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Eye tracking
Magula, Filip ; Rajmic, Pavel (referee) ; Vlach, Jan (advisor)
This work deals with tracing the eyes in real-time video using infrared radiation treatment and detection of its rebound on pupils. It describes the human eye and its response to infrared radiation. It contains proposals for hardware and software solutions and the final realization of the basic options in Simulink, explains the selected methods of digital image processing and includes an assessment of the methods used in this work in conclusion.
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Video database for face feature recognition
Stříteský, Jan ; Říha, Kamil (referee) ; Vlach, Jan (advisor)
This work compares face databases freely accessible on the Internet which are suitable for the testing of developed algorithms for facial features recognition in a picture. In the course of the work’s project a new face video database was created, encompassing a total of 51 samples. The video database includes a simple application suitable for searching through its contents. In order to limit the size of the video database, compression of individual picture samples was conducted. The created video database can be implemented for testing algorithms for facial features recognition (e.g. face detection in a video, identification of a person, detection of eye blinking, speech recognition).
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QoS simulating of wireless network in OPNET
Rágula, Michal ; Molnár, Karol (referee) ; Vlach, Jan (advisor)
The aim of this bachelor work is project and simulation of wireless network with the Quality of Service (QoS) support. It is composed of two parts, the theoretical and the practical one. In the first part there are analyzed findings needed for understanding the existing problems. The second part describes project in detail and setup of network. The theoretical part presents division and format of wireless networks, especially Wi-Fi settings, which is defined by IEEE 802.11 standard. The biggest attention is paid to IEEE 802. 11e standard, which improves the so-called Media Access control MAC (sublayer of line layer) with extension of the QoS (Quality of Service) support in wireless local networks. This standard is important for delay sensitive applications like Voice over Wireless IP and current multimedia. The practical part describes design of wireless network in Opnet Modeler settings and configurations of particular components for the right utility. The required quality of service (QoS) support is achieved by authorization of HCF (Hybrid Coordination Function) protocol at all operating stations and AP access points. It was necessary to make two models. First of them supported the QoS service. On the other hand the same service was inaccessible for the second one. Statistics are made by comparison of final graphs of these two models.
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Database and test question generation
Rejko, Peter ; Míča, Ivan (referee) ; Vlach, Jan (advisor)
Purpose of the following bachelor thesis is to describe tools with focus on creating databases, HTML language, PHP and database server MySQL and creating practical demonstration with interaction those tools by development application which enables generating test questions. There is PHP language, sending of data between PHP scripts, creating and working with forms, relational databases, database system SQL and of course interaction of language PHP and MySQL describe in chapters. The last chapter deals with practical part of this thesis, with application generating test questions providing possibilities in relation with kind of log on user.
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Eye blink detection and recognition
Tesárek, Viktor ; Míča, Ivan (referee) ; Vlach, Jan (advisor)
This master thesis deals with the issues of the eye blink recognition from video. The main task is to analyse algorithms dealing with a detection of persons and make a program that could recognize the eye blink. Analysis of these algorithms and their problems are in the first part of this thesis. In the second part design and properties of my program are described. The realization of the program is based on the method of move detection using the accumulated difference frame, which helps to identify the eye areas. The eye blink detection algorithm tests a match between a tresholded pattern of the eye area taken from the actual frame and the frame before. The resolution whether the eye blink happened or not, is based on the level of the match. The algorithm is designed for watching a sitting man, which is slightly moving. The background can be a little dynamic as well. An average quality video with a moderator and dynamic backround was used as a tested subject.
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Effective data searching on the Internet
Tlusťák, Miloš ; Vlach, Jan (referee) ; Lambertová, Petra (advisor)
This master´s thesis is concerned in problematic of data searching on the Internet which is very actual. It focuses mainly how centralized, decentralized and hybrid searching work. This paper also compares advantages and disadvantages of these methods and describes principles and syntaxes of most-used search engines. Possibilities of use intelligent search agents are shown here as well. The practical part of this thesis is dedicated to development and testing of specialized application for searching. This program enable user to harvest contacts of companies in accordance to defined key-words and creates database file from obtained contacts.
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Methods for image enhancement in interactive applications of digital telecasting
Švanda, Vít ; Vlach, Jan (referee) ; Číka, Petr (advisor)
In this dissertation we deal with methods of minimizing block artefacts in digital terrestrial TV broadcasting. These artefacts are caused by compressions based on the cosine transformation (JPEG, MPEG2 I-Frames). The aim of this work is therefore to create a DVB-J application the main function of which would be to minimize block artefacts in natural images transmitted by DVB-T. That is why we first inquire into the technology of DVB digital transmission and MHP platform which provides the function and the running of interactive applications. Next, we define differences between Java and JavaTV languages and describe the way they develop, simulate and start DVB-J applications. In the following part of this work, we analyze methods that can be used to detect and minimize block artefacts. Further on, we describe the design of an adaptive filter which minimizes block artefacts (hereinafter just ´MHP-MBA´). The major result of the entire work is an MHP-Deblocking application that in itself implements a newly created MHP-MBA deblocking filter as well as a filter from video kodek H.263. In the final part we concern ourselves with testing this application on a genuine set-top-box in DVB-T broadcasting.
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Solution of hosting services on open-service platforms
Matějíček, Ondřej ; Vlach, Jan (referee) ; Kyselák, Martin (advisor)
The main point of this work is to describe complex solution of web-hosting server based on free software. This should provide main services such a post or www server. The work describes instalation of Unix(GNU/Linux) operating system. In addition are described individual services, evolved conrete implementations and also is spoken their installation and configuration. Though this text describe implementation of concrete application, some part of thist text contains generally information about installation, configuration and securing of linux servers.
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Comparison of discrete wavelet transform implementations in C and Java
Talavašek, Kamil ; Vlach, Jan (referee) ; Malý, Jan (advisor)
This thesis deals with discrete wavelet transform of a two dimensional discrete signal using the CDF9/7 wavelet. It contains theoretical principles of discrete wavelet transformation, a description of the convolution and Lifting calculation principle, characteristics of the CDF9/7 wavelet, the possibilities of processing a two dimensional input signal and boundary handling. Both principles (convolution, Lifting) of the calculation of two dimensional discrete wavelet transformation have been implemented within the thesis using the CDF9/7 wavelet in the C++ and Java programming languages. Four applications have been created that way which have been described in detail and then compared with one another especially in light of the calculation speed of discrete wavelet transformation. Finally an analysis of the acquired results and an evaluation of the whole thesis has been performed.
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Architectural gallery
Vlach, Jan ; Marek, Jiří (referee) ; Šindlar, Jiljí (advisor)
Bachelor's thesis project proposal addresses Gallery of Architecture in Brno – Cerna pole. The main theme is the expansion of public street space and the formation of new of pedestrian path by creating a new connection between Drobného and Čenopolní street. The purpose of the project is the cultural and architectural revival around Čenopolní street. The building itself is located inside the existing residential villa area of the thirties. Tthe shape is inspired by pre WWII modernism . The proposed gallery space of the street seems from street level like couple of separate buildings, with interconecting lower platform with a terrace and beautiful a view of Brno. The building contains a gallery with space for conferences and workshops, and a small cafe.
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