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Volume data fusions
Gróf, Szabolcs ; Pelikán, Josef (advisor) ; Felkel, Petr (referee)
In the present work we study the methods of volumetric data fusion. The thesis starts by explaining the basic physical principles of selected medical image acquisition methods - Computed Tomography, Magnetic Resonance Imaging and Positron Emission Tomography. This is followed by a basic overview of the organization and format of the processed data. In the next part, the thesis deals with the theoretical and mathematical background of image registration. This includes the explanation of different types of transformations, the different types of interpolation used by the transformation, the mutual information criterion for the alignment of images and the process of optimization. The discussion of fusion visualization methods comes next where 13 methods are explained and example image outputs are provided. The next chapter describes the implementation details of the practical part of the thesis by explaining the two main components of the program: the registration filter component and the fusion visualization viewer component. UML diagrams are shown and the purpose and function of the classes of these components are described in detail. The thesis is closed by the user manual of the demonstrating program and a conclusion of the described methods, which also discusses possible future improvements.
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STalk - zabezpečená aplikace pro komunikaci
Gróf, Szabolcs ; Forst, Libor (advisor) ; Lukeš, Dan (referee)
In the present work we study the methods of using cryptographic algorithms to ensure the security of communication over computer networks and give a new perspective on the classic UNIX console chat program called talk. The thesis starts by describing the various protocols of the TCP/IP protocol suite, and also gives a brief description of how these protocols are used from the viewpoint of a UNIX programmer. It is followed by a cryptographic overview, mainly the description of the RSA and DES algorithms. Finally, the program's implementation and usage is described.
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STalk - zabezpečená aplikace pro komunikaci
Gróf, Szabolcs ; Lukeš, Dan (referee) ; Forst, Libor (advisor)
In the present work we study the methods of using cryptographic algorithms to ensure the security of communication over computer networks and give a new perspective on the classic UNIX console chat program called talk. The thesis starts by describing the various protocols of the TCP/IP protocol suite, and a brief cryptographic overview. The following part describes the architecture of stalk. Finally, the program's implementation and usage is described.
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STalk - zabezpečená aplikace pro komunikaci
Gróf, Szabolcs ; Forst, Libor (advisor) ; Lukeš, Dan (referee)
In the present work we study the methods of using cryptographic algorithms to ensure the security of communication over computer networks and give a new perspective on the classic UNIX console chat program called talk. The thesis starts by describing the various protocols of the TCP/IP protocol suite, and also gives a brief description of how these protocols are used from the viewpoint of a UNIX programmer. It is followed by a cryptographic overview, mainly the description of the RSA and DES algorithms. Finally, the program's implementation and usage is described.
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Volume data fusions
Gróf, Szabolcs ; Felkel, Petr (referee) ; Pelikán, Josef (advisor)
In the present work we study the methods of volumetric data fusion. The thesis starts by explaining the basic physical principles of selected medical image acquisition methods - Computed Tomography, Magnetic Resonance Imaging and Positron Emission Tomography. This is followed by a basic overview of the organization and format of the processed data. In the next part, the thesis deals with the theoretical and mathematical background of image registration. This includes the explanation of different types of transformations, the different types of interpolation used by the transformation, the mutual information criterion for the alignment of images and the process of optimization. The discussion of fusion visualization methods comes next where 13 methods are explained and example image outputs are provided. The next chapter describes the implementation details of the practical part of the thesis by explaining the two main components of the program: the registration filter component and the fusion visualization viewer component. UML diagrams are shown and the purpose and function of the classes of these components are described in detail. The thesis is closed by the user manual of the demonstrating program and a conclusion of the described methods, which also discusses possible future improvements.
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