National Repository of Grey Literature 44 records found  previous11 - 20nextend  jump to record: Search took 0.01 seconds. 
Changing Object Appearance by Adding Fur
Pražák, Martin ; Herout, Adam (referee) ; Zemčík, Pavel (advisor)
Cílem této práce je demonstrovat možnost renderování srsti přímo do existujících obrazů bez toho, aby bylo po uživateli požadováno překreslení všech pixelů nebo dodání kompletní 3D geometrie a osvětlení. Srst je přidána na povrch objektů pomocí extrakce jejich přibližného tvaru a světelných informací z obrazu a takto získaný objekt je poté přerenderován. Tento přístup je nový v tom, že vysokoúrovňové úpravy obrazu (jako např. přidání srsti), mohou úspěšně vést k vizuálně korektním výsledkům a to i přes omezení nepřesnou geometrií a světelnými podmínkami. Relativně velká množina technik použitých v této práci zahrnuje obrazy s velkým dynamickým rozsahem, metody extrakce 3D tvaru z obrazu, výsledky výzkumu vnímání tvaru a osvětlení a fotorealistické renderování. Hlavním cílem práce je potvrdit koncept popsaný výše. Hlavním implementačním jazykem bylo C++ s použitím knihoven wxWidgets, OpenGL a libTIFF. Renderování bylo realizováno v software 3Delight kompatibilním se standardem Renderman, za pomoci množiny shaderů implementovaných v nativním jazyce Rendermanu.
The use of high-resolution photographs in the real estate practice.
Janů, Ondřej ; Daňhel, Petr (referee) ; Klika, Pavel (advisor)
The aim of the work was to put together the list of possible ways to use high resolution image in real estate practice. Photographies are created by stitching more than one image on itself. Further on was developed methodology of working with these images and was made an illustration with detailed description of the procedure for each individual case. For each procedure were proposed possibilities in practical using. For the thesis purposes was conducted real estate and public survey. Based on results of the survey were purposed draft measures to improve internet real estate advertising.
Ghost-free HDR video using FPGA
Musil, Martin ; Schmidt, Jan (referee) ; Chalmers, Alan (referee) ; Zemčík, Pavel (advisor)
Tato práce navrhuje algoritmus pro pořizování ghost-free HDR videa ze sekvence expozic, který je určený pro implementaci ve vestavěných zařízeních. Vlastnosti algoritmu byly ověřeny implementací ve state-of-the-art architektuře HDR kamery, kde je schopen zpracovávat HDR video s potlačením tzv. ghosting efektu rychlostí až 96 snímků za sekundu na FullHD rozlišení, což více než dostačuje pro zpracování v reálném čase. Navrhovaný ghost-free algoritmus produkuje výstup vizuálně srovnatelný s nejmodernějšími algoritmy, které jsou výpočetně řádově složitější a často je nelze na embedded zařízeních ani implementovat.
Radiography image preprocessing tools
Chmelař, Petr ; Richter, Miloslav (referee) ; Petyovský, Petr (advisor)
This thesis deals with design and realization of methods of preprocessing of X-ray images and its storage. In the first part of this thesis, there were designed and implemented methods for preprocessing of series of X-ray images such as averaging after image registration or merging of images to a HDR image using Debevec method. In the following part of the thesis, there was done a literary research of data formats based on which was implemented a library for x-ray images storage. Both implemented methods allow to reduce a random noise by merging a series of images. Application of the Debevec method also allow to increase a dynamic range of image.
Digital processing of retinal images
Kadlas, Matyáš ; Odstrčilík, Jan (referee) ; Kolář, Radim (advisor)
Goal of bachelor thesis is to create text that is designed to acquaint the reader with the theory and conversion of colour spaces, image editing, anatomy of the eye and retina scanning methods. Bachelor thesis also describes the conversion process and enhacement of retinal images which is then used in the final program.
HDR Image Acquisition on Mobile Devices
Mik, Filip ; Musil, Martin (referee) ; Nosko, Svetozár (advisor)
This bachelor thesis deals with aquisition of high dynamic range images. The resulting HDR image is created by processing of LDR image sequence - by merging and then tone mapping. This thesis includes description of all issues related to the process of acquisition and displaying HDR image. Whole process is then implemented in form of Android application.
Temporal Tone-Mapping Methods for HDR Video
Staněk, Jiří ; Musil, Petr (referee) ; Nosko, Svetozár (advisor)
The diploma thesis provides the theoretical background needed to understand the complex topic of high dynamic range, and deals with the implementation of an innovative method for temporal video tone-mapping. At first, high dynamic range image acquisition, storage and processing are described. Afterwards, a general introduction to tone-mapping, description of undesirable image artifacts and an overview of existing state-of-the-art algorithms are presented. The part which follows focuses on the implementation of the chosen method and proposes several additional enhancements of the initially selected algorithm. Based on the information provided, an application with an intuitive graphical interface, which can be used for temporal HDR video tone-mapping, has been created. Finally, the the achieved results are demonstrated and visually compared with existing methods for temporal video tone-mapping.
High dynamic range images visualization methods
Markovsky, Aleksander ; Kosová, Petra (referee) ; Druckmüller, Miloslav (advisor)
This thesis describes image processing of pictures with high dynamic range. The first part aims to describe ways to reduce visible noise, Fourier transform and convolution for image processing, linear filtering and unsharp mask method. Theoretical framework is followed by a C++ program, that processes HDR images, enhances details and creates a .jpg output.
HDR Image Acquisition from Sequence of Images
Volek, Patrik ; Maršík, Lukáš (referee) ; Musil, Martin (advisor)
This thesis concerns about assembling sequence of images with low dynamic range (LDR) and various expositions to one image with high dynamic range (HDR). Finished program allows to load series of LDR pictues and to use choosen methods to assembly into one HDR image and its mapping into displayable range.
High Dynamic Range Rendering of 3D Graphic Scenes
Rozenberg, Michal ; Chlubna, Tomáš (referee) ; Pečiva, Jan (advisor)
The output of this bachelor thesis is a demonstration application that implements techniques and algorithmus used in rendering graphical 3D scenes in high dynamic range. The C++ programming language and low-level Vulkan API are used to implement this application.

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