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Bertrand, Olivier: Route navigation inspired by foraging insects: following and finding a route again. 2017
Inhalt
Acknowledgements
Abstract
Zusammenfassung
Introduction
Introduction
Route navigation
Thesis outline
Overview of navigation
Navigation
A fourfold problem
What characteristics can be detected at this place?
How do I recognise the characteristics of one place?
Where is (are) the other relevant place(s) relative to me?
How do I get to the other place(s) from here?
Hierarchy of navigational strategies
Searching
Direction following
Aiming
Guidance
State recognition-triggered response
Topological navigation
Metric navigation
Insect navigation
state of the insect
What characteristics can be detected at a place?
How does an insect recognise a place?
Where is (are) the other relevant place(s) relative to the insect?
How does an insect get to the other place(s) from here?
Avoiding collision leads to common routes
Abstract
Author Summary
Introduction
Results
Optic flow and relative nearness
Collision avoidance with geometrical optic flow
CAD and CAN from EMD
Collision avoidance with EMD
Collision avoidance with a goal direction
Route similarity in cluttered environment
Discussion
Changes in intersaccadic translation direction
Nearness from measured Optic flow
Goal-directed collision avoidance and route following
Materials and Methods
The simulation environment
Visual system and motion detection
From EMD responses to nearness estimates
Nearness and collision avoidance
Cluster of trajectories and route similarities
Supporting Information
Optic flow and nearness
Performance of the algorithm in cluttered environments
Supporting figures
S1 Video
S2 Video
S3 Video
How should I find my route again?
Abstract
Introduction
Results
searching time and displacement
When is a search strategy the best?
Probability of finding the route: which route?
Discussion
Materials and Methods
Graph representation of cluttered environments
Route and route type
Search and searching strategies
Procedure
Supporting Information
How detailed a route should be memorized?
Abstract
Introduction
Results
Finding sparsely and fully memorized routes
What to memorize?
The minimal number of locations memorized
Discussion
Materials and Methods
Graph representation of cluttered environments
Route and route type
Search and searching strategies
Procedure
Supporting Information
Concluding remarks
Route navigation: strategies and formalism
Place recognition-triggered response
Familiarity response
Global-local response
Strategies used by insects, and outlook
Afterthought
Glossary
Bibliography