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- W2134086176 abstract "For IKONOS imagery, both multi-spectral and panchromatic data are provided with different spatial resolutions. In order to produce multi-spectral images with high spatial resolution, a number of panchromatic sharpening methods have been developed. However, the classical methods such as IHS, PCA and Brovey transform often introduce severe color distortion due to injecting undesired low-pass component of panchromatic observation into the fused multi-spectral images. Recent methods employing the discrete wavelet transform (DWT) or the undecimated DWT preserve good spectral information and prevent adding low-pass components. However, it is difficult to process a large volume of data due to memory requirement and computational cost. The high-pass filtering, Laplacian pyramid, and high-pass modulation (HPM) methods provide good performance with a few spectral distortion and low computational complexity. In this paper, we present a fast and general panchromatic sharpening method for combining low-resolution multi-spectral images with a high-resolution panchromatic image. Experimental results demonstrate that the proposed method produces high-quality fused image and outperforms existing panchromatic sharpening methods in terms of objective quality measures such as UIQI, Q4, RASE and ERGAS." @default.
- W2134086176 created "2016-06-24" @default.
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- W2134086176 date "2008-01-01" @default.
- W2134086176 modified "2023-09-27" @default.
- W2134086176 title "Fast Panchromatic Sharpening for High-Resolution Multi-Spectral Images" @default.
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- W2134086176 doi "https://doi.org/10.1109/igarss.2008.4780031" @default.
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