顾及光谱畸变的高分辨率图像融合方法研究

¹ 中国科学院电子学研究所,北京市北四环西路19号,100080;² 中国科学院遥感应用研究所,北京市大屯路3号,100101;³ 中国地质调查局发展研究中心,北京市学院路40号,100083

基金项目: 科技奥运专项基金资助项目(2002BA904B07)

详细信息

A Fusion Method of High-resolution Images Considering Spectral Distortions

¹ Institute of Electronics,Chinese Academy of Sciences,19 West Beisihuan Road,Beijing 100080,China;² Institute of Remote Sensing Applications,Chinese Academy of Sciences,3 Datun Road,Beijing 100101,China;³ Development and Research Center of China Geological Survey,40 Xueyuan Road, Beijing 100083,China

Funds: 科技奥运专项基金资助项目(2002BA904B07)

摘要: 使用高分辨率遥感图像进行像素级图像融合,在图像小波分解时,通过计算不同分解层数下得到的融合图像的熵来决定图像的小波分解层数;在图像小波重建时,引入局部相关系数,并在不同的分解层上设置不同的阈值进行有选择的高频系数替换,实现图像的像素级融合。并使用Quickbird全波段与多光谱数据进行试验,得到了分辨率高、光谱畸变微小的彩色融合图像。
- 高分辨率 /
- 融合 /
- 小波 /
- 局部相关系数
Abstract: The local correlation coefficient is introduced and the different thresholds at different levels of wavelet decomposition are set up, in order to reduce the spectral distortions of the fusion image,fuse multi-spectral images with a panchromatic image of Quickbird data by the proposed method.The result demonstrates that the proposed method is a good fusion method to increase information,improve resolution and reduce spectral distortions.
- high-resolution /
- fusion /
- wavelet /
- local correlation coefficient