0461267 20240103212432.220160727235959.9 84957548561 000371553400005 10.1016/j.ascom.2016.01.003 9 s. P cav_un_epca*04383742213-13371443-51Elsevier high-order moments principal component analysis frequency analysis cav_un_auth*0100099 Šimberová Stanislava Sluneční oddělení Department of Solar Physics ASU-R Department of Solar Physics - Team 1 Astronomický ústav AV ČR, v. v. i. cav_un_auth*0101203 Suk Tomáš Zpracování obrazové informace Department of Image Processing ZOI ZOI UTIA-B Department of Image Processing Ústav teorie informace a automatizace AV ČR, v. v. i. cav_un_auth*0314467 GA15-16928S GA ČR We experimentally illustrate performance of the method on simulated data. A typical development of the dynamic phenomenon is modeled by the moment time curve. Then applications to the real data sequences follow: solar active regions observed in the spectral line H alpha (wavelength 6563 angstrom-Ondrejov and KanzelhOhe observatories) in two different angular resolutions. The frequency analysis of the first few principal components showed common periods or quasi-periods of all examined events and the periods specific for individual events. The detailed analysis of the moment's methodology can contribute to the observational mode settings. The method can be applied to video sequences obtained by observing systems with various angular resolutions. It is robust to noise and it can work with high range of sampling frequencies. BN 2017 4 A hod 4ah 20231122141802.3 UTIA-B BD RVO:67985815 RVO:67985556 http://hdl.handle.net/11104/0260903 1 Department of Image Processing UTIA-B 10200 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS S 3+4 Article Astronomy Astrophysics|Computer Science Interdisciplinary Applications COMPUTERSCIENCE.INTERDISCIPLINARYAPPLICATIONS|ASTRONOMY&ASTROPHYSICS 2.016 0.897 1.6 0.00144 0.802 288 1.037 Q1 1.838 39 Q2 46.158 53.8 Q3 Q2 57.619 2016 Soubory v repozitáři: suk-0461267.pdf 84957548561 SCOPUS PUBMED 000371553400005 WOS cav_un_epca*0438374 Astronomy and Computing 2213-1337 2213-1345 Roč. 14 January 2016 43 51 Elsevier