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Effects of compressive nonlinearity on insect-based motion detection

Rajesh, Sreeja and Straw, Andrew and O'Carroll, David and Abbott, Derek (2005) Effects of compressive nonlinearity on 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. 798-810. ISBN 9780819456090.

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Motion detection and velocity estimation systems based on the study of insects tries to emulate the extraordinary visual system of insects with the aim of coming up with low power, computationally simple, highly efficient and robust devices. The Reichardt correlator model is one of the earliest and the most prominent models of motion detection based on insect vision. In this paper we try to extend the Reichardt correlator model to include an additional non-linearity which has been seen to be present in the fly visual system and we study its effect on the contrast dependance of the response and also try to understand its influence on pattern noise. Experiments are carried out by adding this compressive non-linearity at different positions in the model as has been postulated by previous works and comparison of the physiological data with modelling results is done.

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, contrast saturation, artificial insect vision
Series Name:Proceedings of SPIE
Issue or Number:5649
Record Number:CaltechAUTHORS:20190221-110529986
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Official Citation:Sreeja Rajesh, Andrew Straw, David C. O'Carroll, Derek Abbott, "Effects of compressive nonlinearity on insect-based motion detection," Proc. SPIE 5649, Smart Structures, Devices, and Systems II, (28 February 2005); doi: 10.1117/12.598177
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:93161
Deposited By: George Porter
Deposited On:22 Feb 2019 18:20
Last Modified:16 Nov 2021 16:55

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