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Improved Additive-Wavelet Image Fusion

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5 Author(s)
Yonghyun Kim ; Satellite Data Applic. Dept., Korea Aerosp. Res. Inst., Daejeon, South Korea ; Changno Lee ; Dongyeob Han ; Yongil Kim
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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 à 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.

Published in:

Geoscience and Remote Sensing Letters, IEEE  (Volume:8 ,  Issue: 2 )

Date of Publication:

March 2011

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