Published on Wed Aug 22 2018

Multi-Branch Siamese Networks with Online Selection for Object Tracking

Zhenxi Li, Guillaume-Alexandre Bilodeau, Wassim Bouachir

The proposed Multi-Branch Siamese Tracker employs multiple branches of CNNs pre-trained for different tasks. With our branch selection mechanism, the appropriate CNN branch is selected depending on the tracked object's characteristics.

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Abstract

In this paper, we propose a robust object tracking algorithm based on a branch selection mechanism to choose the most efficient object representations from multi-branch siamese networks. While most deep learning trackers use a single CNN for target representation, the proposed Multi-Branch Siamese Tracker (MBST) employs multiple branches of CNNs pre-trained for different tasks, and used for various target representations in our tracking method. With our branch selection mechanism, the appropriate CNN branch is selected depending on the target characteristics in an online manner. By using the most adequate target representation with respect to the tracked object, our method achieves real-time tracking, while obtaining improved performance compared to standard Siamese network trackers on object tracking benchmarks.

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