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4 February 2002 Correlation tracking algorithms for low-contrast extended object
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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.
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Changhui Rao, Wenhan Jiang, Ning Ling, and Jacques Maurice Beckers "Correlation tracking algorithms for low-contrast extended object", Proc. SPIE 4494, Adaptive Optics Systems and Technology II, (4 February 2002); https://doi.org/10.1117/12.454798
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