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：2002
卷号：XXXIV Part 3 B
页码：3-6
出版社：Copernicus Publications
摘要：This work presents a general and formal solution to the problem of fusion of a multi-spectral (MS) image with a higher-resolution panchromatic (P) observation. The method relies on the generalised Laplacian pyramid, which is an over-sampled structure obtained by subtracting from an image its low-pass version. The goal is to selectively performs spatial-frequencies spectrum substitution from an image to another with the constraint of thoroughly retaining the spectral information of the coarser MS data. To this end, a vector injection model has been defined: at each pixel, the detail vector to be added is always parallel to the MS approximation. Furthermore, its components are scaled by factors measuring the ratio of local gains between the MS and P data. Quantitative results are presented and discussed on simulated SPOT 5 data of an urban area ( . . P, ½ . . XS) obtained from the MIVIS airborne imaging spectrom
关键词：Algorithms; Distortion; Fusion; High resolution; Multiresolution; Multispectral; Imagery; Urban
