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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Classification of forests damaged by disturbance using multispectral satellite data
 Šmausová, Barbora ; Štych, Přemysl (advisor) ; Červená, Lucie (referee)
The main objective of this thesis is to create an appropriate methodological procedure for classifying damaged forest in the selected area of Šumava National Park. For this purpose, multispectral imagery WorldView-2 and Landsat 8 are used. Work emphasis on distribution of each phase of forest development affected by bark beetle. According to selected legend, involving multiple stages of damaged but also recovering forest, the images are classified by Neural Network, Support Vector Machine and object classification methods. Application of these methods on selected images required a suitable choice of parameters and rules to achieve optimal results. The results of this thesis compare and evaluate the final classification. Another outcome of this work is to evaluate the influence of the processed images WorldView-2 and Landsat 8 on the final classification performance. All work results are assessed by overall precision, error matrix and kappa coefficient. Powered by TCPDF (www.tcpdf.org)
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Evaluating of data sources and land use changes in Prague and surroundings
 Šmausová, Barbora ; Štych, Přemysl (advisor) ; Janoušek, Zbyněk (referee)
The aim of this study was to compare the data sets used in land use / land cover in terms of their content and analyze their classification systems. The work is focused on the capital city of Prague and its surroundings. The data used are described and characterized. Review was made for available data sets on a general level, especially focusing on their classification systems. For further work was chosen model area containing four cadastral (Čestlice, Křeslice, Průhonice, Újezd u Průhonic). In the model area was made analysis of data, which focused on a comparison of classification systems using spatial overlays, status and map of changes. The resulting synthesis was carried out on the basis of a general review and analysis carried out for the model area. The results of the work answer to the fundamental objectives of the work and try to describe the basic knowledge of the different and identical parameters of studied data sets. Powered by TCPDF (www.tcpdf.org)
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