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Integration of Elasticsearch Technology into the ERP System K2
Szymik, Michal ; Hynek, Jiří (referee) ; Bartík, Vladimír (advisor)
This thesis focuses on the integration of Elasticsearch search engine technology into the ERP system of czech company K2 Software s.r.o. This integration deals with both the connection of the system with this technology and its configuration and management through the K2 client application interface. The search engine capabilities are then used in the existing filtering and search mechanism as well as in the autocomplete and global search across the entire system functions. The output of this work is functional and has been deployed in the production version of the K2 system.
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Human-machine collaboration - using haptic device
Kotrba, Tomáš ; Parák, Roman (referee) ; Juříček, Martin (advisor)
The bachelor's thesis focuses on the integration of the SpaceMouse Module haptic device with the collaborative robotic arm UR3 CB3 through the development of a software application in Python. The aim is to create software that enables smooth communication between these devices and implements methods for processing and filtering signals obtained from the SpaceMouse. The theoretical part includes the basics of collaborative robotics and haptic technologies, explaining their principles and describing the current state. The practical part details the process of integrating the UR3 cobot and the SpaceMouse haptic device. It presents the results of experiments in selecting a suitable filter for data filtering from the SpaceMouse.
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Face Anti-Spoofing with Out-of-distribution Detection
Češka, Petr ; Vaško, Marek (referee) ; Špaňhel, Jakub (advisor)
This thesis aims to improve the accuracy of Vision Transformer-based face anti-spoofing models in detecting presentation attacks. The thesis uses out-of-distribution detection to filter out images that are too different from the training data, referred to as in-distribution. It examines how successful different methods are in identifying different data distributions, and how the filtering of out-of-distribution data based on these methods affects the accuracy of the model. Using the relative Mahalanobis distance, an AUROC of 97.6% can be achieved when distinguishing between in-distribution and out-of-distribution data. Filtering out images that should not be classified increases the accuracy of all tested models to over 99.9%. This can provide an additional layer of security for applications against face spoofing attacks.
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Component Filter for .NET WinForms
Maťátko, Martin ; Pospíšil, Milan (referee) ; Malý, Jakub (advisor)
This bachelor thesis focuses on the design and the implementation of a component allowing to filter data. These are in most occasions organised using a database. This can be stored localy at a client, or on a server. The component supports both types of storage. If the database is stored on a server, the filtering criteria can be applied on the server itself even before transfering the data to the client. Furthermore the thesis describes a general solution of the problem and a specific implementation. The component is developped in the C# language for running environment .NET. All the parts of the application, including the graphic user interface, are designed and described with regard to an easy use and expansibility.
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BEHAVIOR OF THE CONCRETE-TO-CONCRETE INTERFACE WITHOUT SHEAR REINFORCEMENT
Čairovič, Dorde ; Terzijski, Ivailo (referee) ; Čajka,, Radim (referee) ; Štěpánek, Petr (advisor)
Doctoral thesis focuses on behavior of the interface between two concrete layers cast at different times and without shear reinforcement. By means of both experimental and numerical analysis, some of the factors affecting interface strength have been assessed. Namely, surface roughness and suitability of different roughness parameters used for its characterization, effects of overlay mechanical properties and collateral effects of surface preparation methods. Also, different tests to assess interface strength have been investigated in detail and mutually compared. The most suitable roughness parameters have been chosen, based on its overall stability. Correlation between mean texture depth and other parameters have been defined. Results of the experimental program intended to further investigate abovementioned effects on interface strength, led to proposition of extended semi quantitative design approach and introduction of coefficient of surface preparation. Based on the extensive experimental program, correlation between different test setups, including its main advantages and disadvantages, has been presented, together with roughness characterization and failure envelope of the dimpled interface.
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BEHAVIOR OF THE CONCRETE-TO-CONCRETE INTERFACE WITHOUT SHEAR REINFORCEMENT
Čairovič, Dorde ; Terzijski, Ivailo (referee) ; Čajka,, Radim (referee) ; Štěpánek, Petr (advisor)
Doctoral thesis focuses on behavior of the interface between two concrete layers cast at different times and without shear reinforcement. By means of both experimental and numerical analysis, some of the factors affecting interface strength have been assessed. Namely, surface roughness and suitability of different roughness parameters used for its characterization, effects of overlay mechanical properties and collateral effects of surface preparation methods. Also, different tests to assess interface strength have been investigated in detail and mutually compared. The most suitable roughness parameters have been chosen, based on its overall stability. Correlation between mean texture depth and other parameters have been defined. Results of the experimental program intended to further investigate abovementioned effects on interface strength, led to proposition of extended semi quantitative design approach and introduction of coefficient of surface preparation. Based on the extensive experimental program, correlation between different test setups, including its main advantages and disadvantages, has been presented, together with roughness characterization and failure envelope of the dimpled interface.
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Topographic mapping of rock formations usig GIS methods
Bashir, Faraz Ahmed ; Štefanová, Eva (advisor) ; Pavelka, Karel (referee)
Topographic mapping of rock formations using GIS methods Abstract This thesis deals with issues of creating 3D models of rock formations with data from terrestrial laser scanning, close range photogrammetry and UAV photogrammetry. The theoretical part focuses on explaining functioning and usage of those methods. Beside that there is described issues of 3D point cloud filtering. Practical part of this work describes data collecting and processing procedure. Further there is proposed filtering process which aim to remove noise points from point clouds and remove vegetation with combination of vegetation index ExG, clustering algorithm DBSCAN and Hough Transform. The proposed method is tested on the selected rock formation in Bohemian Switzerland National Park. The evaluation of the proposed method is based on comparison of models filtered with proposed method with reference models, which are filtered manually. Finally, the achieved accuracy of the models is evaluated using geodetic measurements. key words laser scanning, photogrammetry, UAV, point cloud, data filtering
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Classification of Airborne Laser Scanning Data in Sandstone Landscapes
Tomková, Michaela ; Lysák, Jakub (advisor) ; Potůčková, Markéta (referee)
Classification of Airborne Laser Scanning Data in Sandstone Landscapes Abstract This work is concerned with the classification of airborne laser scanning data in sandstone landscapes called "rock cities". Standard filters do not work reliably in such a rugged terrain covered with dense vegetation and in the results the rock formations are smoothed or even removed from the terrain. The method of classification suggested in this work is based on the procedure used in manual filtration. When exploring a sufficiently dense point cloud in 3D, one is able to distinguish rock formations from trees even though their shapes are similar. In contrast to trees, rock pillars are modeled only by points reflected off the surface and therefore they make concave elevations in the ground. Because of penetration of trees, there are points reflected off a treetop, branches, leaves and also ground under the tree. The proposed method segments a point cloud according to local minima in approximated surface and classifies these objects into classes rock, tree, and mix by inner point distribution. Objects in classes tree and mix are then filtered by lasground function from LAStools. The method was tested with merged point cloud consisted of data from the standard airborne laser scanning of the Czech Republic and experimental...
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Topographic mapping of rock formations with the use of airborne laser scanning data
Lysák, Jakub ; Potůčková, Markéta (advisor) ; Brázdil, Karel (referee) ; Šíma, Jiří (referee)
Abstract This thesis focuses on topographic mapping of rock formations with the use of new technologies in a comprehensive manner, from airborne laser scanning (ALS) data acquisition and processing in rocky terrains, followed by their processing to the content of topographic databases and their cartographic processing in maps. The introduction discusses issues of importance for practice, and the relation between topographic mapping of rocks and other fields of human activity. The ALS section describes products for topographic mapping of rocks derived from ALS data, and discusses the specifics of ALS data acquisition and processing in wooded rugged terrain. Existing solutions of this problem are explained and their limitations are identified. Author's own approaches to solving this task are presented as case studies, including three made a further three designed experiments with ALS data processing and evaluation of their results. Recommendation regarding mapping of sandstone landscapes in Czechia have been also addressed. The topographic section describes the current representation of rocks and related objects in the ZABAGED database (Czech national digital topographic database), explains the historical context, analyzes this data and identifies their shortcomings in relation to the ALS. Research...
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Component Filter for .NET WinForms
Maťátko, Martin ; Pospíšil, Milan (referee) ; Malý, Jakub (advisor)
This bachelor thesis focuses on the design and the implementation of a component allowing to filter data. These are in most occasions organised using a database. This can be stored localy at a client, or on a server. The component supports both types of storage. If the database is stored on a server, the filtering criteria can be applied on the server itself even before transfering the data to the client. Furthermore the thesis describes a general solution of the problem and a specific implementation. The component is developped in the C# language for running environment .NET. All the parts of the application, including the graphic user interface, are designed and described with regard to an easy use and expansibility.
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