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Wyszukujesz frazę "Biesemans, Jan" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Atmospheric correction of APEX hyperspectral data
Autorzy:
Sterckx, Sindy
Vreys, Kristin
Biesemans, Jan
Iordache, Marian-Daniel
Bertels, Luc
Meuleman, Koen
Powiązania:
https://bibliotekanauki.pl/articles/1035937.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
Hyperspectral
atmospheric correction
automatic workflow
reflectance
APEX
MODTRAN
Opis:
Atmospheric correction plays a crucial role among the processing steps applied to remotely sensed hyperspectral data. Atmospheric correction comprises a group of procedures needed to remove atmospheric effects from observed spectra, i.e. the transformation from at-sensor radiances to at-surface radiances or reflectances. In this paper we present the different steps in the atmospheric correction process for APEX hyperspectral data as applied by the Central Data Processing Center (CDPC) at the Flemish Institute for Technological Research (VITO, Mol, Belgium). The MODerate resolution atmospheric TRANsmission program (MODTRAN) is used to determine the source of radiation and for applying the actual atmospheric correction. As part of the overall correction process, supporting algorithms are provided in order to derive MODTRAN configuration parameters and to account for specific effects, e.g. correction for adjacency effects, haze and shadow correction, and topographic BRDF correction. The methods and theory underlying these corrections and an example of an application are presented.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2016, 20, 1; 16-20
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geometric correction of APEX hyperspectral data
Autorzy:
Vreys, Kristin
Iordache, Marian-Daniel
Biesemans, Jan
Meuleman, Koen
Powiązania:
https://bibliotekanauki.pl/articles/1035951.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
Hyperspectral
APEX
Geometric correction
Airborne
Georeferencing
Boresight calibration
Opis:
Hyperspectral imagery originating from airborne sensors is nowadays widely used for the detailed characterization of land surface. The correct mapping of the pixel positions to ground locations largely contributes to the success of the applications. Accurate geometric correction, also referred to as “orthorectification”, is thus an important prerequisite which must be performed prior to using airborne imagery for evaluations like change detection, or mapping or overlaying the imagery with existing data sets or maps. A so-called “ortho-image” provides an accurate representation of the earth’s surface, having been adjusted for lens distortions, camera tilt and topographic relief. In this paper, we describe the different steps in the geometric correction process of APEX hyperspectral data, as applied in the Central Data Processing Center (CDPC) at the Flemish Institute for Technological Research (VITO, Mol, Belgium). APEX ortho-images are generated through direct georeferencing of the raw images, thereby making use of sensor interior and exterior orientation data, boresight calibration data and elevation data. They can be referenced to any userspecified output projection system and can be resampled to any output pixel size.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2016, 20, 1; 11-15
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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