Abstract
An efficient and effective algorithm which online exploits informative features for visual tracking is presented. First, a high-dimensional multi-scale spatio-colour image feature vector is developed, which takes into account both appearance and spatial layout information; secondly, this feature vector is randomly projected onto a low-dimensional feature space, where its projections preserve intrinsic information of the high-dimensional feature vector but effectively avoid the curse of dimensionality; and finally, an online feature selection technique to design an adaptive appearance model is proposed, which explores the most informative features from the projections via maximising entropy energy. Experiments on extensive challenging sequences demonstrate the superiority of the proposed method over some state-of-the-art algorithms.
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