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Sensors 2012, 12(5), 5872-5887; doi:10.3390/s120505872
Article

Improved Image Fusion Method Based on NSCT and Accelerated NMF

1
, 2,*  and 1
Received: 5 March 2012; in revised form: 24 April 2012 / Accepted: 25 April 2012 / Published: 7 May 2012
(This article belongs to the Section Physical Sensors)
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Abstract: In order to improve algorithm efficiency and performance, a technique for image fusion based on the Non-subsampled Contourlet Transform (NSCT) domain and an Accelerated Non-negative Matrix Factorization (ANMF)-based algorithm is proposed in this paper. Firstly, the registered source images are decomposed in multi-scale and multi-direction using the NSCT method. Then, the ANMF algorithm is executed on low-frequency sub-images to get the low-pass coefficients. The low frequency fused image can be generated faster in that the update rules for W and H are optimized and less iterations are needed. In addition, the Neighborhood Homogeneous Measurement (NHM) rule is performed on the high-frequency part to achieve the band-pass coefficients. Finally, the ultimate fused image is obtained by integrating all sub-images with the inverse NSCT. The simulated experiments prove that our method indeed promotes performance when compared to PCA, NSCT-based, NMF-based and weighted NMF-based algorithms.
Keywords: image fusion; non-subsampled contourlet transform; nonnegative matrix factorization; neighborhood homogeneous measurement image fusion; non-subsampled contourlet transform; nonnegative matrix factorization; neighborhood homogeneous measurement
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Wang, J.; Lai, S.; Li, M. Improved Image Fusion Method Based on NSCT and Accelerated NMF. Sensors 2012, 12, 5872-5887.

AMA Style

Wang J, Lai S, Li M. Improved Image Fusion Method Based on NSCT and Accelerated NMF. Sensors. 2012; 12(5):5872-5887.

Chicago/Turabian Style

Wang, Juan; Lai, Siyu; Li, Mingdong. 2012. "Improved Image Fusion Method Based on NSCT and Accelerated NMF." Sensors 12, no. 5: 5872-5887.


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