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  • 标题:Processing of IRS-lC image blocks
  • 本地全文:下载
  • 作者:R. Ramachandran
  • 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:1998
  • 卷号:XXXII Part 1
  • 页码:272-276
  • 出版社:Copernicus Publications
  • 摘要:This paper describes a method for processing the images acquired by the 3 CCD arrays of the PAN camera of IRS-1C together. A PAN full scene which consists of 9 subscenes each is of dimension 23.5 km x 23.5 km can beadjusted simultaneously with a single GCP to establish relationship with the ground co-ordinate system. Thisblock extension of individual strip formations is practical because the bias angles and the internal geometry ofthe three detectors are known; The model describes the orbit in terms of orbital parameters with constraints andattitude in terms of higher order polynomials and relate object space to image space with collinearity equations.Two tests were conducted to verify the accuracy and consistency of the model. An average rms error of 10.5m inlatitude direction and 11.3m in longitude direction was obtained with a single surveyed GCP used for modelling.The results of the tests show that the triangulation of IRS-lC PAN full scenes is an effective means of reducingthe number of ground control points required to permit the precise determination of ground co-ordinates
  • 关键词:IRS-lC PAN; Orbit attitude modelling; Collinearity equations;relative focal length; weight matrices
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