National Repository of Grey Literature 68 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Device for the traffic situation evaluating
Gábel, Matej ; Honec, Peter (referee) ; Janáková, Ilona (advisor)
The bachelor's thesis deals with the implementation of a device for evaluating the traffic situation, specifically by traffic signs detection. In this work, I tried different methods of traffic sign recognition, where the resulting implementation on hardware is done using convolutional neural networks. More precisely, it is the YOLOv5 architecture, which is suitable for recognizing traffic signs in real time.
Simulation of defects and impurity of sensing technics in images
Lipovský, Kristián ; Kratochvíla, Lukáš (referee) ; Janáková, Ilona (advisor)
The aim of the bachelor thesis is the simulation of various defects on optical devices. At the same time, the bachelor’s thesis will contain a database of images of various defects on optical devices for the purpose of analyzing their manifestations on real images.
3D scanner
Bezecný, Martin ; Janáková, Ilona (referee) ; Richter, Miloslav (advisor)
This bachelor thesis concerns the problem of 3D object reconstruction from it's photographs. The aim of thesis is to study the problem of 3D reconstruction using photogrammetry and then apply these findings to create a program that implements the reconstruction.
Variants of the active triangulation technique
Sýkora, Vojtěch ; Richter, Miloslav (referee) ; Janáková, Ilona (advisor)
This thesis is about method called active triangulation, specifically about measure systems which using mirror in it. In thesis is explain principle of active triangulation and principles of other optic measuring technic. Then there is described design of measuring system, its calibration and finally the measurement itself. The possibility of using a telecentric lens for measuring systems based on the principle of active triangulation is also tested. All programs are written using MATLAB.
A computer vision system for emotion recognition
Wójcik, Jan ; Bilík, Šimon (referee) ; Janáková, Ilona (advisor)
The term paper deals with the design of an emotion recognition system, which will be used as a communication tool for people with autism spectrum disorder. Camera data will be used for emotion recognition, so it will be a computer vision application. The work deals with areas such as face detection, extraction of relevant features, finding a suitable dataset or designing a classifier.
Device for scanning the museum collection
Drapač, Lukáš ; Janáková, Ilona (referee) ; Honec, Peter (advisor)
This bachelor thesis deals with designing and construction of the device, which should improve the digitalization of the museum collection of Easter eggs in terms of effectiveness and data presentation. This thesis presents design of the device, which was printed on a 3D printer, and the hardware components of the device. Programs for controlling the device and rendering 3D models of Easter eggs were written in C++, C# and Java. When started, the device takes pictures around the perimeter of the Easter egg and processes them. The results are 3D models, which can be viewed from Gallery in the desktop application.
Eulerian Video Magnification
Řičánek, Dominik ; Janáková, Ilona (referee) ; Honec, Peter (advisor)
In this paper we go over the research behind eulerian video magnification, its beginnings and inovations which lead to its potential use in real time heart rate measurement. The spacial differences are exaggerated using the Gaussian pyramid in conjuncture with face detection using the MediaPipe Face Mesh solution, which leverages machine learning for ultra fast performance. The resulting signal is clear enough to allow pulse extraction using the Fourier transform. Evaluation is conducted upon the final prototype to see how suitable is EVM in combination MediaPipe for use in surrveilance systems. At the end we discuss the limitations and how to possibly overcome them.
Active stereo vision
Doležal, Milan ; Richter, Miloslav (referee) ; Janáková, Ilona (advisor)
This thesis deals with active stereo method for measurement of objects with transparent layer. In theoretical part of this thesis is described method of active triangulation and method of active stereo. After that, there is research of articles focused on transparent layer in optical measurement. Next chapters deal proposition of measuring system, it's parameters, calibration, procedure and evaluation of measurement. MATLAB was selected as programming platform.
Evaluation of blinking and the observed place on the monitor
Klimeš, Petr ; Jirgl, Miroslav (referee) ; Janáková, Ilona (advisor)
The purpose of this thesis is to create a system for user’s gaze and eye analysis in a driving simulator. There is a research of existing methods for facial landmark detection, head pose and gaze estimation and eye blink detection. Software and hardware of the simulator is described and a camera is added for user recording. In the main part, the Eye Aspect Ratio method is tested for blink detection. Next, head pose detection from facial landmarks is tested. Furthermore, Convolutional Neural Networks are created and trained for gaze estimation. From existing algorithms, OpenFace library is tested. OpenFace library is added to existing software in Unreal Engine and used for gaze and blink detection. A gaze calibration procedure is created and tested for better accuracy.
Contactless speed measurement
Opletal, Tomáš ; Janáková, Ilona (referee) ; Honec, Peter (advisor)
Semestral thesis discusses realization of system for Contactless speed measurement of paper. At first, it discusses basics of computer image processing and analysis of movement of an object. The next chapter describes whole process of choosing measurement method, camera, lightning, output interface and description of implemented algorithm. Next chapter contains summary of achieved result. Last chapter describes summary of this work, advantages and disadvantages of this system.

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