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Improved Additive-Wavelet Image Fusion
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DOI：10.1109/LGRS.2010.2067192.png)
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摘要
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Effective image-fusion methods inject the necessary geometric information and preserve the radiometric information. To preserve the radiometric information, the injected high frequency of a panchromatic (pan) image must follow the frequency of the multispectral (MS) image. In this letter, an improved additive-wavelet (AW) fusion method is presented using the a trous algorithm. The proposed method does not decompose the MS image; thus, it preserves the radiometric information of the MS image and can inject high frequency following the frequency of the MS image using a low-resolution pan image. Experimental results obtained using IKONOS data indicate that the proposed method produces superior-quality images compared with the AW-luminance proportional method in a quantitative analysis.
Keyword:
A trous algorithm
IKONOS
image fusion
panchromatic (pan)-sharpening
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16.4
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5.1K
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