ALOS全色与多光谱影像融合方法的比较研究  

Image Fusion Comparison of ALOS Panchromatic and Multi Spectral

作　　者：毛迎丹[1] 赵红[1] 

机构地区：[1]浙江水利水电学院测绘与市政工程学院,浙江杭州310018

出　　处：《浙江水利水电专科学校学报》2014年第1期69-73,共5页Journal of Zhejiang Water Conservancy and Hydropower College

摘　　要：以浙江省德清县ALOS影像为基础数据,探讨了利用乘积法、高通滤波法、小波变换、HIS变换、Brovey变换、PCA变换、Gram-Schmidt变换等七种影像融合方法,对ALOS全色与多光谱影像进行融合,对各方法的融合结果进行了定性和定量分析.实验结果表明,Gram-Schmidt变换在保持多光谱影像光谱信息的同时,显著提高了融合影像的空间分辨率,是最适合ALOS全色与多光谱影像的融合方法,为ALOS影像应用提供了参考.Taking ALOS image of Deqing County as the foundation data,seven kinds of image fusion methods are discussed,such as product method,high pass filtering,wavelet transform,HIS transform,Brovey transform,PCA transform, and Gram-Schmidt transform. The ALOS panchromatic and multi spectral image is fused,and the qualitative and quantitative analysis on fusion results is obtained. The experimental results show that Gram-Schmidt transform keeps the multi spectral image spectrum information,and at the same time,it also significantly improves the spatial resolution of the image fusion,which is proved to be the most suitable fusion method of ALOS panchromatic and multi spectral image,providing reference for the application of ALOS image.

关 键 词：ALOS 影像融合 GRAM-SCHMIDT 

分 类 号：TH744[机械工程—光学工程]