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Computer vision and stereo vision
Bubák, Martin ; Klimeš, David (referee) ; Vejlupek, Josef (advisor)
This dissertation work is describing the usage of the software tool Computer Vision System Toolbox to create applications in computer vision. At the beginning of the work is performed background research of image scanning and its representation by using colour models. It is followed by a description of epipolar geometry and lastly is stated a description of the Computer Vision System Toolbox. In the next section of the work we deal with setting of used Basler cameras and processing of the scanned image. The following is a description how to create applications for object detection and after this description, we get to know applications for creation of depth maps area.
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Extending the functionality of educational robotic manipulator
Nejedlík, Tomáš ; Šubrt, Kamil (referee) ; Klimeš, David (advisor)
This thesis deals with extending the functionality of robotic manipulator. The main objective is the implementation of control algorithms into microcontroller dsPIC. In the first part, realizable modifications on the manipulator are described. Touch end sensors are replaced by touch less Hall sensors. End effector, which is used for writing, is replaced by gripper for moving items. Another section deals with design PCB with microcontroller and it describes the final program. The last part deals with connection intelligent touch display, which is used for controlling the manipulator. Demonstration application is created to show the use of the display and new end effector.
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Hardware and software solution for diagnostics and safety operation for robotic manipulator
Klimeš, David ; Kubela, Tomáš (referee) ; Grepl, Robert (advisor)
This thesis deals with design and use of manipuilator with three degrees of freedom. The main objective is to develop appropriate educational platform. Firstly, it deals with definition of the goals and design method based on kinematic and dynamic models. Another section is dedicated to the design and implementation of the electronics needed for the safe and reliable operation of the manipulator as a educational platform. The last part deals with the use of manipulator together with additional sensors as well as vision system. The result is a demonstration of tasks use of manipulator. Example of use of this educational platform is implemented in a few demonstration tasks.
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Design of control unit for two-wheeled self-balancing vehicle
Bastl, Michal ; Klimeš, David (referee) ; Chalupa, Jan (advisor)
This diploma thesis is a part of a project of two students. The aim of the project is to design safer electronics for the unstable balancing vehicle HUMMER and implementation of advanced diagnostics and fault detection. In the first part of the project we analysed the original vehicle using the FMEA analyse and created a new concept of the vehicle. The second part of the project describes a new hardware. I designed and tested the power electronics, control unit and supplies. The outputs of the work are prototypes which allow testing a new concept.
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Design of an application for educational model of a manipulator with three degrees of freedom
Youssef, Daniel ; Křivánek, Václav (referee) ; Klimeš, David (advisor)
Tato práce popisuje další vývoj výukového sériového manipulátoru se třemi stupni volnosti. Práce se zabývá jednoduchou mechanickou úpravou manipulátoru, ale především pak softwarovou částí. Výsledkem je pak hra piškvorky, kdy manipulátor umožňuje hru proti lidskému protějšku. První část práce je věnována zlepšení inicializačního procesu manipulátoru a následně pak i návrhem vhodné polohové regulace. V další části je manipulátor rozšířen o jeden stupeň volnosti. Součástí je i návrh koncového efektoru vhodného pro psaní. Z takto upraveného manipulátoru je sestaven kinematický model vhodný pro real-time řízení. Dalším krokem v práci je návrh samotné aplikace hry piškvorky. Je navržen vhodný hrací algoritmus, včetně detekce a rozpoznání znaků v hracím poli pomocí kamery. Následně je vše implementováno do real-time aplikace, kde komunikaci s uživatelem zajišťuje navržené uživatelské rozhraní.
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Testing parameters of stepper motors at different microstepping mode
Műller, Jakub ; Chalupa, Jan (referee) ; Klimeš, David (advisor)
This thesis deals with design and construction of test equipment that allows measurements of basic parameters of stepper motors. The first part is devoted to the search about the principle of operation of the hybrid stepper motor. For the analysis engine has been used a mathematical simulation model with real parameters in Matlab/Simulink. The next section is the design of mechanical and electronic form of the test facility with a description of the components used. The last part of this work is focused on measuring the excitation currents and measuring loss of steps at various control modes and microstepping.
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AI and fact-check journalism - the pitfalls of the search for truth by artificial intelligence
Haber, Josef ; Moravec, Václav (advisor) ; Klimeš, David (referee)
The diploma thesis entitled AI & fact-check journalism - the pitfalls of the search for truth by artificial intelligence examines the connections between contemporary journalism, fact-checking, and artificial intelligence tools in the post-truth era. It describes the relationships between objectivity and interpretation and explores the problem of dichotomy between fact and value. The theoretical discussion is then translated into a practical issue using the journalistic discipline of fact-checking. Artificial intelligence tools and their potential for journalism are introduced. The practical part of the thesis focuses on experiments with an AI tool that automates fact-checking. The tool is tested using four alternative knowledge bases represented by Czech media datasets. All models show the expected response to ontologically truthful and false claims, confirming truths and debunking lies. Subsequently, the true opinions of the models about social reality are tested. The results demonstrate that the models adopt the opinions published in the datasets. However, it was not possible to trace systematic model opinions towards polarization in thematic areas from the results. The thesis includes suggestions for future changes in experiments. In the conclusion, the results are linked with both practical...
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