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How do field of view and resolution affect the information content of panoramic scenes for visual navigation? A computational investigation

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posted on 2023-06-15, 20:47 authored by Antoine Wystrach, Alex Dewar, Andy PhilippidesAndy Philippides, Paul GrahamPaul Graham
The visual systems of animals have to provide information to guide behaviour and the informational requirements of an animal’s behavioural repertoire are often reflected in its sensory system. For insects, this is often evident in the optical array of the compound eye. One behaviour that insects share with many animals is the use of learnt visual information for navigation. As ants are expert visual navigators it may be that their vision is optimised for navigation. Here we take a computational approach in asking how the details of the optical array influence the informational content of scenes used in simple view matching strategies for orientation. We find that robust orientation is best achieved with low-resolution visual information and a large field of view, similar to the optical properties seen for many ant species. A lower resolution allows for a trade-off between specificity and generalisation for stored views. Additionally, our simulations show that orientation performance increases if different portions of the visual field are considered as discrete visual sensors, each giving an independent directional estimate. This suggests that ants might benefit by processing information from their two eyes independently.

History

Publication status

  • Published

File Version

  • Published version

Journal

Journal of Comparative Physiology A

ISSN

0340-7594

Publisher

Springer Verlag

Issue

2

Volume

202

Page range

87-95

Department affiliated with

  • Evolution, Behaviour and Environment Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2016-01-22

First Open Access (FOA) Date

2016-01-22

First Compliant Deposit (FCD) Date

2016-01-22

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