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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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CT X-ray quantitative evaluation
Novotný, Lukáš ; Malínský, Miloš (referee) ; Drastich, Aleš (advisor)
X-Ray Computed Tomography is irreplaceable medical imaging system. Quantitative evaluation is day to day routine used for clean run of this imaging system. The master’s thesis is focused on quantitative evaluation of first and third generation X-Ray CT. First of all is about subjective and objective evaluation of space and energetic resolution. Space resolution is evaluated in space and frequency domain. Energetic resolution is represent by low contrast resolution method. Application “Kvantitativní hodnocení kvality CT RTG zobrazení” created for this thesis is used for creation of reconstruction image and quantitative evaluation. This application was created with consideration of its usage in subjects about image processing. The master’s thesis contains results of quantitative evaluation X-Ray CT created with this application and proposal of lab work.
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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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CT X-ray quantitative evaluation
Novotný, Lukáš ; Malínský, Miloš (referee) ; Drastich, Aleš (advisor)
X-Ray Computed Tomography is irreplaceable medical imaging system. Quantitative evaluation is day to day routine used for clean run of this imaging system. The master’s thesis is focused on quantitative evaluation of first and third generation X-Ray CT. First of all is about subjective and objective evaluation of space and energetic resolution. Space resolution is evaluated in space and frequency domain. Energetic resolution is represent by low contrast resolution method. Application “Kvantitativní hodnocení kvality CT RTG zobrazení” created for this thesis is used for creation of reconstruction image and quantitative evaluation. This application was created with consideration of its usage in subjects about image processing. The master’s thesis contains results of quantitative evaluation X-Ray CT created with this application and proposal of lab work.
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