Title
Multifocus image fusion based on robust principal component analysis.
Abstract
Multifocus image fusion has emerged as a major topic in computer vision and image processing community since the optical lenses for most widely used imaging devices, such as auto-focus cameras, have a limiting focus range. Only objects at one particular depth will be truly in focus while out-of-focus objects will become blurry. The ability to create a single image where all scene areas appear sharp is desired not only in digital photography but also in various vision-related applications. We propose a novel image fusion scheme for combining two or multiple images with different focus points to generate an all-in-focus image. We formulate the problem of fusing multifocus images as choosing the most significant features from a sparse matrix obtained by a newly developed robust principal component analysis (RPCA) decomposition method to form a composite feature space. The local sparse features that represent salient information of the input images (i.e. sharp regions) are integrated to construct the resulting fused image. Experimental results have demonstrated that it is consistently superior to the other existing state-of-the-art fusion methods in terms of visual and quantitative evaluations. © 2013 Elsevier B.V.
Year
DOI
Venue
2013
10.1016/j.patrec.2013.03.003
Pattern Recognition Letters
Keywords
Field
DocType
Multifocus image fusion,Robust principal component analysis,Sparse features,Low-rank matrix
Computer vision,Digital photography,Feature vector,Pattern recognition,Image fusion,Feature detection (computer vision),Image processing,Robust principal component analysis,Lens (optics),Artificial intelligence,Mathematics,Sparse matrix
Journal
Volume
Issue
ISSN
34
9
0167-8655
Citations 
PageRank 
References 
32
1.06
32
Authors
3
Name
Order
Citations
PageRank
Tao Wan118121.18
Chenchen Zhu2351.44
Zengchang Qin343945.46