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论文类型：会议论文

发表时间：2011-09-11

收录刊物：EI、CPCI-S、Scopus

页面范围：2077-2080

关键字：NMF; IOPNMF; incremental learning; part-based representations; visual tracking

摘要：In this paper, we propose an incremental orthogonal projective non-negative matrix factorization algorithm (IOPNMF), which aims to learn a parts-based subspace that reveals dynamic data streams. There exist two main contributions. Firstly, our proposed algorithm can learn parts-based representations in an online fashion. Secondly, by using projection and orthogonality constrains, our IOPNMF algorithm can guarantee to learn a linear parts-based subspace. To demonstrate the effectiveness of our method, we conduct two kinds of experiments, incremental learning parts-based components on facial database and visual tracking on several challenging video clips. The experimental results show that our IOPNMF algorithm learns parts-based representations successfully.