遥感图像融合方法研究

Study for fusion method of remote sensing image

为了使融合图像在高空间分辨率的基础上较好地保留光谱信息,研究了高分辨率图像和多光谱图像中的高频信息的关系;在基于小波变换的图像融合方法中引入ISM模型(Inter-Band Structure Model),改进了原有的融合方法;提出了基于ISM模型与小波变换(Wavelet Transform)(简称I-W)的图像融合方法;通过与HIS方法及PCA方法进行了实验对比,结果证明:文中所提出的方法能较好地保留图像的空间和光谱信息。

In order to reserve spectrum information better on the base of high spatial resolution in the fusion image,the relation- ship for the information of high frequency between the high spatial resolution image and the multispeetral image was studied;ISM （Inter-Band Structure Model） is introduced to the method of image fusion based on wavelet transform,the quondam method of fusion was improved;The method of image fusion based on ISM model and wavelet transform（shortened form：l-W） was proposed; After the contradistinctive experiments among HIS method,PCA method and the method proposed in this paper,the spatial infor- mation and spectrum information of the image can reserve better by the method proposed in this paper.