Publication Date:
2018-04-19
Description:
Remote Sensing, Vol. 10, Pages 622: A Framelet-Based Iterative Pan-Sharpening Approach Remote Sensing doi: 10.3390/rs10040622 Authors: Zi-Yao Zhang Ting-Zhu Huang Liang-Jian Deng Jie Huang Xi-Le Zhao Chao-Chao Zheng Pan-sharpening is used to fuse multispectral images and panchromatic images to produce a multispectral image with high spatial resolution. In this paper, we design a new iterative method based on framelet for pan-sharpening. The proposed model takes advantage of the upsampled multispectral image and a linear relation between the panchromatic image and the latent high-resolution multispectral image. Since the sparsity of the pan-sharpened image under a B-spline framelet transform is assumed, we regularize the model by penalizing l 1 norm of a framelet based term. The model is solved by a designed algorithm based on alternating direction method of multipliers (ADMM). For better performance, we propose an iterative strategy to pick up more spectral and spatial details. Experiments on four datasets demonstrate that the proposed method outperforms several existing pan-sharpening methods.
Electronic ISSN:
2072-4292
Topics:
Architecture, Civil Engineering, Surveying
,
Geography
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