Recognition of Partially Occluded and Rotated Images With a Network of Spiking Neurons

ArticleinIEEE Transactions on Neural Networks 21(11):1697-709 · November 2010with12 Reads
DOI: 10.1109/TNN.2010.2050600 · Source: PubMed
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.
    • "This evaluation of residual action potential to differentiate the spike trains has been effectively used previously [33]. There is also previous work in [34] that suggested the information was carried by either the firing rate or the firing time of the individual spike response. "
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    • "The architecture of their network consists of three layers including the input layer that comprises excitatory neurons, the extraction layer that comprises both excitatory and inhibitory neurons, and finally the matching layer that comprises excitatory neurons. In their experiments, Shin et al. [2010] demonstrated that raising the number of neurons in the recognition layer to a particular level will notably improve the recognition rate [Shin et al. 2010]. "
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    • "Many spiking models are now proposed to achieve different vision tasks. For instance, a vision system achieving image recognition using spiking neurons [55] has been shown to be robust to rotation and occlusion. "
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