A Unified Approach to Parametric Geocoding and Atmospheric/topographic Correction for Wide Fov Airborne Imagery Part 1 : Parametric Ortho-rectification Process
نویسندگان
چکیده
A combined geometric and radiometric processing chain for hyperspectral data is presented. This paper describes the ortho-rectification solution for the geometric part of the whole problem. A parametric geocoding approach (PARGE) has been chosen. The geometrical model strictly considers all navigational parameters engaging a forward transformation methodology. For the implementation, a number of auxiliary data calibration and tuning possibilities are shown together with the work flow of the currently applied processor. Results of the procedure for HyMap and AVIRIS hyperspectral imagery are analyzed with respect to their absolute accuracy and coregistration errors. The geocoding procedure will be used in standard preprocessing chains in combination with the atmospheric correction procedure ATCOR4 for current and future hyperspectral instruments.
منابع مشابه
Geo-atmospheric processing of airborne imaging spectrometry data Part 2: atmospheric / topographic correction
A method for the radiometric correction of wide field-of-view airborne imagery has been developed that accounts for the angular dependence of the path radiance and atmospheric transmittance functions to remove atmospheric and topographic effects. The first part of processing is the parametric geocoding of the scene to obtain a geocoded, orthorectified image and the view geometry (scan and azimu...
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