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遥感技术与应用  2011, Vol. 26 Issue (3): 328-333    DOI: 10.11873/j.issn.1004-0323.2011.3.328
图像与数据处理     
基于小波低频分量微调的IHS变换融合法及其应用
孙小丹
(福州职业技术学院,福建 福州350108)
An IHS Transform Fusion Method based on Adjustment to Wavelet Low-frequency Component and Its Application
SUN Xiao-dan
(Fuzhou Institute of Technology,Fuzhou 350108,China)
 全文: PDF(3624 KB)  
摘要:

针对IHS变换融合法和小波变换融合法存在的弊端,结合这两种方法,提出了一种基于小波低频分量微调的IHS变换融合法,并通过IKONOS和QuickBird影像数据,验证了新方法的可行性和优越性。新融合法首先利用IHS变换技术提取真彩色影像的亮度分量;接着,为了提高融合影像的光谱保真度,采用小波变换技术,联合亮度分量和全色影像数据,生成更为合理的新亮度分量;同时提出了小波低频分量微调环节,并利用该环节进一步改善了融合影像的高频信息融入效果;最后,执行IHS逆变换,获得真彩色融合影像。研究表明:新融合法兼具IHS变换融合法和小波变换融合法的优势,融合结果的质量得到较大程度提高。

关键词: 影像融合IHS变换小波变换小波低频分量微调    
Abstract:

Aim at the defects of IHS (Intensity-hue-saturation) and wavelet transform fusion methods,an IHS transform fusion method based on the adjustment to wavelet low-frequency component is proposed by uniting the two methods,feasibility and superiority of the proposed method are verified through IKONOS and QuickBird images.Firstly,IHS transform technology is used to extract intensity from the true color image;following,in order to improve spectral fidelity of the fused image,combining intensity with Pan image,more reasonable intensity is produced by using wavelet transform technology;meanwhile,an adjustment to wavelet low\|frequency component is proposed and used to make high spatial frequency information gain of fused image better;finally,the true color fused image is obtained through IHS inverse transform.The study shows that the proposed method has the advantages of IHS and wavelet,the quality of its fused result is significantly improved.

Key words: Image fusion    IHS transform    Wavelet transform    Adjustment to wavelet low-frequency component
收稿日期: 2011-01-13 出版日期: 2013-01-23
:  TP751.1  
基金资助:

福建省自然科学基金项目 (2010J0515),福建省教育厅项目(JA10298和JA09194)。

作者简介: 孙小丹(1977-),女,福建福州人,讲师,博士,主要从事遥感图像处理与分析方法的研究。 Email:sxdan@yahoo.cn。
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引用本文:

孙小丹. 基于小波低频分量微调的IHS变换融合法及其应用[J]. 遥感技术与应用, 2011, 26(3): 328-333.

SUN Xiao-dan. An IHS Transform Fusion Method based on Adjustment to Wavelet Low-frequency Component and Its Application. Remote Sensing Technology and Application, 2011, 26(3): 328-333.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2011.3.328        http://www.rsta.ac.cn/CN/Y2011/V26/I3/328

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