1Institute of Aerospace Information and Control, School of Electronic, Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200030
Xuhong Yang, Zhongliang Jing, Gang Liu. Fusion of urban remote image based on multi-characteristics[J]. Chinese Optics Letters, 2006, 4(5): 05275
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A fusion approach is proposed to refine the resolution of urban multi-spectral images using the corresponding high-resolution panchromatic (PAN) images. Firstly, the two images are decomposed by wavelet transformation, and five texture features are extracted from high-frequency detailed sub-images. Then a multi-characteristics fusion rule is used to merge wavelet coefficients from the two images according to the extracted features. Experimental results indicate that, comparing with the non-characteristic methods, the proposed method can efficiently preserve the spectral information while improving the spatial resolution of the urban remote sensing images.