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Application of Legendre basis for spectral analysis
Mesárošová, Michaela ; Jirgl, Miroslav (oponent) ; Mihálik, Ondrej (vedoucí práce)
The thesis focuses on the possibilities of using Legendre polynomials in order to obtain a spectrum of signals. It examines their properties in the time and frequency domain such as generating methods, root position, and orthogonality. Another goal was to implement the Legendre transform and to verify the quality of the obtained spectra and signal approximations in comparison with various methods. Finally, it deals with the choice of a suitable approximation order as well as the analytical possibilities of spectrum calculation.
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Sparse Representation for Classification of Posture in Bed
Mesárošová, Michaela ; Mihálik, Ondrej
Redundant dictionaries, also known as frames, offera non–orthogonal representation of signals, which leads to sparsityin their representative coefficients. As this approach providesmany advantageous properties it has been used in various applicationssuch as denoising, robust transmissions, segmentation,quantum theory and others. This paper investigates the possibilityof using sparse representation in classification, comparing theachieved results to other commonly used classifiers. The differentmethods were evaluated in a real-world classification task inwhich the position of a lying patient has to be deduced basedon the data provided by a pressure mattress of 30×11 sensors.The investigated method outperformed most of the commonlyused classifiers with accuracy exceeding 92%, while being lessdemanding on design and implementation complexity.
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Sparse Representation of Signals
Mesárošová, Michaela ; Arm, Jakub (oponent) ; Jirgl, Miroslav (vedoucí práce)
People who are immobile or lie for long periods are at high risk of developing pressure ulcers and require additional care. Therefore, it is necessary to monitor the condition of such persons as simply and efficiently as possible. In this work, we focus on processing the signals provided by a pressure mattress with a 30x11 sensor grid on which a person lays and the possibilities of its use after conversion into sparse representation coefficients. Redundant dictionaries, also known as frames, enable non-orthogonal representation of signals, which leads to a sparse representation of coefficients. Since this approach provides many advantageous properties and is being used in various applications, such as denoising, segmentation, robust transformations, quantum theory, and others, we verified the possibility of classifying a person’s lying position based on a sparse representation. The results were compared with other traditional classification methods, which were found to be less suitable for the classification problem, with the best-achieved result of 92.41 % for CNN, but with high demands on time, design and complexity. The success rate of the classification reached 92.76 %, with fewer demands on design and implementation complexity. The possibilities of classification and reconstruction of an image containing occlusions were also investigated, where the sparse representation proved to be an effective method to remove these defects.
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Application of Legendre basis for spectral analysis
Mesárošová, Michaela ; Jirgl, Miroslav (oponent) ; Mihálik, Ondrej (vedoucí práce)
The thesis focuses on the possibilities of using Legendre polynomials in order to obtain a spectrum of signals. It examines their properties in the time and frequency domain such as generating methods, root position, and orthogonality. Another goal was to implement the Legendre transform and to verify the quality of the obtained spectra and signal approximations in comparison with various methods. Finally, it deals with the choice of a suitable approximation order as well as the analytical possibilities of spectrum calculation.
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Uplatnění biopotravin ve školních jídelnách: mateřské školy (České Budějovice)
MESÁROŠOVÁ, Michaela
Práce vychází z projektů Biopotraviny do škol a Bioškoly a představí současnou situaci i perspektivy v oblasti uplatnění biopotravin v jídelnách mateřských škol.Realizace průzkumu na úrovni zřizovatelů a vedení jednotliých MŠ v Českých Budějovicích. Následně výzkum zájmu rodičů ve 2 vybraných MŠ. Vyhodnocení dotazníkových šetření a vymezení základních regionálních bioproduktů vhodných k uplatnění ve školních jídelnách mateřských škol.
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Kulturní dědictví v rozvoji cestovního ruchu Českokrumlovska
MESÁROŠOVÁ, Michaela
Cílem této bakalářské práce bylo zhodnotit současný stav a možnosti dalšího využití kulturního dědictví při rozvoji cestovního ruchu v oblasti Českokrumlovska. Zhodnotily jsme kulturní potenciál cr v dané oblasti a provedli marketingový výzkum v regionu Nuts II Jihozápad. Bylo zpracováno 1 584 dotazníků vybraných mezi účstníky domácího kulturního cestovního ruchu v programu statistica. Výsledky jsou zaznámenány do tabulek a grafů.
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