Wei, Qi and Dobigeon, Nicolas and Tourneret, Jean-Yves Fast Fusion of Multi-Band Images Based on Solving a Sylvester Equation. (2015) IEEE Transactions on Image Processing, 24 (11). 4109-4121. ISSN 1057-7149
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(Document in English)
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Official URL: http://dx.doi.org/10.1109/TIP.2015.2458572
Abstract
This paper proposes a fast multi-band image fusion algorithm, which combines a high-spatial low-spectral resolution image and a low-spatial high-spectral resolution image. The well admitted forward model is explored to form the likelihoods of the observations. Maximizing the likelihoods leads to solving a Sylvester equation. By exploiting the properties of the circulant and downsampling matrices associated with the fusion problem, a closed-form solution for the corresponding Sylvester equation is obtained explicitly, getting rid of any iterative update step. Coupled with the alternating direction method of multipliers and the block coordinate descent method, the proposed algorithm can be easily generalized to incorporate prior information for the fusion problem, allowing a Bayesian estimator. Simulation results show that the proposed algorithm achieves the same performance as the existing algorithms with the advantage of significantly decreasing the computational complexity of these algorithms.
Item Type: | Article |
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Additional Information: | Thanks to IEEE editor. The definitive version is available at http://ieeexplore.ieee.org The original PDF of the article can be found at IEEE website : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7163298 |
HAL Id: | hal-01187314 |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE) Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE) |
Laboratory name: | |
Funders: | Chinese Scholarship Council - Hypanema |
Statistics: | download |
Deposited On: | 26 Aug 2015 13:21 |
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