no code implementations • 9 Dec 2023 • Vasil Kolev, Todor Cooklev, Fritz Keinert
Convergence rates of the two numerical algorithms are investigated for a number of singular and nonsingular scalar and matrix polynomials taken from different areas.
no code implementations • 12 Oct 2023 • Lachezar Filchev, Vasil Kolev
During past decades a marked manifestation of widespread erosion phenomena was studied worldwide.
no code implementations • 3 May 2023 • Vasil Kolev, Yavor Chapanov
The oscillations of climatic parameters of North Atlantic Ocean play important role in various events in North America and Europe.
no code implementations • 19 Aug 2021 • Lachezar Filchev, Lyubka Pashova, Vasil Kolev, Stuart Frye
The ever-growing need of data preservation and their systematic analysis contributing to sustainable development of the society spurred in the past decade, numerous Big Data projects and initiatives are focusing on the Earth Observation (EO).
no code implementations • 16 Oct 2019 • Vasil Kolev, Todor Cooklev, Fritz Keinert
We consider the design of an orthogonal symmetric/antisymmetric multiwavelet from its matrix product filter by matrix spectral factorization (MSF).
no code implementations • 7 Oct 2013 • Vasil Kolev, Katya Tsvetkova, Milcho Tsvetkov
We want to approximate the mxn image A from scanned astronomical photographic plates (from the Sofia Sky Archive Data Center) by using far fewer entries than in the original matrix.
no code implementations • 27 Nov 2011 • Vasil Kolev
A simple approach for orthogonal wavelets in compressed sensing (CS) applications is presented.
no code implementations • 19 Oct 2010 • Vasil Kolev
This article is about the architecture of a lossless wavelet filter bank with reprogrammable logic.
no code implementations • 22 Jul 2010 • Vasil Kolev
In this paper orthogonal multifilters for astronomical image processing are presented.