Národní úložiště šedé literatury Nalezeno 3 záznamů.  Hledání trvalo 0.00 vteřin. 
Numerical Methods of Image Analysis in Astrometry
Honková, Michaela ; Martišek, Dalibor (oponent) ; Zemek, František (oponent) ; Druckmüller, Miloslav (vedoucí práce)
High-precision follow-up astrometry is essential for tracking Near-Earth Objects, which may pose risk of impact to the Earth. This thesis brings an overview of astrometric process and requirements of precise astrometry, contains the necessary mathematical background, steps of image pre-processing in astronomy, and outlines the use of filters. New methods are proposed to level the background of images prior to performing astrometric measurements for cases when no calibration images were taken. They are based around applying filters on an image to create artificial flatfield, which is then applied back on the image. These methods are tested on sample data and immediately used to obtain astrometry of the first interstellar object 1I/2017 U1 ('Oumuamua).
Numerical Methods of Image Analysis in Astrometry
Honková, Michaela ; Martišek, Dalibor (oponent) ; Zemek, František (oponent) ; Druckmüller, Miloslav (vedoucí práce)
High-precision follow-up astrometry is essential for tracking Near-Earth Objects, which may pose risk of impact to the Earth. This thesis brings an overview of astrometric process and requirements of precise astrometry, contains the necessary mathematical background, steps of image pre-processing in astronomy, and outlines the use of filters. New methods are proposed to level the background of images prior to performing astrometric measurements for cases when no calibration images were taken. They are based around applying filters on an image to create artificial flatfield, which is then applied back on the image. These methods are tested on sample data and immediately used to obtain astrometry of the first interstellar object 1I/2017 U1 ('Oumuamua).

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1 Honková, Martina
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