Bio-inspired analog circuitry model of insect photoreceptor cells

Eng Leng Mah; Russell S.A. Brinkworth; David O'Carroll

doi:10.1117/12.638464

Bio-inspired analog circuitry model of insect photoreceptor cells

Eng Leng Mah, Russell S.A. Brinkworth, David O'Carroll

Research output: Contribution to journal › Conference article › peer-review

6 Citations (Scopus)

Abstract

This paper describes the implementation of a robust adaptive photodetector circuit that mimics the characteristics of insect photoreceptors. The implementation of the photodetector circuit is an elaborated version of the mathematical model initially developed by van Hateren and Snippe. It consists of a linear photodetector, two divisive feedback loops and a static non-linearity stage. The photoreceptor circuit was rigorously tested under both steady-state and dynamic (natural scenes) conditions and the circuit parameters optimized such that the output was highly correlated to results obtained from fly photoreceptors observing an identical stimulus. The results show that this adaptive non-linear photoreceptor circuit is ideally suited to mimic the biological photoreceptors found in insects.

Original language	English
Article number	603613
Journal	Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume	6036
DOIs	https://doi.org/10.1117/12.638464
Publication status	Published - 19 Jan 2006
Externally published	Yes
Event	BioMEMS and Nanotechnology II - Brisbane, Australia Duration: 12 Dec 2005 → 14 Dec 2005

Keywords

Adaptive Photodetector
Artificial Photoreceptor
Bio-inspired Vision
Neuromorphic

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10.1117/12.638464Licence: In Copyright

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title = "Bio-inspired analog circuitry model of insect photoreceptor cells",

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AU - Brinkworth, Russell S.A.

AU - O'Carroll, David

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N2 - This paper describes the implementation of a robust adaptive photodetector circuit that mimics the characteristics of insect photoreceptors. The implementation of the photodetector circuit is an elaborated version of the mathematical model initially developed by van Hateren and Snippe. It consists of a linear photodetector, two divisive feedback loops and a static non-linearity stage. The photoreceptor circuit was rigorously tested under both steady-state and dynamic (natural scenes) conditions and the circuit parameters optimized such that the output was highly correlated to results obtained from fly photoreceptors observing an identical stimulus. The results show that this adaptive non-linear photoreceptor circuit is ideally suited to mimic the biological photoreceptors found in insects.

AB - This paper describes the implementation of a robust adaptive photodetector circuit that mimics the characteristics of insect photoreceptors. The implementation of the photodetector circuit is an elaborated version of the mathematical model initially developed by van Hateren and Snippe. It consists of a linear photodetector, two divisive feedback loops and a static non-linearity stage. The photoreceptor circuit was rigorously tested under both steady-state and dynamic (natural scenes) conditions and the circuit parameters optimized such that the output was highly correlated to results obtained from fly photoreceptors observing an identical stimulus. The results show that this adaptive non-linear photoreceptor circuit is ideally suited to mimic the biological photoreceptors found in insects.

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KW - Artificial Photoreceptor

KW - Bio-inspired Vision

KW - Neuromorphic

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VL - 6036

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T2 - BioMEMS and Nanotechnology II

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Bio-inspired analog circuitry model of insect photoreceptor cells

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