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Proceedings Article

Correlation tracking algorithms for low-contrast extended object

[+] Author Affiliations
Changhui Rao, Wenhan Jiang, Ning Ling

Institute of Optics and Electronics (China)

Jacques M. Beckers

National Solar Observatory (USA)

Proc. SPIE 4494, Adaptive Optics Systems and Technology II, 245 (February 6, 2002); doi:10.1117/12.454798
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From Conference Volume 4494

  • Adaptive Optics Systems and Technology II
  • Robert K. Tyson; Domenico Bonaccini; Michael C. Roggemann
  • San Diego, CA, USA | July 29, 2001

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.

© (2002) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Changhui Rao ; Wenhan Jiang ; Ning Ling and Jacques M. Beckers
"Correlation tracking algorithms for low-contrast extended object", Proc. SPIE 4494, Adaptive Optics Systems and Technology II, 245 (February 6, 2002); doi:10.1117/12.454798; http://dx.doi.org/10.1117/12.454798


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