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Effect of spatial sampling on pattern noise in insect-based motion detection

Rajesh, Sreeja and Straw, Andrew and O'Carroll, David C. and Abbott, Derek (2005) Effect of spatial sampling on pattern noise in insect-based motion detection. In: Smart Structures, Devices, and Systems II. Proceedings of SPIE. No.5649. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 811-825. ISBN 9780819456090.

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Insects perform highly complicated navigational tasks even though their visual system is relatively simple. The main idea of work in this area is to study the visual system of insects and to incorporate algorithms used by them in electronic circuits to produce low power, computationally simple, highly efficient, robust devices capable of accurate motion detection and velocity estimation. The Reichardt correlator model is one of the earliest and the most prominent biologically inspired models of motion detection developed by Hassentein and Reichardt in 1956. In an attempt to get accurate estimates of yaw velocity using an elaborated Reichardt correlator, we have investigated the effect of pattern noise (deviation of the correlator output resulting from the structure of the visual scene) on the correlator response. We have tested different sampling methods here and it is found that a circular sampled array of elementary motion detectors (EMDs) reduces pattern noise effectively compared to an array of rectangular or randomly selected EMDs for measuring rotational motion.

Item Type:Book Section
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Straw, Andrew0000-0001-8381-0858
Additional Information:© 2005 Society of Photo-Optical Instrumentation Engineers (SPIE). Funding from the US Air force Research Laboratory/Asian Office for Aerospace Research & Development (contract # F62562-01-P-0158), the Sir Ross & Sir Keith Smith Fund and the Australian Research Council is gratefully acknowledged. Andrew D. Straw was supported by a Predoctoral Fellowship from the Howard Hughes Medical Institute.
Funding AgencyGrant Number
Air Force Research Laboratory (AFRL)F62562-01-P-0158
Sir Ross and Sir Keith Smith FundUNSPECIFIED
Australian Research CouncilUNSPECIFIED
Howard Hughes Medical Institute (HHMI)UNSPECIFIED
Subject Keywords:Reichardt correlator, pattern noise, spatial sampling, artificial insect vision
Series Name:Proceedings of SPIE
Issue or Number:5649
Record Number:CaltechAUTHORS:20190221-110530090
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Official Citation:Sreeja Rajesh, Andrew Straw, David C. O'Carroll, and Derek Abbott "Effect of spatial sampling on pattern noise in insect-based motion detection", Proc. SPIE 5649, Smart Structures, Devices, and Systems II, (28 February 2005); doi: 10.1117/12.598178;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:93162
Deposited By: George Porter
Deposited On:22 Feb 2019 16:56
Last Modified:16 Nov 2021 16:55

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