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Sensors 2009, 9(7), 5076-5098;

Selective Attention in Multi-Chip Address-Event Systems

Robotics, Brain and Cognitive Sciences Department, Italian Institute of Technology (IIT), via Morego 30, I-16163 Genova, Italy
Institute of Neuroinformatics, University of Zurich and ETH Zurich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
Author to whom correspondence should be addressed.
Received: 7 April 2009 / Revised: 28 May 2009 / Accepted: 23 June 2009 / Published: 26 June 2009
(This article belongs to the Special Issue Wireless Sensor Technologies and Applications)
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Selective attention is the strategy used by biological systems to cope with the inherent limits in their available computational resources, in order to efficiently process sensory information. The same strategy can be used in artificial systems that have to process vast amounts of sensory data with limited resources. In this paper we present a neuromorphic VLSI device, the “Selective Attention Chip” (SAC), which can be used to implement these models in multi-chip address-event systems. We also describe a real-time sensory-motor system, which integrates the SAC with a dynamic vision sensor and a robotic actuator. We present experimental results from each component in the system, and demonstrate how the complete system implements a real-time stimulus-driven selective attention model. View Full-Text
Keywords: analog VLSI; subthreshold; selective attention; multi-chip system; Address- Event Representation (AER); saliency-map; winner-take-all (WTA) analog VLSI; subthreshold; selective attention; multi-chip system; Address- Event Representation (AER); saliency-map; winner-take-all (WTA)

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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Bartolozzi, C.; Indiveri, G. Selective Attention in Multi-Chip Address-Event Systems. Sensors 2009, 9, 5076-5098.

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