Tracking-by-Trackers with a Distilled and Reinforced Model
Matteo Dunnhofer (University of Udine)*, Niki Martinel (University of Udine), CHRISTIAN MICHELONI (University of Udine, Italy)
Keywords: Motion and Tracking
                Abstract:
                Visual  object tracking was generally tackled by reasoning independently on fast  processing algorithms, accurate online adaptation methods, and fusion of  trackers. In this paper, we unify such goals by proposing a novel tracking  methodology that takes advantage of other visual trackers, offline and  online. A compact student model is trained via the marriage of knowledge  distillation and reinforcement learning. The first allows to transfer and  compress tracking knowledge of other trackers. The second enables the  learning of evaluation measures which are then exploited online. After  learning, the student can be ultimately used to build (i) a very fast  single-shot tracker, (ii) a tracker with a simple and effective online  adaptation mechanism, (iii) a tracker that performs fusion of other trackers.  Extensive validation shows that the proposed algorithms compete with  real-time state-of-the-art trackers.