Recognition of partially occluded and rotated images with a network of spiking neurons

  • Authors:
  • Joo-Heon Shin;David Smith;Waldemar Swiercz;Kevin Staley;J. Terry Rickard;Javier Montero;Lukasz A. Kurgan;Krzysztof J. Cios

  • Affiliations:
  • Department of Computer Science, Virginia Common-wealth University, Richmond, VA;University of Colorado Denver, Denver, CO;Massachusetts General Hospital, Boston, MA and Harvard Medical School, Boston, MA;Massachusetts General Hospital, Boston, MA and Harvard Medical School, Boston, MA;Distributed Infinity, Inc., Larkspur, CO;Department of Statistics and Operational Research, Faculty of Mathematics, Complutense University of Madrid, Madrid, Spain;Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, Canada;Department of Computer Science, Virginia Commonwealth University, Richmond, VA and IITiS Polish Academy of Sciences, Gliwice, Poland

  • Venue:
  • IEEE Transactions on Neural Networks
  • Year:
  • 2010

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Abstract

In this paper, we introduce a novel system for recognition of partially occluded and rotated images. The system is based on a hierarchical network of integrate-and-fire spiking neurons with random synaptic connections and a novel organization process. The network generates integrated output sequences that are used for image classification. The proposed network is shown to provide satisfactory predictive performance given that the number of the recognition neurons and synaptic connections are adjusted to the size of the input image. Comparison of synaptic plasticity activity rule (SAPR) and spike timing dependant plasticity rules, which are used to learn connections between the spiking neurons, indicates that the former gives better results and thus the SAPR rule is used. Test results show that the proposed network performs better than a recognition system based on support vector machines.