Vision & Robotics for Science

Schools of fish, flocks of birds, and herds of sheep exhibit synchronized behaviors, yet the underlying mechanisms remain unclear. To address these open questions about the emergent dynamics of collective behavior, my work aims at quantizing observed behavior to uncover principles of social organization and decision-making. Leveraging recent advances in computer vision — particularly in semantic segmentation and tracking — we develop for challenging real-world scenarios, such as tracking objects over the open ocean using drones, determining their real-world trajectory and speeds. These applications pose novel challenges for the computer vision community while simultaneously advancing the analysis of biological data.

Biology

P. Bideau, D. Pham, M. Hansen, F. Dhellemmes, and J. Krause

Watching Swarm Dynamics from Above: A Framework for Advanced Object Tracking in Drone Videos

Manuscript submitted for publication

paper (short version)

K. Pacher, J. Krause, P. Bartashevich, P. Romanczuk, P. Bideau, D. Pham, A. Burns, D. Deffner, F. Dhellemmes, B. Binder, K. Boswell, F. Galván-Magaña, P. Domenici, and M. Hansen

Evidence for a by-product mutualism in a group hunter depends on prey movement state

Functional Ecology, Aug. 2024
DOI: 10.1111/1365-2435.14638

paper

Psychology

M. Maier, A. Leonhardt, F. Blume, P. Bideau, O. Hellwich, and R. Abdel Rahman

Brain Dynamics of Mental State Attribution During Perception of Social Robot Faces

Social Cognitive and Affective Neuroscience, April 2025
DOI: 10.1093/scan/nsaf027

paper

M. Halawa, F. Blume, P. Bideau, M. Maier, R. Abdel Rahman, and O. Hellwich

Multi-Task Multi-Modal Selfsupervised Learning for Facial Expression Recognition

Proceedings IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), June 2024
DOI: 10.1109/CVPRW63382.2024.00463

paper, code

F. Blume, R. Qu, P. Bideau, M. Maier, R. Abdel Rahman, and Olaf Hellwich

How Do You Perceive My Face? Recognizing Facial Expressions in Multi-Modal Context by Modeling Mental Representations

DAGM German Conference on Pattern Recognition (GCPR), April 2025
DOI: 10.1007/978-3-031-85187-2_2

paper, code

M. Maier, F. Blume, P. Bideau, O. Hellwich, R. Abdel Rahman

Knowledge Augmented Face Perception: Prospects for the Bayesian Brain-Frameworkto Align AI and Human Vision

Consciousness and Cognition, May 2022
DOI: 10.1016/j.concog.2022.103301

paper

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