期刊名称:ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN:2194-9042
电子版ISSN:2194-9050
出版年度:2004
卷号:XXXV Part B3
页码:529-534
出版社:Copernicus Publications
摘要:Image fusion deals with the integration of remote sensing images from various sensors, with multi-spectrum and high-spectrum, multi-angle viewing and multi-resolutions, aiming at achieving improved image quality to better support improved image classification, monitoring and etc. The main goal of this paper is to introduce a new approach to fuse panchromatic image and multi-spectral images by complex wavelet. First, the theoretical basis of complex wavelet is described together with its key properties(e.g. approximate shift invariance, good directional selectivity, perfect reconstruction(PR),limited redundancy and efficient order-N computation). Secondly, the new method for fusing remote sensing images based on complex wavelet is proposed. Finally experiment results show that the fusion method based on complex wavelet transform is remarkably better than the fusion method based on classical discrete wavelet transform