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：2005
卷号：XXXVI-2/W25
出版社：Copernicus Publications
摘要：SPOT 5 satellite was launched on May, 4th, 2002. It has some new distinguished characteristics, for example that its ephemeris and attitudes on orbit can be accurately measured, recorded and distributed within DIMAP format which is a newly designed format for SPOT 5 imagery. DIMAP's metadata, usually named Metadata.dim, contains plenty of detailed information of imagery acquisition, satellite ephemeris and attitudes, view directions of each CCD and line sample intervals, etc. All of those data make it reach reality to perform image positioning with few GCPs and rigorous satellite physical model. Based on the built rigorous satellite physical model by authors, they carried out image positioning experiments and accuracy assessment with one scene of SPOT HRG image and two scenes of SPOT HRS image, in order to determine the suitability of the built model to few GCPs and the accuracy that SPOT 5 image positioning can achieves. The content in the paper includes two experiments, one is SPOT 5 image positioning accuracy assessment, whose aim is to test SPOT 5 image positioning accuracy basing on the built model, another one is model suitability test whose aim is to test the ability of the model under diverse GCPs and different coordinate systems. Finally some important conclusions are drawn
