A possible mechanism of curvature coding in early vision

Rodrigo F. Oliveira; Luciano da Fonoura Costa; Antonio C. Roque

doi:10.1016/j.neucom.2004.10.064

A possible mechanism of curvature coding in early vision

Rodrigo F. Oliveira, Luciano da Fonoura Costa, Antonio C. Roque

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

This paper addresses the issue of curvature coding in the mammalian visual system. Considering the successful account of cortical neurons as detectors of features of visual stimuli like orientation and spatial frequency among others, we discuss the role of curvature in visual processes, review some previous investigations on curvature and present a possible biologically plausible model of curvature detection. This model requires only orientation selective neurons (simple cells) and short-range connections, both known and well-documented features of the mammalian primary visual cortex. The dependence of the model on different parameters is explored and discussed.

Original language	English (US)
Pages (from-to)	117-124
Number of pages	8
Journal	Neurocomputing
Volume	65-66
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.neucom.2004.10.064
State	Published - Jun 2005
Externally published	Yes

All Science Journal Classification (ASJC) codes

Computer Science Applications
Cognitive Neuroscience
Artificial Intelligence

Keywords

Contextual effects
Curvature detection
Orientation selectivity
Short-range connections
Visual system

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10.1016/j.neucom.2004.10.064

Cite this

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title = "A possible mechanism of curvature coding in early vision",

abstract = "This paper addresses the issue of curvature coding in the mammalian visual system. Considering the successful account of cortical neurons as detectors of features of visual stimuli like orientation and spatial frequency among others, we discuss the role of curvature in visual processes, review some previous investigations on curvature and present a possible biologically plausible model of curvature detection. This model requires only orientation selective neurons (simple cells) and short-range connections, both known and well-documented features of the mammalian primary visual cortex. The dependence of the model on different parameters is explored and discussed.",

keywords = "Contextual effects, Curvature detection, Orientation selectivity, Short-range connections, Visual system",

author = "Oliveira, {Rodrigo F.} and {da Fonoura Costa}, Luciano and Roque, {Antonio C.}",

note = "Funding Information: This work was supported by FAPESP. RFO would like to thank the students and organizers of the 7th Edition of the EU Advanced Course in Computational Neuroscience, especially Lars Schwabe and Klaus Obermayer for valuable discussion on an early implementation of the research presented here. ACR and LFC thank FAPESP and CNPq for financial support. ",

year = "2005",

month = jun,

doi = "10.1016/j.neucom.2004.10.064",

language = "English (US)",

volume = "65-66",

pages = "117--124",

journal = "Neurocomputing",

issn = "0925-2312",

publisher = "Elsevier",

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}

TY - JOUR

T1 - A possible mechanism of curvature coding in early vision

AU - Oliveira, Rodrigo F.

AU - da Fonoura Costa, Luciano

AU - Roque, Antonio C.

N1 - Funding Information: This work was supported by FAPESP. RFO would like to thank the students and organizers of the 7th Edition of the EU Advanced Course in Computational Neuroscience, especially Lars Schwabe and Klaus Obermayer for valuable discussion on an early implementation of the research presented here. ACR and LFC thank FAPESP and CNPq for financial support.

PY - 2005/6

Y1 - 2005/6

N2 - This paper addresses the issue of curvature coding in the mammalian visual system. Considering the successful account of cortical neurons as detectors of features of visual stimuli like orientation and spatial frequency among others, we discuss the role of curvature in visual processes, review some previous investigations on curvature and present a possible biologically plausible model of curvature detection. This model requires only orientation selective neurons (simple cells) and short-range connections, both known and well-documented features of the mammalian primary visual cortex. The dependence of the model on different parameters is explored and discussed.

AB - This paper addresses the issue of curvature coding in the mammalian visual system. Considering the successful account of cortical neurons as detectors of features of visual stimuli like orientation and spatial frequency among others, we discuss the role of curvature in visual processes, review some previous investigations on curvature and present a possible biologically plausible model of curvature detection. This model requires only orientation selective neurons (simple cells) and short-range connections, both known and well-documented features of the mammalian primary visual cortex. The dependence of the model on different parameters is explored and discussed.

KW - Contextual effects

KW - Curvature detection

KW - Orientation selectivity

KW - Short-range connections

KW - Visual system

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DO - 10.1016/j.neucom.2004.10.064

M3 - Article

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SN - 0925-2312

VL - 65-66

SP - 117

EP - 124

JO - Neurocomputing

JF - Neurocomputing

IS - SPEC. ISS.

ER -

A possible mechanism of curvature coding in early vision

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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