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Web applications supporting education of audio signal processing
Malcher, Tomáš ; Mokrý, Ondřej (referee) ; Rajmic, Pavel (advisor)
This bachelors thesis deals with a creation of web applications using JavaScript language. These web applications should be helpful in signal processing classes by showing and explaining different phenomenons to students. Students can see how different parameters affect the outcome of said issue. The theory needed for understanding and implementation is covered by this thesis. Thesis covers key parts of the code of said web applications and the libraries used for their implementaition.
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Analysis of Time-Varying Spectrum of Pianos
Smělý, Pavel ; Rajmic, Pavel (referee) ; Jirásek, Ondřej (advisor)
This work focuses on an analysis of a time-varying spectrum of pianos. The beginning of the work deals with the gradual evolution of the piano, aiming at timbre and design, and it analyzes in detail its individual parts and their influence on the sound spectrum. The theoretical part also concentrates on the issue of harmonic analysis in both the musical conception of timber and the usage of mathematical signal processing methods that make this analysis possible. Another part deals with practical tasks of the work such as a description of an application and functions created in the interface of MATLAB for exploring the time-varying spectrum of tones, description of the method and procedure of the measuring of three concert grand pianos. The work also analyzes, by supporting it with practical examples and by comparing the measured pianos, the most important acoustic phenomena that originate from the production of tones in the instrument; it describes the timber of individual instruments, and it gives recommendations.
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Interactive web applications for support of teaching signal processing
Mašek, Petr ; Rajmic, Pavel (referee) ; Záviška, Pavel (advisor)
The bachelor thesis deals with the topic of processing one-dimensional signals. Five interactive web applications have been created in JavaScript to support teaching. These are applets that relate to the following topics: rational number resampling of the discrete signal, mean and root mean square signal values, discrete linear and circular convolution in 1D, and discrete cross correlation. The thesis introduces each topic by a theoretical foreword, followed by description of implementation and user interface of the created applications and further there is a commentary on the development and testing of applets.
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Education-supporting interactive applets
Korbel, Jakub ; Mekyska, Jiří (referee) ; Rajmic, Pavel (advisor)
This bachelor theses is focused to the support of education in branch of image processing. The teoretic part deals with mathematics view to this problematic. The pratical part is focused to creating of web applets (tools for supporting of education) - applets Gamma correction, Rate shape, Bit plane, Numeric minimization convex function.
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Modern coding of speech signals using overcomplete models
Zapletal, Ondřej ; Průša, Zdeněk (referee) ; Rajmic, Pavel (advisor)
The theoretical contents of this thesis are studies of overcomplete models. Those are the models of signals, on which is set for their parametrization more variables, than it's necessary and consequently there's computed so-called sparse solution via iteration algorithms. A goal of this analysis is a selection just of the considerable (sparse) parameters. The theory is based on a linear algebra, vector spaces, bases and so-called frames. The task of the individual project of this thesis is a description and simulation of two speech coders: a classical coder based on linear predictive speech coding and a coder, that's making use of overcomplete stochastic ARMA processes models. A part of their realization is to simulate their decoders and a analyze their reconstruction quality. For their realization there is used MATLAB and an overcomplete models' library (toolbox frames).
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Usage of parallel computing in MATLAB for image processing
Prišť, Lukáš ; Rajmic, Pavel (referee) ; Špiřík, Jan (advisor)
This thesis examines the use of parallel MATLAB programing for image processing using available libraries and functions. The theoretical part compares the differences between the parallel and the usual sequential approach, different kinds of parallelization, the need for change of communication in parallel systems. This is later used for implementing parallel functions and comparing their effectivity to their sequential counterparts.
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Selected algorithms for colour control
Karásek, Michal ; Průša, Zdeněk (referee) ; Rajmic, Pavel (advisor)
The Bachelor's thesis work follows the selected algorithms of the colour management. In the first part it adverts to the basis of the colour perception itself and explains the top important notion - colour event. Further it follows the issue of colour utilization in the computers and individual colour models. It deals with colour management, in the concrete by a transfer of gamuts from one facility to another one. In the next part the implementation of ICC profiles is analyzed, as well as the comparison of single methods of the gamut transfer and practical utilization of these transfers in computer programme Matlab.
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