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A novel multiscale transform decomposition based multi-focus image fusion framework
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DOI：10.1007/s11042-020-10462-y.png)
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摘要
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In this work, we propose a novel multiscale transform decomposition model for multi-focus image fusion to get a better fused performance. The motivation of the proposed fusion framework is to make full use of the decomposition characteristics of multiscale transform. The nonsubsampled contourlet transform (NSCT) is firstly used to decompose the source multi-focus images into low-frequency (LF) and several high-frequency (HF) bands to separate out the two basic characteristics of source images, i.e., principal information and edge details. The common average and max-absolute fusion rules are performed on low- and high-frequency components, respectively, and a basic fusion image is generated. Then the difference images between the basic fused image and the source images are calculated, and the energy of the gradient (EOG) of difference images are utilized to refine the basic fused image by integrating average filter and median filter. Visual and quantitative using fusion metrics like VIFF, Q(S), MI, Q(AB/F), SD, Q(PC) and running time comparisons to state-of-the-art algorithms demonstrate the out-performance of the proposed fusion technique.
Keyword:
Multiscale transform
Multi-focus image fusion
NSCT
Difference image
Energy of the gradient
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3
论文数:
2.0W
被引数:
3.2W
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