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Object Instance Search in Image Dataset
Medvec, Juraj ; Brejcha, Jan (referee) ; Beran, Vítězslav (advisor)
This project is focused on the selected techniques for image searching. In the introduction are presented all existing solutions, which are used in daily use. The other chapters are focused on creating resulting framework. On the end is introduced the demo application, which is using the framework for searching books by front page image.
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Library for OSM Rendering on Smartphones
Vaďura, David ; Brejcha, Jan (referee) ; Herout, Adam (advisor)
The aim of my work was to design and implement a vector map rendering library for mobile phones. The source of the data for the library is the project OpenStreetMap. The library must include these functions: loading and caching of tiles, support for online and offline maps, rendering of all geometry types and possibility to define custom map style. The proposed architecture uses a hybrid approach to presenting the map. Base features are rendered into texture upon loading them. Layers containing text or icons are rendered in real-time above the base map. This enables them to rotate and it ensures that the text stays readable even when zoomed in. The resulting library was implemented in C++ using OpenGL ES for hardware accelerated rendering. It works on both iOS and Android, and it is designed in such a way, that it can be easily used by individuals and companies.
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Image Enhancement Using Depth Maps
Krbec, Jakub ; Brejcha, Jan (referee) ; Čadík, Martin (advisor)
The thesis is dealing with methods for enhance photography captured in nature usingsynthetic depth map. Depth map is obtained from digital terrain model with precision inthe order of meters. Using depth map we can eliminate undesirable effects of weather suchas fog or we can simulate depth of field based on parameters of cameras and lenses oreventually we can simulate unreachable parameters of lenses. The method for eliminatingnegative influence of atmosphere (dehaze) is implemented by combination of available depthmap and depth map estimated directly from input photo. This combination is mainly usedif available depth map is not accurate enough. The method for simulating different depth offield is implemented by convolution of circle kernel which better approximates the shape ofthe camera aperture than Gaussian kernel. Experimental results show that using syntheticdepth map we can successfully simulate small depth of field in outdoor photos and eliminateundesirable influences of atmosphere.
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Semantic Segmentation in Mountainous Environment
Pelikán, Jakub ; Čadík, Martin (referee) ; Brejcha, Jan (advisor)
Semantic segmentation is one of classic computer vision problems and strong tool for machine processing and understanding of the scene. In this thesis we use semantic segmentation in mountainous environment. The main motivation of this work is to use semantic segmentation for automatic location of geographic position, where the picture was taken. In this thesis we evaluated actual methods of semantic segmentation and we chose three of them that are appropriate for adapting to mountainous environment. We split the dataset with mountainous environment into validation, train and test sets to use for training of chosen semantic segmentation methods. We trained models from chosen methods on mountainous data. We let segments from the best trained models get evaluated in electronic survey by respondents and we evaluated these segments in process of camera orientation estimation. We showed that chosen methods of semantic segmentation are possible to use in mountainous environment. Our models are trained on 11, 5 or 4 mountainous classes and the best of them achieve on 4 class mean IU 57.4%. Models are usable in practise. We show it by their deployment as a part of camera orientation estimation process.
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Registration of Photos to 3D Model
Deák, Jaromír ; Brejcha, Jan (referee) ; Čadík, Martin (advisor)
This work refers existing solutions and options for the task registration of photos to 3D model based on the previous knowledge of the geographic position of the camera. The contribution of the work are new ways and possibilities of the solution with the usage of graph algorithms. In this area, the work interests are useful points of interest detection in input data, a construction of graphs and graph matching possibilities.
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ONE OR TWO SCENIC DESIGNERS
Brejcha, Jan ; SMOLÍK, Robert (advisor) ; TÄUBELOVÁ, Kristýna (referee)
This master´s thesis tries to compare and evaluate experiences of the author from his master´s studies. On six selected plays it compares three types of theatre performances – theatre of a big scene (plays Plné ruce revoluce and Cejch), theatre of a puppet scene (plays Slzy ošlehaných mužů and Frankenstein) and author´s production (plays Proroctví severoamerických indiánů and Cern). It investigates its specifics, advantages and disadvantages.
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Typography of web design
Uhlířová, Martina ; Brejcha, Jan (advisor) ; Malečková, Dita (referee)
Typography is one of the most important elements of web design and marketing. Good typography makes web design more appealing, which is important for readers in evaluating titles and the quality of text. The aim of this thesis is to provide a characterization of good and bad typography. I will use this characterization to identify modern typographical trends in a digital background. In the theoretical part, I will describe the basic features of typography. In the practical part, I will distinguish appealing typography and visual smog, and find specific examples demonstrating typographical trends in web design.
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Visual Narrative Elements in Human-Computer Interaction
Galová, Ružena ; Brejcha, Jan (advisor) ; Fišerová, Michaela (referee)
User interface elements and the order in which they are organized and perceived by the user are creating particular narrative - visual narrative. This narrative, which is interpreted by users, should serve as a visual tool to guide users through the process of interaction. Meaning of the interface is created through visual relationships and their hierarchy. Visual narrative can guide the user through the necessary steps of interaction by using an appropriate spacing and enhancing of interfaces elements. Presentational diploma thesis demonstrates that structure of visual narrative has a particular impact on a quality of human-computer interaction. The case study represents application of constructed principles on the selected web pages of airline reservation systems.
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Original and Assumed Sources on World Wide Web
Svatý, Michal ; Brejcha, Jan (advisor) ; Švantner, Martin (referee)
The thesis focuses on problem of authorship of the Internet content. It considers the question whether we can analyze the artwork purely as a closed structure of the symbols or whether it is necessary to take work as a broader structure. The first part of the thesis shows the Internet in general and its specifics it as a medium. The second part is devoted to the problem of authorship. It explains traditional view of Nelson Goodman, who examined the authenticity of artwork with regard to the internal arrangement of the elements structure of the object. The third part shows the later theories inconsistent with the views of Nelson Goodman, views of different contemporary authors who present the changes of authorship aspects in the environment which is under constant development, quickly sharing ideas and resources. New theories suggest to look beyond the authorship of the artwork domain, apply broader focous. The conclusion provides a synthesis of these views.
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Product semantics and its benefit in interactive system's design
Ehrlichová, Lucie ; Brejcha, Jan (advisor) ; Ovesleová, Hana (referee)
The purpose of this thesis is to demonstrate the evolution of product semantics and its options in interactive system's design. This paper focuses on characteristics the emerge of product semantics and areas from which it derives. It also describes current methods of testing usability of interfaces that are optimalized by product semantics. Analyticcal part consists from interface analysis, testing using knowledge from product semantics and evaluation. Conclusion of this thesis is devoted to a concept proposal of design methodology using the knowledge from product semantics.
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