| DCT域遥感影像融合算法 |
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| 引用本文： | 楚恒,王汝言,朱维乐.DCT域遥感影像融合算法[J].测绘学报,2008,37(1):70-76. |
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| 作者姓名： | 楚恒 王汝言 朱维乐 |
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| 作者单位： | 电子科技大学电子工程学院,四川成都,610054;重庆邮电大学通信与信息工程学院,重庆,400065 |
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| 摘 要： | 提出一种基于离散余弦变换(Discrete Cosine Transform,DCT)与IHS变换的多光谱与全色遥感影像融合方法及其改进算法。本文方法依据DCT系数的特点在DCT域进行遥感影像融合,适合压缩格式的遥感影像快速融合。目视效果与客观评价表明,相比常用遥感影像融合方法,本文方法能在提高空间分辨率与保持光谱特性之间得到更好的折衷。
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| 关 键 词： | 图像融合 离散余弦变换 小波变换 IHS变换 压缩域 |
| 文章编号： | 1001-1595（2008）01-0070-07 |
| 收稿时间： | 2006-11-23 |
| 修稿时间： | 2007-09-21 |
Remote Sensing Image Fusion Algorithm in the DCT Domain |
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| CHU Heng,WANG Ru-yan,ZHU Wei-le.Remote Sensing Image Fusion Algorithm in the DCT Domain[J].Acta Geodaetica et Cartographica Sinica,2008,37(1):70-76. |
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| Authors: | CHU Heng WANG Ru-yan ZHU Wei-le |
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| Abstract: | A multispectral and panchromatic image fusion algorithm using Discrete Cosine Transform(DCT) and IHS transform and its modified approach are proposed. The proposed approaches can be performed in the DCT compression domain directly according to the DCT coefficient features and are suitable for fast image fusion in the compression domain. The visual effects and objective evaluations show that the proposed algorithms can obtain the better tradeoff between improving the spatial resolution and preserving the spectral characteristics, compared with the conventional remote sensing image fusion methods. |
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| Keywords: | image fusion discrete cosine transform wavelet transform IHS transform compression domain |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
