FPGA-Based Real Time, Multichannel Emulated-Digital Retina Model Implementation

The function of the low-level image processing that takes place in the biological retina is to compress only the relevant visual information to a manageable size. The behavior of the layers and different channels of the neuromorphic retina has been successfully modeled by cellular neural/nonlinear n...

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Bibliographic Details
Published in:EURASIP journal on advances in signal processing 2009-01, Vol.2009 (1), Article 749838
Main Authors: Vörösházi, Zsolt, Nagy, Zoltán, Szolgay, Péter
Format: Article
Language:English
Subjects:
CNN Technology for Spatiotemporal Signal Processing
Engineering
Quantum Information Technology
Research Article
Signal,Image and Speech Processing
Spintronics
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Summary:The function of the low-level image processing that takes place in the biological retina is to compress only the relevant visual information to a manageable size. The behavior of the layers and different channels of the neuromorphic retina has been successfully modeled by cellular neural/nonlinear networks (CNNs). In this paper, we present an extended, application-specific emulated-digital CNN-universal machine (UM) architecture to compute the complex dynamic of this mammalian retina in video real time. The proposed emulated-digital implementation of multichannel retina model is compared to the previously developed models from three key aspects, which are processing speed, number of physical cells, and accuracy. Our primary aim was to build up a simple, real-time test environment with camera input and display output in order to mimic the behavior of retina model implementation on emulated digital CNN by using low-cost, moderate-sized field-programmable gate array (FPGA) architectures.
ISSN:1687-6180
1687-6172
1687-6180
DOI:10.1155/2009/749838