| IKONOS影像的最佳融合技术研究 |
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| 引用本文： | 宋刚贤,潘剑君,朱文娟.IKONOS影像的最佳融合技术研究[J].测绘科学,2009,34(2). |
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| 作者姓名： | 宋刚贤 潘剑君 朱文娟 |
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| 作者单位： | 1. 南京农业大学公共管理学院,南京,210095
2. 南京农业大学资源与环境学院,南京,210095 |
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| 摘 要： | 在研究遥感数字影像融合算法和原理的基础上,选择高空间分辨率的IKONOS遥感影像作为数据源,采用能够以全波段融合的主成分变换、乘积变换、Gram-schmidt变换和小波变换四种融合方法进行比较研究,并通过主观和客观两方面对融合效果进行评价。结果表明,Gram-schmidt变换法融合的IKONOS影像光谱质量最好,同时也较高程度地保持了高几何分辨率的空间信息,是权衡光谱信息和空间信息综合效应最佳的一种方法。
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| 关 键 词： | 遥感影像 IKONOS 融合 |
Study on optimum fusion technology of IKONOS image |
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| SONG Gang-xian,PAN Jian-jun,ZHU Wen-juan.Study on optimum fusion technology of IKONOS image[J].Science of Surveying and Mapping,2009,34(2). |
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| Authors: | SONG Gang-xian PAN Jian-jun ZHU Wen-juan |
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| Abstract: | Many applications in remote sensing require fusion of low-resolution multi-spectral of hyper-spectral images with high-resolution panchromatic images to identify map materials at high resolution. A number of methods are currently used to merge images. This paper compared the performances of four fusion approaches (PCA, Product, Gram-schmidt and wavelet transformation) to each other by means of qualitative and quantitative analysis. The results showed that Gram-schmidt was the optimum approach among the four techniques for it preserves the highest spectral quality and spatial resolution information. |
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| Keywords: | IKONOS |
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