β (13–30 Hz), γ (30–80 Hz), and Ω (80–200 Hz ...
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The natverse, a versatile toolbox for combining and analysing neuroanatomical data. [PDF]
Elife, 2020 Bates AS +6 more
europepmc +1 more source
A sub-Riemannian model of the visual cortex with frequency and phase. [PDF]
J Math Neurosci, 2020 Baspinar E, Sarti A, Citti G.
europepmc +1 more source