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Displaying 3D Graphics in Web Browser
Mahr, Lukáš ; Klepárník, Petr (referee) ; Španěl, Michal (advisor)
This thesis deals with design and implementation of an interactive 3D model viewer in a web browser. Aim of the thesis is to faithfully present industrial and commercial products to potential customers of the product. The final application allows to decompose the object into individual parts and a special semi-transparent edge-highlighted display. The WebGL web technology and the Three.js library are used for implementation.
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Visualisation of Ultrasound Propagation in Human Body
Klepárník, Petr ; Jaroš, Jiří (referee) ; Španěl, Michal (advisor)
This work deals with the 2D and 3D visualization of simulation outputs from the k-Wave toolbox. This toolbox, designed to accurately model the propagation of ultrasound waves in the human body, usually generates immense amounts of output data (up to hundreds of GB). That is why new methods for both the visualization and the effective data representation are necessary to be developed to help users to easily understand the simulation results. This thesis elaborates on the data format, simulation outputs are stored in, with the use of the HDF5 library and looking for the best way to quickly read the simulation data. Finally, the thesis presents the design and the implementation of the console-based application for big simulation data pre-processing and the GUI-based application for interactive visualization of the pre-processed data. The most significant features of these applications are downsampling data, changing the format of storing, viewing 2D sections, planar and volumetric visualization and animation of the simulation process. The proposed implementation allows parts of the simulation domain to be visualised within tens of milliseconds even if the simulation domain comprises GBs of data - This significantly streamlines the work of scientists and clinicians in the field of HIFU.
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Acceleration of 3D Image Processing Using GPU
Jochlík, Jakub ; Klepárník, Petr (referee) ; Španěl, Michal (advisor)
This thesis proposes a solution for acceleration of large 3D image data filtering by using the compute power of graphic cards. This solution uses OpenCL platform to dedicate all necessary computation onto graphical core of the graphic card and furthermore optimize this process using on-board local memory. Design and implementation of the mentioned approach is mainly focused on Sobel Operator.
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Acceleration of 3D Image Processing Using GPU
Kozovský, Radoslav ; Klepárník, Petr (referee) ; Španěl, Michal (advisor)
p { margin-bottom: 0.21cm; direction: ltr; color: rgb(0, 0, 0); line-height: 150%; }p.western { font-family: "Times New Roman",serif; font-size: 11pt; }p.cjk { font-family: "Times New Roman",serif; font-size: 11pt; }p.ctl { font-family: "Times New Roman",serif; font-size: 12pt; } The aim of this work is to accelerate the calculation of selected 2D and 3D image filters using GPU using OpenCL. Specifically, it deals with the implementation and comparison of various variants of Sobel's edge detector and Gauss filter using global or local memory. Acceleration has been achieved on 3D filter variants. On 2D filter variants, the overhead for data transfer to and from the GPU was too high.
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Displaying 3D Graphics in Web Browser
Mahr, Lukáš ; Klepárník, Petr (referee) ; Španěl, Michal (advisor)
This thesis deals with design and implementation of an interactive 3D model viewer in a web browser. Aim of the thesis is to faithfully present industrial and commercial products to potential customers of the product. The final application allows to decompose the object into individual parts and a special semi-transparent edge-highlighted display. The WebGL web technology and the Three.js library are used for implementation.
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Building a 3D Printer
Škop, Martin ; Klepárník, Petr (referee) ; Španěl, Michal (advisor)
The aim of this Bachelor thesis is to analyse available options for 3D printing using FDM technology according to requests of cooperating company, to propose several drafts of electronical and software parts of 3D printers. This also includes their connection, functionality testing and implementation of one chosen draft. The core of this Bachelor thesis was to document the progress in building the 3D printer and also to solve arisen problems. The result of this Bachelor thesis is practical realisation of electronic part of 3D printer including basical tests. Secondary benefit of this Bachelor thesis is to explain the issue of 3D printing with the option of building custom 3D printer from PiBot components.
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Algorithmic Generation of Esthetical Rhytmical Sequences
Mahnert, Jakub ; Klepárník, Petr (referee) ; Beran, Vítězslav (advisor)
The goal of this project is to design and implement a system, suited for proving or disproving the claim that it is possible to generate unique rhythmical sequences, which a human will perceive as aesthetical. In the project, a framework, aiding the design of such algorithms that create rhythmical sequences using composition was implemented. On top of it, several such algorithms were implemented with the notion to test their performance using a custom testing front end solution. From the gained data, the project tries to find correlations between the aspects of the algorithms with the resulting perceived aesthetical value as well as attempt to answer the initial conundrum.
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Interactive Cloth Simulation Accelerated by GPU
Melichar, Vojtěch ; Klepárník, Petr (referee) ; Jaroš, Jiří (advisor)
This master thesis deals with interactive cloth simulation accelerated by GPU. In the first part there is a description of all technologies used during implementation of a program. The second part discusses various simulation methods. It is mainly focused on particle systems as a most used method. These parts are followed by a design of the program, which is implemented as a part of this thesis. The program was implemented in four variants. The first variant is CPU implementation, which was then optimalized with OpenMP. CUDA implementation is based on these implementations. Last variant implemented in this thesis is optimized CUDA implementation. All these implementations are evaluated from compute complexity point of view and suitability for real time graphics.
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Optimization of the Distributed I/O Subsystem of the k-Wave Project
Vysocký, Ondřej ; Klepárník, Petr (referee) ; Jaroš, Jiří (advisor)
This thesis deals with an effective solution of the parallel I/O of the k-Wave tool, which is designed for time domain acoustic and ultrasound simulations. k-Wave is a supercomputer application, it runs on a Lustre file system and it requires to be implemented with MPI and stores the data in suitable data format (HDF5). I designed three methods of optimization which fits k-Wave's needs. It uses accumulation and redistribution techniques. In comparison with the native write, every optimization method led to better write speed, up to 13.6GB/s. It is possible to use these methods to optimize every data distributed application with the write speed issue.
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3D Interface for Web Pages
Klepárník, Petr ; Beran, Vítězslav (referee) ; Szentandrási, István (advisor)
This thesis discusses the possibility of creating 3D Web sites. It primarily focuses on accelerated real time rendering of 3D scenes in a web browser. It uses a web-based graphics library WebGL. This thesis also deals with design of 3D user interface, and implementation of Web pages via JavaScript (WebGL). Finally, user assessments on the proposed implementation are evaluated and the overall results are discussed.
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