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Image reconstruction form projections
Gargulák, Dušan ; Kolář, Radim (referee) ; Jiřík, Radovan (advisor)
This semestral work deals with the principle of the image reconstruction from projections, which is the basis for the modern method of the RTG computed tomography (CT RTG). The work is above all focused on the Simple BackProjection and Filtered BackProjection. In the first part there are outlined theoretical principles, which explain Radon Transform and inverse Radon Transform. There is also cleared up the process of the Simple BackProjection. The next part of the work contains the practical aplications of Radon Transform and Simple BackProjection, which was made in MATLAB. There is described the script for the projection generating and the script for the Simple BackProjection process. As the last item there is annotated the graphic interface for the mentioned aplications.
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Measurement of sound fields using non-contact optical methods
Karásek, David ; Skalský, Michal (referee) ; Havránek, Zdeněk (advisor)
The purpose of this paper is to assemble measurement chain dedicated to contactless measuring of acoustic fields emitted by test sources and to validate its results. At first author discusses possible optic methods which can be used to measure acoustic fields, then he talks about theoretical foundations which are needed to measure data and to reconstruct final data. The last two chapters are dedicated to cover basics about created program and to analyse various aspects which influence measured and reconstructed data. Created measurement chain is fully functional, at the end of this thesis are proposed some ways of improving
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Measurement of sound fields using non-contact optical methods
Karásek, David ; Skalský, Michal (referee) ; Havránek, Zdeněk (advisor)
The purpose of this paper is to assemble measurement chain dedicated to contactless measuring of acoustic fields emitted by test sources and to validate its results. At first author discusses possible optic methods which can be used to measure acoustic fields, then he talks about theoretical foundations which are needed to measure data and to reconstruct final data. The last two chapters are dedicated to cover basics about created program and to analyse various aspects which influence measured and reconstructed data. Created measurement chain is fully functional, at the end of this thesis are proposed some ways of improving
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Image reconstruction form projections
Gargulák, Dušan ; Kolář, Radim (referee) ; Jiřík, Radovan (advisor)
This semestral work deals with the principle of the image reconstruction from projections, which is the basis for the modern method of the RTG computed tomography (CT RTG). The work is above all focused on the Simple BackProjection and Filtered BackProjection. In the first part there are outlined theoretical principles, which explain Radon Transform and inverse Radon Transform. There is also cleared up the process of the Simple BackProjection. The next part of the work contains the practical aplications of Radon Transform and Simple BackProjection, which was made in MATLAB. There is described the script for the projection generating and the script for the Simple BackProjection process. As the last item there is annotated the graphic interface for the mentioned aplications.
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