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Multi-view low-rank dictionary learning for image classification
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DOI：10.1016/j.patcog.2015.08.012.png)
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Abstract
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Recently, a multi-view dictionary learning (DL) technique has received much attention. Although some multi-view DL methods have been presented, they suffer from the problem of performance degeneration when large noise exists in multiple views. In this paper, we propose a novel multi-view DL approach named multi-view low-rank DL (MLDL) for image classification. Specifically, inspired by the low-rank matrix recovery theory, we provide a multi-view dictionary low-rank regularization term to solve the noise problem. We further design a structural incoherence constraint for multi-view DL, such that redundancy among dictionaries of different views can be reduced. In addition, to enhance efficiency of the classification procedure, we design a classification scheme for MLDL, which is based on the idea of collaborative representation based classification. We apply MLDL for face recognition, object classification and digit classification tasks. Experimental results demonstrate the effectiveness and efficiency of the proposed approach. (C) 2015 Elsevier Ltd. All rights reserved.
Keywords:
Multi-view dictionary learning
Multi-view dictionary low-rank regularization
Structural incoherence constraint
Collaborative representation based classification
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