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Influence of Glottal Shape of Human Vocal Fold on its Modal Characteristics
Zelinka, Martin ; Švancara, Pavel (referee) ; Hájek, Petr (advisor)
The main goal of the bachelor thesis is to create a parametric model with a variable angle of the human vocal fold and to determine the first two frequencies of vocal fold oscillations for all angles from -40 ° to + 40 °. The result is supported by a review of the anatomy of the human vocal system, the creation and modification of the voice, and current models of the human vocal fold. The model used for this work is created in the 3D CAD Inventor model software. Modal analysis is solved in the computer program ANSYS Workbench, solved using finite element methods.
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Modeling the movement of people when organizing mass cultural events
Zelinka, Martin ; Apeltauer, Tomáš (referee) ; Okřinová, Petra (advisor)
The thesis deals with the movement of people in the event of mass events where a large number of people accumulate and thus the risks associated with problematic of so-called soft target. The study deals with the movement of people, taking into account the behavior of visitors, as well as the influence of individuals, couples or groups, as well as the possible movement of evacuated following a critical event. As the target of the analysis is the International Folklore Festival in Červený Kostelec. The aim of the work is to optimize the layout of the festival venue, adjacent areas and accompanying events in its surroundings so as to ensure maximum safety for the participants and eliminate crowd phenomena under different scenarios. The numerical model of the festival with the wider environment created by the Pathfinder software tool will serve as a basis for optimizing the solution.
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Fast Detection of Natural Objects
Zelinka, Martin ; Bartl, Vojtěch (referee) ; Šimon, Martin (advisor)
Thesis deals with the detection and localization of dogs in the image. It analyzes computer vision techniques suitable for solving this problem. It is designed and then implemented solution. Data set of images representing the object of the search and the data set of negative images are created. The resulting solution is finally subjected to training in order to determine the best parameters for used algorithms. The resulting program is included in the attached DVD.
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Hardware-Based Acceleration of Image Filtration
Zelinka, Martin ; Slaný, Karel (referee) ; Vašíček, Zdeněk (advisor)
This bachelor's thesis deals with the hardware-based acceleration of image filtration using FIR filters. Define basic concept about digital image, describes the principle of filtration and briefly explains the techniques used to detect edges in an image and smoothing the image. The main aim of this work is the analysis of several acceleration methods of FIR filters, which are suitable for implementation in hardware, and the subsequent implementation of the selected method with the possibility of configuration changes at runtime with regard to the maximum throughput. In conclusion of this work it is described the evaluation of the method and made compared with the optimal software implementations.
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A Fault Injection Bug Hunting Tool Based on Systemtap
Zelinka, Martin ; Smrčka, Aleš (referee) ; Vojnar, Tomáš (advisor)
This work describes different methods of fault injection, the principles of system calls in operating system Linux and the Systemtap tool. The main aim of thesis is design and implementation of the application that work on the principle of fault injection into the system calls using Systemtap tool. Implemented application automatically identifies the existing system calls with the error return values, which are then replaced the original system calls return value.
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