|
Rendering Using Deep Shadowmaps
Hypský, Jan ; Kobrtek, Jozef (referee) ; Polok, Lukáš (advisor)
In computer graphics is problematic shadow rendering. Applications require to choose the appropriate lighting and shading method with respect to speed and display quality. This work is focused on rendering the shadows and eliminate alias, arising during their creation. For to create shadows will work to implement the methods Shadow Maps and she's extensions variant Deep Shadow Maps. Shadow maps allow to create shadow independently of the scene complexity without treatment alias. Deep shadow maps are able to display shadows along with the removal of alias thereby improve the quality of shading. For lighting scene are used local Lambert lighting models. The resulting application is created with using library OpenGL.
|
|
System for Sharing Scanners over Network
Richter, Martin ; Rychlý, Marek (referee) ; Očenášek, Pavel (advisor)
The purpose of this master's thesis is creation of a system capable of sharing scanners over computer network. The target scanner interfaces are TWAIN and WIA on Microsoft Windows operating system, and SANE on GNU/Linux. C++ programming language, Boost libraries and Qt framework were used to implement the programming part of this work. Several smaller helper libraries were implemented that are useful even outside this work, most notably TWAIN++ framework. The resulting system enables the user to share scanners over network, and scan using any of the aforementioned interfaces.
|
|
Viewing Large Raster Geodata Online
Mikita, Martin ; Španěl, Michal (referee) ; Herout, Adam (advisor)
This thesis describes the design of a multi-platform client-server application to access large raster data, existing and proposed ways to optimize the running speed and processing raster. The advantage of the application is an updated version of GDAL for reading most known raster format, and implementing extension for reading GeoPDF with open-source PDF rendering library. Integrating created and optimized server component into the open-source project IIPImage improves it to support more raster formats.
|
|
Gradient Boosting Machine and Artificial Neural Networks in R and H2O
Sabo, Juraj ; Bašta, Milan (advisor) ; Plašil, Miroslav (referee)
Artificial neural networks are fascinating machine learning algorithms. They used to be considered unreliable and computationally very expensive. Now it is known that modern neural networks can be quite useful, but their computational expensiveness unfortunately remains. Statistical boosting is considered to be one of the most important machine learning ideas. It is based on an ensemble of weak models that together create a powerful learning system. The goal of this thesis is the comparison of these machine learning models on three use cases. The first use case deals with modeling the probability of burglary in the city of Chicago. The second use case is the typical example of customer churn prediction in telecommunication industry and the last use case is related to the problematic of the computer vision. The second goal of this thesis is to introduce an open-source machine learning platform called H2O. It includes, among other things, an interface for R and it is designed to run in standalone mode or on Hadoop. The thesis also includes the introduction into an open-source software library Apache Hadoop that allows for distributed processing of big data. Concretely into its open-source distribution Hortonworks Data Platform.
|
| |
| |
| |
|
Particle Systems
Šik, Martin ; Kmoch, Petr (referee) ; Pelikán, Josef (advisor)
In the present work I concern myself with the development of Particle systems library independent on any concrete graphical library. Particle systems are used in various graphical applications to render interesting e ects (for example: fi re, waterfall, smoke, explosions, etc.) which are nearly impossible to be rendered the same way as other ordinary objects in scene. Given the fact that this is very complex theme I choose to concentrate mostly on interactions between particles that would be fast enough for online rendering. For possible hard to compute interactions I allow saving calculated properties of particles and afterwards their fast playback. Because many moderns processors have more than one core some calculations in my library can run parallel in more threads.
|
|
ProArc - Open Source Solutions for Digital Documents Production and Archiving
Nezbedová, Martina
ProArc – the production and archiving system is freely available tool for producing and editing descriptive, technical and administrative metadata to digitized and born digital documents. The system allows you to create import data for the Kramerius system. One of the outputs are PSP packages created according to NDK standards of the National Library. ProArc system has been developed by the Library of the Academy of Sciences of the Czech Republic in collaboration with INCAD, which provides programming and analytical work. Since 2013, when the system was fully deployed in the Digitalization Centre of the Academy of Sciences Library, more than 400,000 pages of different types of documents have been processed . Currently, the system is also being implemented in other institutions. The archive section is being developed that will allow connection to the Archivematica system. ProArc will be presented from the perspective of the processor. ProArc system is one of the outputs of the Czech Digital Library project. The aim of the project is to create a single interface of digital libraries in the Czech Republic for end users and to provide data for international projects. The project is funded by the NAKI programme of the Ministry of Culture.
|
|
The Czech Digital Library - aggregation and dissemination of digital content from the Czech libraries
Lhoták, Martin
The goal of the Czech Digital Library is to aggregate content of digital libraries in the Czech Republic. It serves both as a common interface for end users and as a primary national data provider for other national and international projects, especially for Europeana and for the Central portal of the Czech libraries - KNIHOVNY.CZ. Tools to support complex digitization processes which include production, workflow monitoring, dissemination and archiving are developed as an open source in the frame of the project. The software solution for digital library - Kramerius system - is used in more than 30 libraries in the Czech Republic and provides access to tens of millions digital objects. ProArc - system compatible with national and international standards is used in several libraries for digital document production. With regard to the archival part of the solution, standards for long term archiving, such as the OAIS model, are implemented in cooperation with Archivematica system.
|
guest ::
