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Synthesis K-SVD based analysis dictionary learning for pattern classification

delete2017-10-17
delete22
PRE
AI
W
Wang Qian-yu
郭艳卿 (Yanqing Guo) *
J
Jun Guo
X
Xiangwei Kong
DOI:10.1007/s11042-017-5269-6delete
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Abstract

Abstract

En 中文
In the fields of computer vision and pattern recognition, dictionary learning techniques have been widely applied. In classification tasks, synthesis dictionary learning is usually time-consuming during the classification stage because of the sparse reconstruction procedure. Analysis dictionary learning, which is another research line, is more favorable due to its flexible representative ability and low classification complexity. In this paper, we propose a novel discriminative analysis dictionary learning method to enhance classification performance. Particularly, we incorporate a linear classifier and the supervised information into the traditional analysis dictionary learning framework by adding a discrimination error term. A synthesis K-SVD based algorithm which can effectively constrain the sparsity is presented to solve the proposed model. Extensive comparison experiments on benchmark databases validate the satisfactory performance of our method.
Keywords:
Image classification
Dictionary learning
Analysis dictionary learning
Synthesis K-SVD
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Journal

Multimedia Tools and Applications cover
Multimedia Tools and Applications
IF:
3
Papers:
1.9W
Citations:
3.2W

Organization

T
tsinghua university
Scholars:
11.8W
Papers: 10.0W
Citations: 137
D
Dalian University of Technology
Scholars:
5.9W
Papers: 4.4W
Citations: 5.5W