Original title: Analysis and Suppression of Noise in Astronomical Video
Authors: Švihlík, J. ; Fliegel, K. ; Koten, Pavel ; Jerhotova, E. ; Vítek, S. ; Páta, P.
Document type: Papers
Conference/Event: Radioelektronika 2011, Brno (CZ), 20110419
Year: 2011
Language: eng
Abstract: This paper is devoted to noise suppression in systems for double station observation of meteors, nowadays known as MAIA (Meteor Automatic Imager and Analyzer). The noise analysis based on acquisition of testing video sequences at different lighting conditions and their statistical evaluation were described in our previous paper The measurement showed that the type of noise generated by the system is signal-independent in a certain illumination range. The noise and image models in the wavelet domain are based on the Generalized Laplacian Model (GLM) and it is the most convenient to estimate the model parameters using the moment method. Furthermore, the noise component may be modeled by the GLM also in the space domain. Overall, we verified that the GLM allows for modeling various types of probability density functions. In the final section of this paper, the performance of the proposed advanced de noising algorithm is verified on the real data, which were acquired in the Astronomical Institute.
Keywords: MAIA; meteor; noise analysis
Project no.: CEZ:AV0Z10030501 (CEP)
Host item entry: Proceedings of the 21st International Conference - Radioelektronika 2011, ISBN 9781612843223

Institution: Astronomical Institute AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0277221

Permalink: http://www.nusl.cz/ntk/nusl-369619


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Research > Institutes ASCR > Astronomical Institute
Conference materials > Papers