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Conference Papers Year : 2002

Contour Detection by Synchronization of Integrate-and-Fire Neurons

Etienne Hugues
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Olivier Rochel


We present a biologically inspired spiking neural network which is able to detect contours in grey level images by synchronization of neurons. This network is made of integrate-and-fire neurons, spaced on a triangular network, whose oriented receptive field is constructed by a wavelet which specifically detects edges. The neurons are excitatorily and locally connected between receptive fields that tend to detect the same contour. A contour, if its width is not too large, activates a chain of neurons, with some heterogeneity in the inputs. The capacity of a chain to synchronize with respect to such heterogeneity is studied. Synchronization on a contour is found to be possible for a sufficiently large width.
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inria-00100986 , version 1 (26-09-2006)


  • HAL Id : inria-00100986 , version 1


Etienne Hugues, Florent Guilleux, Olivier Rochel. Contour Detection by Synchronization of Integrate-and-Fire Neurons. 2nd internationale Workshop on Biologically Motivated Computer Vision - BMCV 2002, Max Planck Institute for Biological Cybernetics, Nov 2002, Tübingen, Allemagne, pp.60-69. ⟨inria-00100986⟩
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