Reduction of interpolation errors when using local correlation tracking for motion detection

Potts, H.E., Barrett, R.K. and Diver, D.A. (2003) Reduction of interpolation errors when using local correlation tracking for motion detection. Solar Physics, 217(1), 69 -78. (doi:10.1023/A:1027322016500)

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Publisher's URL: http://dx.doi.org/10.1023/A:1027322016500

Abstract

Local correlation tracking (LCT) is a commonly used motion tracking technique, particularly in solar physics. When used to track motions smaller than one pixel per time sample, interpolation of the original data is required. We demonstrate that it is possible to introduce large systematic errors by using an inappropriate interpolation method, and describe how to avoid these errors. The effect of these errors on the calculated velocity field is demonstrated on simulated solar granulation data.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Barrett, Mr Richard and Potts, Dr Hugh and Diver, Professor Declan
Authors: Potts, H.E., Barrett, R.K., and Diver, D.A.
Subjects:Q Science > QB Astronomy
Q Science > QC Physics
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Solar Physics
Publisher:Springer Verlag
ISSN:0038-0938
ISSN (Online):1573-093X

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