Title
Image Fusion by Hierarchical Joint Sparse Representation.
Abstract
Joint sparse representation (JSR) based image fusion, as one of competitive sparse representation based fusion methods, has been widely studied recently. In this kind of methods, image features are represented as sparse coefficients. They are typically calculated with two decomposition algorithms, namely orthogonal matching pursuit and basis pursuit. In both of them, an error tolerance parameter is specified to control the fineness of a fused image. Intuitively, the more detailed an image fineness is, the more micro-information is presented; the more rough it is, the more macro-information is summarized. Therefore, it is reasonable to assume that complementary information exists among the images generated by different error tolerance parameters. Motivated by this, in this paper, we have tried to combine the features in these images and verify the above assumption. Specifically, we have proposed a two-layer hierarchical framework based on JSR. Extensive experiments demonstrate that effectively combining features in images of different fineness does improve the quality of the fused image significantly. The proposed framework outperforms previous methods according to many objective evaluation criteria.
Year
DOI
Venue
2014
10.1007/s12559-013-9235-y
Cognitive Computation
Keywords
Field
DocType
Image fusion,Hierarchical framework,Sparse representation,Orthogonal matching pursuit,Basis pursuit
Matching pursuit,Computer vision,Pattern recognition,Image fusion,Computer science,Feature (computer vision),Error tolerance,Sparse approximation,Basis pursuit,Fusion,Artificial intelligence,Machine learning
Journal
Volume
Issue
ISSN
6
3
1866-9956
Citations 
PageRank 
References 
11
0.50
25
Authors
4
Name
Order
Citations
PageRank
Yao Yao1151.56
Ping Guo260185.05
Xin Xin3587.73
Ziheng Jiang4677.19