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Pathtracing on GPU
Hájek, Ondřej ; Lysek, Tomáš (referee) ; Polok, Lukáš (advisor)
This bachelor thesis focuses on acceleration of global illumination method called Pathtracing. The goal of this thesis is a demonstration and performance comparison of different implementations of this method on GPU as well as CPU. Implementation will compose of two scenes. One simpler to verify correctnes of used algorithm and one more complicated to demonstrate various effects. The effectiveness and efficiency of said implementations will be analyzed and compared. Additionally, future program expansion and improvements will be discussed.
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Deep Learning for OCR in GUI
Hamerník, Pavel ; Špaňhel, Jakub (referee) ; Lysek, Tomáš (advisor)
Optical character recognition (OCR) has been a topic of interest for many years. It is defined as the process of digitizing a document image into a sequence of characters. Despite decades of intense research, OCR systems with capabilities to that of human still remains an open challenge. In this work there is presented a design and implementation of such system, which is capable of detecting texts in graphical user interfaces.
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Ray Tracing for Electron Microscope
Suchánek, Jan ; Lysek, Tomáš (referee) ; Čadík, Martin (advisor)
This thesis is pointed on simulation of electron microscope. It uses knowledge from ray-tracing methods and physically based rendering with physics of electron microscopy. The main object of this thesis is to create realistic simulator for electron microscope which can generate satisfying realistic images. This output can be used for another research in range of machine learning or microscope application development. This method should replace long and more expensive way of getting test images from real system for those research activities.
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Photorealistic Rendering
Vlnas, Michal ; Lysek, Tomáš (referee) ; Zemčík, Pavel (advisor)
This thesis describes proposal and implementation of a novel global illumination technique using bidirectional path tracing with multiple importance sampling. In the first part, basic informations and techniques are described to explain photorealistic graphic principles. Also, often used methods solving global illumination are shown. The following part summarizes current state of development. Last two parts are focused on mathematical derivation of the bidirectional path tracing and implementation itself using the CPU.
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Interactive Application for Spatial Thinking Training
Mladý, Jakub ; Lysek, Tomáš (referee) ; Tóth, Michal (advisor)
This thesis focuses on the creation of an application that improves logical and spatial thinking. It describes the design, choice of logic games and their following implementation. As the logic games two variations of 3D Tic-Tac-Toe and 3D shape recreation were chosen. The application was implemented in the C++ language using the OpenGL graphics library.
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Photorealistic Rendering Using "Photon Mapping" Method
Lysek, Tomáš ; Herout, Adam (referee) ; Zemčík, Pavel (advisor)
This master thesis focuses on photon mapping rendering technique. A simple photon mapping was implemented as a baseline and then progressive photon mapping was prepared for CPU and GPU. After implementing progressive photon mapping on GPU, further acceleration techniques were proposed. Finally, in the thesis, genetic clustering algorithm for suitable clusters on GPU was proposed.
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GPU Implementation of Resampling Antialiasing
Svoboda, Ondřej ; Lysek, Tomáš (referee) ; Starka, Tomáš (advisor)
The aim of this thesis is the implementation of resampling antialiasing for OpenGL. This thesis is based on already existing solution for DirectX. We are introducing several antialiasing methods used in todays graphical aplications. Next we are describing application implementation with differences against the original solution. Our implementation of resampling antialiasing was compared with other antialiasing methods and with the original solution. Image quality and performace were evaluated.
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WebGL2 Renderer in WebAssembly
Režňák, Pavel ; Lysek, Tomáš (referee) ; Starka, Tomáš (advisor)
This thesis is focused on fast rendering of the 3D scene in a web browser with usage of modern technologies, for instance WebGL and WebAssembly. In this thesis you will find out how to compile an application which was written in C++ language into WebAssembly via Emscripten compilator and how to insert this code into a web page. Futhermore, you will find out how to communicate between C++ language and JavaScript, how to call functions, create instances and how to share memory between them. During design of a rendering core you will learn a few methods how to improve rendering performance. In the end the performance of this technologies is compared.
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Photorealistic Rendering
Melcer, Pavel ; Lysek, Tomáš (referee) ; Zemčík, Pavel (advisor)
This bachelor thesis deals with the realistic rendering of 3D scenes, which describes the procedures leading to the photorealistic image. First are mentioned ways to definition objects, how the scene is rendered on screen, the types of light source and surface characteristics of materials. The work is also a description of the local shading model, optical phenomena and the methods used to realistically display (raytraycing, pathtraycing, radiosity and photon mapping). Next part mentions the reason for choosing the topic and description of implementation methods raytraycing and photon mapping.
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Atmospheric Efects in WebGL
Brydl, Jaroslav ; Lysek, Tomáš (referee) ; Starka, Tomáš (advisor)
This thesis deals with the simulation and rendering of atmospheric effects in WebGL using Three.js application interface. The principles of functioning and implementation of the effects of altering day and night, clouds, snow, rain and shadows are described. Effects are mostly implemented with GLSL shaders that allow easy use across different platforms.
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