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Proceedings Paper

Correlation tracking algorithms for low-contrast extended object
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Paper Abstract

Based on the principle of correlation tracking algorithm, the effectiveness of Cross Correlation coefficient and Absolute Difference algorithms for the low contrast extended objects such as solar granulation and the sunspot is studied. The tilt signals computed by computer post- processing are presented for the successively acquired solar granulation images. Moreover, the contrasts of the long exposure images of the solar granulation and sunspot without and with tilt removal are compared.

Paper Details

Date Published: 4 February 2002
PDF: 7 pages
Proc. SPIE 4494, Adaptive Optics Systems and Technology II, (4 February 2002); doi: 10.1117/12.454798
Show Author Affiliations
Changhui Rao, Institute of Optics and Electronics (China)
Wenhan Jiang, Institute of Optics and Electronics (China)
Ning Ling, Institute of Optics and Electronics (China)
Jacques Maurice Beckers, National Solar Observatory (United States)

Published in SPIE Proceedings Vol. 4494:
Adaptive Optics Systems and Technology II
Robert K. Tyson; Domenico Bonaccini; Michael C. Roggemann, Editor(s)

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