Robust Object Tracking Via Online Dynamic Spatial Bias Appearance Models

This paper presents a robust object tracking method via a spatial bias appearance model learned dynamically in video. Motivated by the attention shifting among local regions of a human vision system during object tracking, we propose to partition an object into regions with different confidences and track the object using a dynamic spatial bias appearance model (DSBAM) estimated from region confidences. The confidence of a region is estimated to reflect the discriminative power of the region in a feature space, and the probability of occlusion. We propose a novel hierarchical Monte Carlo (HAMC) algorithm to learn region confidences dynamically in every frame. The algorithm consists of two levels of Monte Carlo processes implemented using two particle filtering procedures at each level and can efficiently extract high confidence regions through video frames by exploiting the temporal consistency of region confidences. A dynamic spatial bias map is then generated from the high ...

• Type: Journal
• Year: 2007
• Where: PAMI
• Authors: Datong Chen, Jie Yang
• Keywords: Dynamic Spatial Bias, PAMI 2007, Region Confidence, Spatial Bias Appearance