论文类型：期刊论文
发表刊物：MULTIMEDIA TOOLS AND APPLICATIONS
收录刊物：Scopus、SCIE
卷号：77
期号：13
页面范围：17023-17041
ISSN号：1380-7501
关键字：Image classification; Dictionary learning; Analysis dictionary learning; Synthesis K-SVD
摘要：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.