Improved Additive-Wavelet Image Fusion

被引:81
作者
Kim, Yonghyun [1 ]
Lee, Changno [2 ]
Han, Dongyeob [3 ]
Kim, Yongil [4 ]
Kim, Younsoo [1 ]
机构
[1] Korea Aerosp Res Inst, Satellite Informat Res Inst, Satellite Data Applicat Dept, Taejon 305333, South Korea
[2] Seoul Natl Univ Technol, Sch Civil Engn, Seoul 139743, South Korea
[3] Chonnam Natl Univ, Dept Civil & Environm Engn, Yeosu 550749, South Korea
[4] Seoul Natl Univ, Dept Civil & Environm Engn, Seoul 151744, South Korea
关键词
A trous algorithm; IKONOS; image fusion; panchromatic (pan)-sharpening; QUALITY; RESOLUTION; IHS;
D O I
10.1109/LGRS.2010.2067192
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
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.
引用
收藏
页码:263 / 267
页数:5
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