Paper
22 September 2015 Meteor localization via statistical analysis of spatially temporal fluctuations in image sequences
Jaromír Kukal, Martin Klimt, Jan Švihlík, Karel Fliegel
Author Affiliations +
Abstract
Meteor detection is one of the most important procedures in astronomical imaging. Meteor path in Earth's atmosphere is traditionally reconstructed from double station video observation system generating 2D image sequences. However, the atmospheric turbulence and other factors cause spatially-temporal fluctuations of image background, which makes the localization of meteor path more difficult. Our approach is based on nonlinear preprocessing of image intensity using Box-Cox and logarithmic transform as its particular case. The transformed image sequences are then differentiated along discrete coordinates to obtain statistical description of sky background fluctuations, which can be modeled by multivariate normal distribution. After verification and hypothesis testing, we use the statistical model for outlier detection. Meanwhile the isolated outlier points are ignored, the compact cluster of outliers indicates the presence of meteoroids after ignition.
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Jaromír Kukal, Martin Klimt, Jan Švihlík, and Karel Fliegel "Meteor localization via statistical analysis of spatially temporal fluctuations in image sequences", Proc. SPIE 9599, Applications of Digital Image Processing XXXVIII, 95992C (22 September 2015); https://doi.org/10.1117/12.2188186
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KEYWORDS
Statistical analysis

Video

Visualization

Atmospheric turbulence

Cameras

Image analysis

Signal detection

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