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Utilization of ALS data for update of a road network
Kutišová, Tereza ; Lysák, Jakub (advisor) ; Brůha, Lukáš (referee)
Utilization of ALS data for update of a road network Abstract My thesis concerned problematics of automatic detection of communication data from aerial laser scanning. Goal of this method is to identify area of roads - tarmacs as accurate as possible. On its basis are counted attributes of specific parts. In first part of the thesis are summarized known procedures, which are used to deal with the issue and experiences and evaluation of the output of theirs authors. In practical part of the thesis is described procedure methodology, which is based on findings from the literature review. Subsequently, input data and model areas are introduced. In the final parts are described results and compared with the results of authors, who used such evaluation in their work. Key words: airborne laser scanning, digital topographic database, road network, database update
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Anemo-orographic systems modeling in GIS
Rusnák, Samo ; Brůha, Lukáš (advisor) ; Štych, Přemysl (referee)
Anemo-orographic systems modelling in GIS Abstract The bachelor thesis proposes a model of anemo-orographic systems and implements it in a GIS environment. The key modelling factor is the snow cover shift due to the wind influence. The implemented tool is executable within the ArcGIS environment and as such is a help for localization of anemo-orographic systems, namely of the places, where the accumulation of snow cover occurs. Executable tool was tested in the Krkonoše national park area using multiple data sources describing the terrain model. Achieved results are introduced in the end of the thesis as well as their accuracy and the final map products. Keywords: anemo-orographic system, GIS, spatial modelling
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Terrain break-lines detection based on Sky View Factor
Englmaierová, Tereza ; Brůha, Lukáš (advisor) ; Bayer, Tomáš (referee)
Terrain Breakline Detection Using Sky-view factor Abstract The subject of this diploma thesis is to propose the procedure of detecting of terrain breaklines using Sky-view factor. The theoretical part of the diploma thesis first introduces the issue of terrain breaklines detection, which presents the methods known to date and Sky- view factor, which is the focal point of the proposed method. Implementation over real data takes place at four locations in the Czechia (Vítkovice, Hradiště, Strnady and Velenka). Data in the form of raster format is tested. At the end, the results of the proposed method and its verification using two selected methods of field edge detection are presented and evaluated. Achieved results point to Sky-view factor for terrain edge detection. Keywords: terrain breakline, digital terrain model, Sky-view factor, detection terrain breaklines methods
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Geoinformation system for the visually handicapped
Šupák, Jakub ; Čábelka, Miroslav (advisor) ; Brůha, Lukáš (referee)
Diploma thesis named "Geoinformation system for the visually handicapped" deals with design and creation geoinformation system that should serve to visually handicapped people with planing the most appropriate route and their movement in a city. First part of thesis is a brief summary of who are visually handicapped people, their needs, abilities and principles of movement. Further are described barrier-free adaptations for visually handicapped people and existing solutions. Practical output is the design of an algorithm for automatically locating and evaluating critical locations based on OpenStreetMaps solution. Visually handicapped people choose not shortest route, but the safest route for their movement. Key words: Critical Point, Visual Handicap, Shortest Route, Optimization, Routing
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Evaluation of the status and changes the availability of the primary health care of Czechia in GIS
Hořínek, Jan ; Štych, Přemysl (advisor) ; Brůha, Lukáš (referee)
This work is focused on evaluation the status and changes in the availability of primary health care in the Czech Republic. Primary health care in this case is divided into four groups according to specialty and surveyed the availability of the population from the whole republic to these doctors and at the same time the validity of the law which sets the availability of primary health care within 35 minutes. In the first part, individual theoretical parts, which are related to the topic and content of the work, are analysed. The next section describes the collection of used data. Another methodical part deals with data editing and processing. The last part contains the results and the evaluation which are illustrated in graphs as well as described. The graphical output is composed of maps (attachment) that show the local availability of the population to primary health care. The results provide not only the current state of primary health care, but also some estimates, how local availability can evolve over the coming years. The overall results are summarized in the conclusion. Keywords: primary health care, accessibility, network analysis, road network, GIS
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Automation of spatial objects modeling in 3D using API of selected modeling software
Mazur, Dominik ; Brůha, Lukáš (advisor) ; Pokorný, Tomáš (referee)
Considering the drudgery related to manual creation of virtual worlds, the opportunity of producing them automatically is too alluring to be dismissed. This bachelor thesis introduces a solution that automates the generation of building's 3D model. The methodological foundation is based on declarative modeling approach and inspired by procedural modeling techniques. Presented work defines the set of rules and parameters. By these means, a faster and more intuitive way to design buildings' models, while preserving the flexibility and control of the user over the construction process, is proposed. The solution is implemented as an add-on for Blender entitled "Buildings generator". The Python scripting, which the add-on is based on, uses the API of open-source software Blender and is available under GNU GPL licence. Keywords: Procedural modeling, Blender, 3D buildings, modeling automation, CityEngine
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Automatic generalization of 3D building models
Brýdl, Ivo ; Brůha, Lukáš (advisor) ; Bayer, Tomáš (referee)
The main aim of this thesis is to propose a novel method for generalization of 3D building models with respect to topology in 3D space. The first part gives an overview over spatial data structures and methods for generalization of 3D objects. The second part presents the methodology composed of volumetric mo- del reconstruction, topology validation and simplification of geometry based on mathematical morphology approach to build multi scale model. Method is then implemented and experimental results are presented. In conclusion results are discussed and possible improvements are suggested.
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GIS in the pasportisation of municipal property
Derfl, Karel ; Štych, Přemysl (advisor) ; Brůha, Lukáš (referee)
GIS in the passportisation of municipal property Abstract This Bachelor thesis deals with the draft proposal of pasportization of the municipality property on the example of a small village using open source technologies. In the practical part this proposal is applied to a model municipality. In the first instance the municipality's requirements for the content of pasportization are examined followed by the appropriate method of data collection and the process of pasportization itself using the QGIS software. The result of the thesis is the draft for the process of creating digital passports, including the data model and outputs in the form of functional passports. Keywords: passport, GIS, open source, QGIS, municipality
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Benchmark methodology of spatial databases
Navrátil, Boris ; Čábelka, Miroslav (advisor) ; Brůha, Lukáš (referee)
This master's thesis deals with comparing the performance of database systems that allow work with spatial data. Performance measurement takes place over data OpenStreetMap. Considerable emphasis is put on the creation of the methodology for database systems efficiency measurement. The methodology is designed for all kinds of database technologiesto ensure its applicability for the next years. The method has been tested on three database systems (PostgreSQL, MySQL and SQLite) and the results are metrically, verbally and graphically evaluated. Keywords: benchmark, testing, spatial database, MySQL, PostgreSQL, PostGIS, SQLite, SpatiaLite, OpenStreetMap, OGC.
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