National Repository of Grey Literature 34 records found  previous11 - 20nextend  jump to record: Search took 0.01 seconds. 
The people tracking by the podium illumination using a camera
Rajnoch, David ; Fliegel, Karel (referee) ; Boleček, Libor (advisor)
This diploma thesis describes design and implementation of people tracking system for moving head spot light. The theoretical part describes methods of detection and tracking, practical part deals with hardware selection and software programming. DMX512 is being used to control light. Program is written in C++ and it uses OpenCV library.
Simulation of the DVB-S2 Transmission
Klíma, Jindřich ; Fliegel, Karel (referee) ; Kaller, Ondřej (advisor)
This thesis is focusing on the second satellite digital TV standard, DVB-S2. It deals with the principle of the digital TV and the first standard DVB-S. It also describes the very beginning and characteristics of the DVB-S2, new technologies in use, architecture and the individual topics are then explained more in detail. The thesis also contains the program of transmission simulation of DVB-S2 in MATLAB. In the laboratory of television technology UREL, two standards were measured and compared with the values obtained from the program. The functionality of the program and the benefits of DVB-S2 were verified afterwards.
Computational methods in single molecule localization microscopy
Ovesný, Martin ; Hagen, Guy Michael (advisor) ; Plášek, Jaromír (referee) ; Fliegel, Karel (referee)
Computational methods in single molecule localization microscopy Abstract Fluorescence microscopy is one of the chief tools used in biomedical research as it is a non invasive, non destructive, and highly specific imaging method. Unfortunately, an optical microscope is a diffraction limited system. Maximum achievable spatial resolution is approximately 250 nm laterally and 500 nm axially. Since most of the structures in cells researchers are interested in are smaller than that, increasing resolution is of prime importance. In recent years, several methods for imaging beyond the diffraction barrier have been developed. One of them is single molecule localization microscopy, a powerful method reported to resolve details as small as 5 nm. This approach to fluorescence microscopy is very computationally intensive. Developing methods to analyze single molecule data and to obtain super-resolution images are the topics of this thesis. In localization microscopy, a super-resolution image is reconstructed from a long sequence of conventional images of sparsely distributed single photoswitchable molecules that need to be sys- tematically localized with sub-diffraction precision. We designed, implemented, and experimentally verified a set of methods for automated processing, analysis and visualization of data acquired...
New video coding algorithms
Zach, Ondřej ; Počta,, Peter (referee) ; Fliegel, Karel (referee) ; Slanina, Martin (advisor)
Předložená dizertační práce se zabývá moderními algoritmy pro kódovaní videosekvencí, zejména algoritmem High Efficiency Video Coding, a jeho použítím v prostředí online streamování. Vzhledem k tomu, že chování koncových diváků směřuje ke sledování video obsahu kdykoli a kdekoli, způsob, jakým je obsah doručen k divákovi, se stává stejně důležitým, jakým je samotné kódování. V této práci se zaměřujeme na užití HEVC ve službách založených na HTTP adaptivním streamování, zejména ve službách využívajích DASH. Dále se zabýváme dalšími aspekty, které mají vliv na kvalitu zážitku (Quality of Experience) tak, jak jej vnímá koncový uživatel. Takovými jsou na příklad přítomnost reklamy či další systémové parametry. Abychom mohli sbírat názory uživatelů, pro naše experimenty často používáme crowdsourcing. Z tohoto důvodu je část této práce věnována samotnému crowdsourcingu a tomu, jak jej lze využít pro hodnocení kvality videa.
Signal propagation in wireless communication systems IEEE 802.11
Vyčítal, Jaroslav ; Fliegel, Karel (referee) ; Polák, Ladislav (advisor)
This paper deals with the propagation of waves. Here is the wavelength distribution according to the wavelength. It focuses on the UHF and SHF band in which IEEE802.11n operates. Contains model breakdown by cell type. Describes which propagation methods are dominant in the cell type. Several propagation patterns are presented, which are then modeled in Matlab environment.The models are then compared to experimental measurements.

National Repository of Grey Literature : 34 records found   previous11 - 20nextend  jump to record:
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