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Coherent Selection of Independent Trackers for Real-time Object Tracking

Salma Moujtahid 1 Stefan Duffner 1 Atilla Baskurt 1
1 imagine - Extraction de Caractéristiques et Identification
LIRIS - Laboratoire d'InfoRmatique en Image et Systèmes d'information
Abstract : This paper presents a new method for combining several independent and heterogeneous tracking algorithms for the task of online single-object tracking. The proposed algorithm runs several trackers in parallel, where each of them relies on a different set of complementary low-level features. Only one tracker is selected at a given frame, and the choice is based on a spatio-temporal coherence criterion and normalised confidence estimates. The key idea is that the individual trackers are kept completely independent, which reduces the risk of drift in situations where for example a tracker with an inaccurate or inappropriate appearance model negatively impacts the performance of the others. Moreover, the proposed approach is able to switch between different tracking methods when the scene conditions or the object appearance rapidly change. We experimentally show with a set of Online Adaboost-based trackers that this formulation of multiple trackers improves the tracking results in comparison to more classical combinations of trackers. And we further improve the overall performance and computational efficiency by introducing a selective update step in the tracking framework.
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Submitted on : Tuesday, June 9, 2015 - 11:50:33 AM
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Salma Moujtahid, Stefan Duffner, Atilla Baskurt. Coherent Selection of Independent Trackers for Real-time Object Tracking. International Conference on Computer Vision Theory and Applications (VISAPP), Mar 2015, Berlin, Germany. pp.584--592. ⟨hal-01161859⟩

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