National Repository of Grey Literature 165 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Usage of two-dimensional barcodes for camera position estimation in AR applications
Boháč, Daniel ; Věchet, Stanislav (referee) ; Adámek, Roman (advisor)
This thesis deals with the creation of algorithm for camera pose estimation using QR codes in augmented reality applications. It must be able to work with multiple codes in the image. The OpenCV computer vision library and the Python programming language are used for this. The algorithm is then included in an easy-to-use library. The created solution is compared against ArUco markers. Finally, a sample application is created.
Evaluation of image processing methods for flying object tracking using drone
Daniš, Stanislav ; Věchet, Stanislav (referee) ; Krejsa, Jiří (advisor)
The bachelor thesis was focused on the evaluation of tracking algorithms contained in the OpenCV library against the motion blur effect. A dataset of videos was created with defined ranges of selected parameters that influenced the motion blur effect (speed, distance from the object, position of light and others). Each of the videos was processed using a tracking algorithm. From these results, findings on the effectiveness of each of the algorithms for a defined situation were formulated in the conclusion.
Design of electronic subsystem for reduced gravity impact simulator
Ostrý, Lubomír ; Hadaš, Zdeněk (referee) ; Věchet, Stanislav (advisor)
The focus of this thesis is development of an electronic subsystem for reduced gravity impact simulator. The research part of this thesis firstly covers methods used for simulation of microgravity or reduced gravity and compares them. Another part of research focuses on three selected potential approaches to creating the electronic subsystem for this device. The second, practical, part of this thesis describes the design and development of the electronic subsystem. The foundation of the electronic subsystem is a control unit which has been developed on the basis of an STMicroelectronics microcontroller. Using the control unit, the electronic subsystem measures pressure, position, acceleration and force in the system. Another task of the control unit is control of a stepper motor. Integration of individual elements into the electronic subsystem is described both in terms of software and hardware. Furthermore, a graphic user interface program for PC has been developed as a means to interact with the system. In the final part of the thesis, the operation of the electronic subsystem is described and lastly, the electronic subsystem is evaluated.
Control system design for small test machine
Rasocha, David ; Králík, Jan (referee) ; Věchet, Stanislav (advisor)
This thesis focuses on design of small testing machine for measuring tensile strength of materials. Appropriate hardware for driving the motor with serial communication will be used. Main drive is a stepper motor with microstepping. Instructions for motor is provided by microcontroler which will be comunicating with aplication in computer. This aplication will have all user functions nessesary for using this device.
Implementation of monitoring system of house plants in IoT environment
Mach, Sebastián ; Appel, Martin (referee) ; Věchet, Stanislav (advisor)
This master's thesis is about the design and development of a flower pot sensor, which monitors data related to the cultivation of houseplants. The sensor sends the data to the cloud, where the analysis is performed and the evaluated living conditions of the monitored plant are displayed to the user.
Design and realization of data processing system from environmental sensors in IoT environment
Maraczek, Patrik ; Bastl, Michal (referee) ; Věchet, Stanislav (advisor)
The master’s thesis deal with design and realization of measuring station, which process data from environmental sensors in IoT environment. Thesis includes research of sensors, cloud services for IoT, microcontrollers and environmental data available online. Thesis contains detailed procedure for realization of designed system, including code description for microcontrollers STM32W55 and STM32 B-L475E-IOT01A2 Discovery kit, configuration of IBM Watson IoT Platform cloud service and procedure for correct programming of Node-RED application responsible for logic of whole system. Source code, which might be used for simple implementation of designed system, is attached to the master’s thesis.
Design of autonomous vehicle simulator
Machač, Petr ; Králík, Jan (referee) ; Věchet, Stanislav (advisor)
Tato práce se zabývá simulačními prostředky pro vývoj algoritmů pro řízení autonomních automobilů. V zásadě lze rozdělit na dvě části, na rešeršní, teoretickou, a praktickou, vývojovou. V té prvně zmíněné je uveden přehled dostupných nástrojů pro simulaci autonomních vozidel, jedná se jak o nástroje open-sourcové tak placené. Dále se v teoretické části popisuje princip a nástroje, resp. enginy pro řešení dynamických rovnic na počítači. Důraz je kladen na fyzikální engine Box2D který je dle zadání této práce využit ve druhé části teze pro vývoj vlastního prostředí simulujícího autonomní automobil.
Realization of camera module for mobile robot as independent ROS node
Albrecht, Ladislav ; Appel, Martin (referee) ; Věchet, Stanislav (advisor)
Stereo vision is one of the most popular elements in the field of mobile robots and significantly contributes to their autonomous behaviour. The aim of the diploma thesis was to design and implement a camera module as a hardware sensor input, which is independent, with the possibility of supplementing the system with other cameras, and to create a depth map from a pair of cameras. The diploma thesis consists of theoretical and practical part, including the conclusion of results. The theoretical part introduces the ROS framework, discusses methods of creating depth maps, and provides an overview of the most popular stereo cameras in robotics. The practical part describes in detail the preparation of the experiment and its implementation. It also describes the camera calibration and the depth map creating. The last chapter contains an evaluation of the experiment.
Design of traffic sign detector using image processing methods
Šmíd, Josef ; Adámek, Roman (referee) ; Věchet, Stanislav (advisor)
This master thesis deals with the design of a traffic sign detector using the image processing methods. The OpenCV library for working with images in programming language Python is used for this. The first part reports on the using methods. In the next part, these methods were tested on images of traffic signs taken in traffic in different lighting conditions. The results of these tests led to the design of optimal methods and their settings, which were re-verified by verifying on video of driving in traffic. This also revealed the conditions under which they can operate in real-time systems. Finally, an optimization algorithm for compensation of detection errors was proposed from the monitoring of detection waveforms.
Road detection in outdoor environment using image processing
Vrbičanová, Antónia ; Věchet, Stanislav (referee) ; Krejsa, Jiří (advisor)
The Master’s thesis deals with the issue of the road detection in the outdoor environment using image processing. It is highly required that the methods selected are robust to sudden light changes within the image and effective in detection of wide variety of road surfaces possibly comprising certain kinds of pollution. Two methods have been used in order to reach the desired goal. The initial method uses standard algorithms of the image processing. Main outcome of this method are highlighted road boundaries. The following methodisbasedonconvolutionalneuralnetworks.Inthiscasewehaveclassificationtask. The result of this method is the estimation of the road direction. In the whole process, severalneuralnetworkstructureshavebeendesigned.Afterthenetworktrainingthemost suitable one was selected. Eventually, the results have been retested using newly created test set. Both of these methods are implemented in programming language Python.

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