Ph.D. Gallery

Browse all posts in the Ph.D. Gallery category.

103 to 106 of 106

02SEP 2009
Ph.D. Gallery
Marcus Prümmer
Cardiac C-Arm Computed Tomography: Motion Estimation and Dynamic Reconstruction Abstract Generating three dimensional images of the heart during interventional procedures is a significant challenge. In addition to real-time fluoroscopy, angiographic C-arm systems can also be used to generate 3-D/4-D CT images on the same system. One protocol for cardiac Computed Tomography (CT) uses electrocardiogram (ECG) […]Cardiac C-Arm Computed Tomography: Motion Estimation and Dynamic Reconstruction Abstract Generating three dimensional images of the heart during interventional procedures is a significant challenge. In addition to real-time fluoroscopy, angiographic C-arm systems can also be used to generate 3-D/4-D CT images on the same system. One protocol for cardiac Computed Tomography (CT) uses electrocardiogram (ECG) […]
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05JAN 2009
Ph.D. Gallery
Andreas Maier
Speech of children with Cleft Lip and Palate: Automatic Assessment Abstract This work investigates the use of automatic speech processing techniques for the automatic assessment of children’s speech disorders. The target group were children with cleft lip and palate (CLP). The speech processing techniques are applied to evaluate the children’s speech intelligibility and their articulation. […]Speech of children with Cleft Lip and Palate: Automatic Assessment Abstract This work investigates the use of automatic speech processing techniques for the automatic assessment of children’s speech disorders. The target group were children with cleft lip and palate (CLP). The speech processing techniques are applied to evaluate the children’s speech intelligibility and their articulation. […]
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04DEC 2008
Ph.D. Gallery
Frank Dennerlein
Image Reconstruction from Fan-Beam and Cone-Beam Projections Abstract This thesis addresses the problem of reconstructing static objects in 2D and 3D transmission computed tomography (CT). After reviewing the classical CT reconstruction theory, we discuss and thoroughly evaluate various novel reconstruction methods, two of which are original. Our first original approach is for 2D CT reconstruction […]Image Reconstruction from Fan-Beam and Cone-Beam Projections Abstract This thesis addresses the problem of reconstructing static objects in 2D and 3D transmission computed tomography (CT). After reviewing the classical CT reconstruction theory, we discuss and thoroughly evaluate various novel reconstruction methods, two of which are original. Our first original approach is for 2D CT reconstruction […]
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04DEC 2008
Ph.D. Gallery
Stefan Hoppe
Accurate Cone-Beam Image Reconstruction in C-Arm Computed Tomography Abstract The goal of this thesis is the robust implementation of an accurate cone-beam image reconstruction algorithm such that it is able to process real C-arm data from a circle-plus-arc trajectory. This trajectory is complete and especially well suited for C-arm systems, since it can be performed […]
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