A biologically inspired facilitation mechanism enhances the detection and pursuit of targets of varying contrast

Zahra Bagheri, Steven Wiederman, Benjamin Cazzolato, Steven Grainger, David O'Carroll

Research output: Chapter in Book/Conference paperConference paper

4 Citations (Scopus)

Abstract

Many species of flying insects detect and chase prey or conspecifics within a visually cluttered surround, e.g. for predation, territorial or mating behavior. We modeled such detection and pursuit for small moving targets, and tested it within a closed-loop, virtual reality flight arena. Our model is inspired directly by electrophysiological recordings from 'small target motion detector' (STMD) neurons in the insect brain that are likely to underlie this behavioral task. The front-end uses a variant of a biologically inspired 'elementary' small target motion detector (ESTMD), elaborated to detect targets in natural scenes of both contrast polarities (i.e. both dark and light targets). We also include an additional model for the recently identified physiological 'facilitation' mechanism believed to form the basis for selective attention in insect STMDs, and quantify the improvement this provides for pursuit success and target discriminability over a range of target contrasts.
Original languageEnglish
Title of host publication2014 International Conference on Digital lmage Computing: Techniques and Applications (DlCTA)
EditorsAbdessalam Bouzerdoum
Place of PublicationPiscataway, NJ
PublisherIEEE, Institute of Electrical and Electronics Engineers
ISBN (Print)9781479954094
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event 2014 International Conference on Digital lmage Computing - Wollongong, Australia
Duration: 25 Nov 201427 Nov 2014

Conference

Conference 2014 International Conference on Digital lmage Computing
CountryAustralia
CityWollongong
Period25/11/1427/11/14

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Bagheri, Z., Wiederman, S., Cazzolato, B., Grainger, S., & O'Carroll, D. (2014). A biologically inspired facilitation mechanism enhances the detection and pursuit of targets of varying contrast. In A. Bouzerdoum (Ed.), 2014 International Conference on Digital lmage Computing: Techniques and Applications (DlCTA) Piscataway, NJ: IEEE, Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/DICTA.2014.7008082