Online adaptive complementation tracker

Abstract

Abstract Correlation filter-based trackers have recently shown excellent performance in terms of motion blur and illumination changes, but they are notoriously sensitive to deformation. It has been demonstrated that the combination of the correlation filter-based tracker and the color histogram-based tracker can alleviate the deformation and keep advantages of the correlation filter-based tracker. However, the most existing complementary tracking algorithms, which use fixed complementary weights, limit the performance of every sub tracker. This paper introduces an adaptive complementary tracker by online learning dynamic complementary weights. The strategy enables inappropriate sub tracker to be down-weighted while increasing the impact of suitable one. We jointly learn the sub trackers and their reliability weights by regression analysis of the corresponding historical tracking results. The robustness of the model also can be improved by training each sub tracker with the result of historical tracking. Finally, both qualitative and quantitative evaluations demonstrate that our tracker achieves the state-of-the-art results in a wide range of tracking scenarios.

Keywords

• Correlation filter
• Online learning
• Visual tracking
• Complementary tracker