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 B4
页码：939-944
出版社：Copernicus Publications
摘要：An automatic process for relative registering and merging the panchromatic and multispectral images of SPOT5 is presented. The automated hierarchical local registration process makes use of feature information to select tie points from both images. The tie points are then used to refine the sensor model of the multispectral image by method of least squares solution. Both panchromatic and multispectral images are then orthorectified to a geo-referenced coordinate system using the available one kilometre gridded Digital Elevation Models (GLOBE or SRTM DEM). The merged high resolution colour imagery is then obtained by multiplying each spectral bands with a sharpening factor computed from the intensity values of the orthorectified panchromatic image and the corresponding pixels of the orthorectified multispectral images
关键词：Multispectral; Registration; Correlation; Multiresolution; Orthorectification; SP OT; Sensor Model
