Title
Class-Oriented Discriminative Dictionary Learning for Image Classification
Abstract
Dictionary learning has emerged as a powerful tool for a range of image processing applications and a proper dictionary always plays a key issue to the final achievable performance. In this paper, a class-oriented discriminative dictionary learning (CODDL) method is presented for image classification applications. It takes a comprehensive consideration of multiple optimization objectives, emphasizing class discrimination of both dictionary atoms and representation coefficients. The atoms of the learned dictionary should be grouped into class level sub-dictionaries. Meanwhile, the sparse representation coefficients of an input sample should be concentrated on the sub-dictionary of the class it belongs to. Then, based on the learned class-oriented discriminative dictionary, the structured representation coefficients can thus be used for image classification with a simple and efficient classification scheme. The superior performance of the proposed algorithm is demonstrated through extensive experiments.
Year
DOI
Venue
2020
10.1109/TCSVT.2019.2918852
IEEE Transactions on Circuits and Systems for Video Technology
Keywords
DocType
Volume
Dictionaries,Machine learning,Training,Optimization,Task analysis,Linear programming,Image reconstruction
Journal
30
Issue
ISSN
Citations 
7
1051-8215
0
PageRank 
References 
Authors
0.34
11
3
Name
Order
Citations
PageRank
Jing Ling1151.11
Zhenzhong Chen21244101.41
Feng Wu33635295.09