Results 11 to 20 of about 38,455 (230)

A feedforward mechanism for human-like contour integration. [PDF]

open access: yesPLoS Computational Biology
Deep neural network models provide a powerful experimental platform for exploring core mechanisms underlying human visual perception, such as perceptual grouping and contour integration-the process of linking local edge elements to arrive at a unified ...
Fenil R Doshi   +2 more
doaj   +2 more sources

Do We Need Another Neural Correlate of Contour Integration? [PDF]

open access: yesi-Perception, 2014
Gilad and colleagues use an elegant combination of voltage-sensitive dyes and high temporal and spatial resolution optical imaging to visualize a differential response to collinear contour elements in monkey V1.
Lee de-Wit, Dietrich Samuel Schwarzkopf
doaj   +2 more sources

Perceptual load modulates contour integration in conscious and unconscious states [PDF]

open access: yesPeerJ, 2019
Previous research has documented that contour detection and integration may either be affected by local features such as the distances between elements or by high-level cognitive factors such as attention in our visual system. Less is known about how low
Kaiwen Cheng   +4 more
doaj   +3 more sources

An Event-Related Potential Examination of Contour Integration Deficits in Schizophrenia [PDF]

open access: yesFrontiers in Psychology, 2013
Perceptual organization, which refers to the ability to integrate fragments of stimuli to form a representation of a whole edge, part, or object, is impaired in schizophrenia. A contour integration paradigm, involving detection of a set of Gabor patches
Pamela D Butler   +17 more
doaj   +2 more sources

Ensemble Empirical Mode Decomposition Analysis of EEG Data Collected during a Contour Integration Task. [PDF]

open access: yesPLoS ONE, 2015
We discuss a data-driven analysis of EEG data recorded during a combined EEG/fMRI study of visual processing during a contour integration task. The analysis is based on an ensemble empirical mode decomposition (EEMD) and discusses characteristic features
Karema Al-Subari   +5 more
doaj   +2 more sources

On the Critical Velocity of Moving Force and Instability of Moving Mass in Layered Railway Track Models by Semianalytical Approaches

open access: yesVibration, 2023
This article presents a comparison between layered models of a railway track. All analyses are based on semianalytical approaches to show how powerful they can be.
Zuzana Dimitrovová
doaj   +1 more source

Instability of Vibrations of Mass(es) Moving Uniformly on a Two-Layer Track Model: Parameters Leading to Irregular Cases and Associated Implications for Railway Design

open access: yesApplied Sciences, 2023
Ballasted railway tracks can be modeled using reduced/simplified models composed of several layers of discrete components. This paper deals with the two-layer model, which is very popular due to its computational efficiency.
Zuzana Dimitrovová
doaj   +1 more source

A Meshless Method Based on the Laplace Transform for the 2D Multi-Term Time Fractional Partial Integro-Differential Equation

open access: yesMathematics, 2020
In this article, we propose a localized transform based meshless method for approximating the solution of the 2D multi-term partial integro-differential equation involving the time fractional derivative in Caputo’s sense with a weakly singular kernel ...
Kamran Kamran   +3 more
doaj   +1 more source

Bayesian contour integration [PDF]

open access: yesPerception & Psychophysics, 2001
The process by which the human visual system parses an image into contours, surfaces, and objects--perceptual grouping--has proven difficult to capture in a rigorous and general theory. A natural candidate for such a theory is Bayesian probability theory, which provides optimal interpretations of data under conditions of uncertainty.
openaire   +2 more sources

Resultants and contour integrals [PDF]

open access: yesFunctional Analysis and Its Applications, 2012
9 ...
Morozov, A., Shakirov, Sh.
openaire   +2 more sources

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