3D trajectory estimation of simulated fruit flies

Authors:
Junli Tao;Benjamin Risse;Xiaoyi Jiang;Reinhard Klette
Affiliations:
University of Auckland, Auckland, New Zealand;University of Münster, Münster, Germany;University of Münster, Münster, Germany;University of Auckland, Auckland, New Zealand
Venue:
Proceedings of the 27th Conference on Image and Vision Computing New Zealand
Year:
2012

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Abstract

This paper addresses 3D trajectory estimation of simulated fruit flies assuming a time-synchronized and calibrated 3-camera system. Because the objects have almost the same appearance, both stereo matching and temporal tracking are challenging. In this paper, a third camera is introduced to verify matching and tracking results based on epipolar geometry and projection consistency. This reduces the ambiguity, fetches missed matches and corrects incorrect matches during tracking. Since matching and tracking affect each other, we process both in interaction instead of separately. Unscented Kalman filters are adopted to track objects by modelling motion information, as no distinguishing appearance features are available.