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3D Flight Path Tracking of Butterflies by Image Processing to investigate movement in response to condition and environment Oliver Mitesser, Ádám Kőrösi,

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Presentation on theme: "3D Flight Path Tracking of Butterflies by Image Processing to investigate movement in response to condition and environment Oliver Mitesser, Ádám Kőrösi,"— Presentation transcript:

1 3D Flight Path Tracking of Butterflies by Image Processing to investigate movement in response to condition and environment Oliver Mitesser, Ádám Kőrösi, Thomas Hovestadt, Peter Möhringer Gunther Bohn, University of Applied Sciences Würzburg/Schweinfurt Germany Bio Zentrum der Universität Würzburg XXXII. International Conference Science in Practice, Osijek 2014 1

2 The problem XXXII. International Conference Science in Practice, Osijek 2014 2 “there is no information available on navigation abilities of butterflies in small-scale foraging movement and whether and how they might use spatial information Bio-Zentrum University of Würzburg

3 I. Introduction XXXII. International Conference Science in Practice, Osijek 2014 3 Goal of the project: ► Make behavioural experiments on butterflies ► Explore sensory abilities ► Identify role of internal status like hunger-level, egg-load etc ► Explore memory and learning effects ► Butterflies either memorize or mark host plants visited ► Explore inference and anticipation

4 II. Flight cage and cameras: XXXII. International Conference Science in Practice, Osijek 2014 4 ► Near natural environment in a flight cage ► Cameras record movements of the butterflies

5 XXXII. International Conference Science in Practice, Osijek 2014 5 The test flight cage (8m x 8m x 3m)

6 XXXII. International Conference Science in Practice, Osijek 2014 6 S3D-HD cameras mounted on top of the flight cage

7 XXXII. International Conference Science in Practice, Osijek 2014 7 S3D-HD cameras mounted on top of the flight cage

8 The butterfly to be observed Polyommatus Icarus/Common Blue/Hauhechelbläuling/Közönséges Boglárka XXXII. International Conference Science in Practice, Osijek 2014 8 male female

9 XXXII. International Conference Science in Practice, Osijek 2014 9 butterflies in transport cages

10 XXXII. International Conference Science in Practice, Osijek 2014 10 Markers and artificial flowers in the flight cage

11 XXXII. International Conference Science in Practice, Osijek 2014 11

12 III. Image and data processing XXXII. International Conference Science in Practice, Osijek 2014 12 ► Image processing detects butterflies and determines flight trajectories ► Statistics give insight into the behaviour of the butterflies ► Identify decision rules ► Create and improve movement model

13 S3D camera XXXII. International Conference Science in Practice, Osijek 2014 13 Disparity related to position of object screen position object behind the screen object in front of screen

14 XXXII. International Conference Science in Practice, Osijek 2014 14 Disparity in front and behind the screen

15 XXXII. International Conference Science in Practice, Osijek 2014 15 Result of a 3D analysis OMNITEC OTR 1001 TV test system

16 IV. First results XXXII. International Conference Science in Practice, Osijek 2014 16 Example video

17 XXXII. International Conference Science in Practice, Osijek 2014 17 Example of data management and processing part of x-y trajectory

18 V. Conclusion XXXII. International Conference Science in Practice, Osijek 2014 18 Already promising first results: ► Test flight cage and consumer cameras show viability ► Image processing is still to be developed ► Explore memory and learning effects (in the future) ► Explore inference and anticipation (in the future) ► Define and improve movement model (in the future) ► Compare model to measured trajectories (in the future)

19 XXXII. International Conference Science in Practice, Osijek 2014 19 Thanks for paying attention Questions?


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