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Spatial-Temporal Context-Aware Tracking
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DOI：10.1109/LSP.2019.2895962.png)
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Abstract
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Discriminative correlation filters (DCFs) have recently achieved competitive performance in visual tracking benchmarks. However, most of the existing DCF trackers only consider the spatial features of the target and could hardly benefit from the inter-frame and historical information, which may degrade the tracking performance when occlusion and deformation occurs. To tackle the above-mentioned issues, in this letter, by introducing the temporal constrain into the DCF tracker, we advocate our spatial-temporal context-aware tracker. Through jointly modeling the spatial context and historical target information, our tracker could not only adapt the appearance change but also maintain a relatively stable filter due to the small target variation between inter-frames. Furthermore, we show that the proposed objective formula could he directly solved using the Alternating Direction Method of Multipliers (ADMM) technique with low computational cost. Experiments on the large-scale benchmark demonstrate that the proposed trackers perform favorably against other state-of-the-art methods.
Keywords:
Visual tracking
correlation filter
spatial-temporal constrain
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