Computer vision applications for coronagraphic optical alignment and image processing

Modern coronagraphic systems require very precise alignment between optical components and can benefit greatly from automated image processing. We discuss three techniques commonly employed in the fields of computer vision and image analysis as applied to the Gemini Planet Imager, a new facility ins...

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Vydáno v:Applied optics. Optical technology and biomedical optics Ročník 52; číslo 14; s. 3394
Hlavní autoři: Savransky, Dmitry, Thomas, Sandrine J, Poyneer, Lisa A, Macintosh, Bruce A
Médium: Journal Article
Jazyk:angličtina
Vydáno: United States 10.05.2013
ISSN:1559-128X, 2155-3165, 1539-4522
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Shrnutí:Modern coronagraphic systems require very precise alignment between optical components and can benefit greatly from automated image processing. We discuss three techniques commonly employed in the fields of computer vision and image analysis as applied to the Gemini Planet Imager, a new facility instrument for the Gemini South Observatory. We describe how feature extraction and clustering methods can be used to aid in automated system alignment tasks, and also present a search algorithm for finding regular features in science images used for calibration and data processing. Along with discussions of each technique, we present our specific implementation and show results of each one in operation.
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ISSN:1559-128X
2155-3165
1539-4522
DOI:10.1364/AO.52.003394