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Approaching object detector mouse retina circuit model analysis and implementation on cellular sensor‐processor array
Author(s) -
Zarándy Ákos,
Fülöp Tamás
Publication year - 2012
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.1835
Subject(s) - detector , kinematics , computer science , signal (programming language) , cardinal point , object (grammar) , artificial intelligence , algorithm , physics , optics , telecommunications , classical mechanics , programming language
ABSTRACT Approaching object detector structure has been recently identified in mouse retina, and its neural circuit model has been successfully built. A discrete‐type mathematical model describing the retinal structure has been synthesized and implemented on a biologically motivated focal‐plane mixed‐signal sensor‐processor device. The model responses have been analyzed, and the critical parameters have been identified, and their roles were studied. The model has been validated in real dynamic surround of a robotic arm, where the geometrical and the kinematic parameters of the movements were known. From the mathematical and experimental analysis, it has been concluded that this retinal structure has a capacity to generate a last second warning signal to avoid collisions. Copyright © 2012 John Wiley & Sons, Ltd.