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Image codecs based on the wavelet transform
Kiska, Tomáš ; Říha, Kamil (referee) ; Rajmic, Pavel (advisor)
This bachelor´s thesis describes issues of wavelet compression, which is today already in common use mainly at work with digital photographs or other pictures. Using these algorithm you can copy informations and save efficiently. There are main image formats and types of compression suitable for editing pictures desribed in this thesis. So the focus is on discrete wavelet transform, which uses so-called wavelets, the Haar´s and Daubechies wavelet are the best known of all. Next chapter of this work explores colour spaces, in which can be a picture displayed. In case of coding and encoding it is model RGB and YCbCr. Not least there is mentioned term of picture decomposition. At the end, there are image codecs EZW, SPITH and EBCOT which are describe in detail.
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Keeloq System Experiments
Kočíř, Michal ; Hajný, Jan (referee) ; Strašil, Ivo (advisor)
The bachelor thesis deals with security issues in wireless control. On this basis the laboratory task for experiments with Keeloq system is designed. The concept of laboratory task is justified and supplemented by processed documentation. In the first part of this thesis the principles of security and transfer of information for wireless technology are described. In the second part KeeLoq system is analysed. There are the principles of encoding and decoding of transmission of KeeLoq system telegrams described. KeeLoq 3 Development Kit of Microchip company is used for description of encoding and decoding. The next section deals with an attack on KeeLoq system by "brutal force", which is also demonstrated by generated code in programming language C. The third part provides the concept of laboratory tasks that includes introductory meditation, discussion on assigned elements, content and structure of laboratory task. Finally, the fourth part contains the documentation of lab experiments with KeeLoq system, whereby students work out laboratory task.
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Languages and Web Applications Encoding
Charvát, Jaroslav ; Jaša, Petr (referee) ; Kunc, Michael (advisor)
The point of this bachelor´s thesis is creation of web application, which shows using different char sets for various alphabets and languages. In proposal I describe the hardest part of this work. During implementation I had to largely modify proposal. Next I am concerned with analyzing technologies, which I used for realization. I am trying to explain realization parts of the work in part of this document I called Implementation. Application offer controlling in 10 languages.
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System for Recording Video from IP Videocameras
Travěnec, Jiří ; Michal, Bohumil (referee) ; Skokanová, Jana (advisor)
This diploma thesis focuses on multimedia streaming from IP cameras. Its main goal is to explain theoretical background of real-time streaming via computer networks, and describe development of a recording system. This recording system is meant to be used mainly in schools for lecture recording purposes. The thesis contains description on how a recording server application and web-based management system were developed. The theoretical part explains topics related to multimedia streaming, networking, and multimedia procesing, such as real-time streaming protocols, encoding, compression, network latency, network congestion and many others.
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Video and Data Services Quality in the Future Broadband Multimedia Systems and Networks
Kufa, Jan ; Hudec, Róbert (referee) ; Fliegel,, Karel (referee) ; Kratochvíl, Tomáš (advisor)
Téma doktorské práce je zaměřeno na analýzu zpracování signálů v širokopásmových multimediálních sítích a systémech budoucnosti, kde se předpokládají systémy s ultra vysokým rozlišením (UHDTV), vysokým snímkovým kmitočtem (HFR) a stereoskopické systémy (3D). Tyto systémy budou umožňovat vysoce účinnou zdrojovou kompresi obrazu, zvuku a dat a také jejich vysoce účinný přenos, a to jak při volném vysílání (např. DVB-T2), tak ve službách placené televize (např. IPTV). Cílem práce je analýza a vyhodnocení kvality obrazu a služeb v těchto systémech na základě objektivních metrik a subjektivních testů. Práce se dále zaměřuje na analýzu vnímané kvality u stereoskopické televize, kódovací účinnost moderních stereoskopických enkoderů a vlivu sekvencí na uživatelský komfort.
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Controller for chemical device
Janek, Jakub ; Pavlík, Michal (referee) ; Fujcik, Lukáš (advisor)
This thesis focuses on the theoretical analysis of measuring physical quantities using sensors and the design of a measurement unit for physical quantity measurements. It also addresses the hardware design of a measurement station, communication with the user interface, and data visualization in a web environment.
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Semiotic analysis of animated ads
Drahotová, Klára ; Svoboda, Aleš (advisor) ; Sluková, Tereza (referee)
The presented thesis will examine tools of animated commercials on the basis of semiotic analysis of TV advertising. The animation is usually connected whit children's or family movies, however it is also extensively used in commercials, which are designed to affect adult audiences. The goal of the thesis was to find, how animated commercial attracts customers and how it differs from played ad. Therefore the underlying hypothesis is that animation is not just for children, but it may just as well successfully work in production for adults. The thesis is also based on the assumption that animated advertising uses other tools to capture the viewer than advertising played. The theoretical part is focused on presenting animation, its development, specifics and methods of analysis. Also it is focused on semiotic and practical side of advertisement and visual sings of image. In the practical part I will compare selected animated and played ads. My effort will be to describe tools of animation in commercials and to discover how they differ from played ads. Key words: semiotic in advertising, advertising, TV advertisening, animated ad, animation, semiotic analysis, encoding, denotation, connotation, image
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The analysis of czech serials' presentation during their introductory campaign in the prited media
Slavíček, Tomáš ; Reifová, Irena (advisor) ; Jirák, Jan (referee)
"The analysis of czech serials' presentation during their introductory campaign in the prited media" is a title of this diploma thesis. The main aim is to answer the questions "Which characteristics of serials'contents, if any, are emphasized and preferred by the television channels through the chosen press?" and "How are the serials presented within the particular editorial contents?" The serials are Insuring Happiness I, II and Family Bonds I and the printed media are Magazines DNES/Pátek/Právo. The diploma thesis is divided into three main parts. Theoretical part considers the history of audience analysis, through its passive concept to the conception of active audience. This part then deals with "cultural studies" and the work of their two represenatives - Stuart Hall and explanation of encoding/decoding and David Morley with his monograph "The Nationwide Audience". The chapters concerning the definiton of "introductory campaign", chosen serials and printed media also take part in a theoretic part. In its methodical part the diploma thesis focuses on content analysis and two different approaches to analysis - quantitative and qualitative. Analytical part involves the qualitative research itself. At first the procedure and all of its components are defined. Then the found units of research are...
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Video and Data Services Quality in the Future Broadband Multimedia Systems and Networks
Kufa, Jan ; Hudec, Róbert (referee) ; Fliegel,, Karel (referee) ; Kratochvíl, Tomáš (advisor)
Téma doktorské práce je zaměřeno na analýzu zpracování signálů v širokopásmových multimediálních sítích a systémech budoucnosti, kde se předpokládají systémy s ultra vysokým rozlišením (UHDTV), vysokým snímkovým kmitočtem (HFR) a stereoskopické systémy (3D). Tyto systémy budou umožňovat vysoce účinnou zdrojovou kompresi obrazu, zvuku a dat a také jejich vysoce účinný přenos, a to jak při volném vysílání (např. DVB-T2), tak ve službách placené televize (např. IPTV). Cílem práce je analýza a vyhodnocení kvality obrazu a služeb v těchto systémech na základě objektivních metrik a subjektivních testů. Práce se dále zaměřuje na analýzu vnímané kvality u stereoskopické televize, kódovací účinnost moderních stereoskopických enkoderů a vlivu sekvencí na uživatelský komfort.
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Semiotic analysis of animated ads
Drahotová, Klára ; Svoboda, Aleš (advisor) ; Sluková, Tereza (referee)
The presented thesis will examine tools of animated commercials on the basis of semiotic analysis of TV advertising. The animation is usually connected whit children's or family movies, however it is also extensively used in commercials, which are designed to affect adult audiences. The goal of the thesis was to find, how animated commercial attracts customers and how it differs from played ad. Therefore the underlying hypothesis is that animation is not just for children, but it may just as well successfully work in production for adults. The thesis is also based on the assumption that animated advertising uses other tools to capture the viewer than advertising played. The theoretical part is focused on presenting animation, its development, specifics and methods of analysis. Also it is focused on semiotic and practical side of advertisement and visual sings of image. In the practical part I will compare selected animated and played ads. My effort will be to describe tools of animation in commercials and to discover how they differ from played ads. Key words: semiotic in advertising, advertising, TV advertisening, animated ad, animation, semiotic analysis, encoding, denotation, connotation, image
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