Ph.D. Gallery

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

49 to 54 of 106

11SEP 2017
Ph.D. Gallery
Thomas Köhler
Multi-Frame Super-Resolution Reconstruction with Applications to Medical Imaging Abstract The optical resolution of a digital camera is one of its most crucial parameters with broad relevance for consumer electronics, surveillance systems, remote sensing, or medical imaging. However, resolution is physically limited by the optics and sen- sor characteristics. In addition, practical and economic reasons often […]Multi-Frame Super-Resolution Reconstruction with Applications to Medical Imaging Abstract The optical resolution of a digital camera is one of its most crucial parameters with broad relevance for consumer electronics, surveillance systems, remote sensing, or medical imaging. However, resolution is physically limited by the optics and sen- sor characteristics. In addition, practical and economic reasons often […]
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29MAY 2017
Ph.D. Gallery
Mathias Unberath
Signal Processing for Interventional X-ray-based Coronary Angiography Abstract Rotational angiography using C-arm scanners enables intra-operative 3-D imaging that has proved beneficial for diagnostic assessment and interventional guidance. Despite previous efforts, rotational angiography was not yet successfully established in clinical practice for coronary artery imaging but remains subject of intensive academic research. 3-D reconstruction of the […]Signal Processing for Interventional X-ray-based Coronary Angiography Abstract Rotational angiography using C-arm scanners enables intra-operative 3-D imaging that has proved beneficial for diagnostic assessment and interventional guidance. Despite previous efforts, rotational angiography was not yet successfully established in clinical practice for coronary artery imaging but remains subject of intensive academic research. 3-D reconstruction of the […]
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15MAY 2017
Ph.D. Gallery
Johannes Jordan
Interactive Analysis of Multispectral and Hyperspectral Image Data Abstract A multispectral or hyperspectral sensor captures images of high spectral resolution by dividing the light spectrum into many narrow bands. With the advent of affordable and flexible sensors, the modality is constantly widening its range of applications. This necessitates novel tools that allow general and intuitive […]
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28MAR 2017
Ph.D. Gallery
Christoph Forman
Iterative Reconstruction Methods to Reduce Respiratory Motion Artifacts in Cartesian Coronary MRI Abstract Cardiovascular diseases and coronary artery disease (CAD) in particular are the leading cause of death in most developed countries worldwide. Although CAD progresses slowly over several years, it often remains unnoticed and may lead to myocardial infarction in a sudden event. For […]
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29DEC 2016
Ph.D. Gallery
Martin Kraus
Motion Correction and Signal Enhancement in Optical Coherence Tomography Abstract Optical Coherence Tomography (OCT) is a non-invasive optical imaging modality with micron scale resolution and the ability to generate 2D and 3D images of the human retina. OCT has found widespread use in ophthalmology. However, motion artifacts induced by the scanning nature restrict the ability […]
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16DEC 2016
Ph.D. Gallery
Florian Hönig
Automatic Assessment of Prosody in Second Language Learning Abstract The present thesis studies methods for automatically assessing the prosody of non-native speakers for the purpose of computer-assisted pronunciation training. We study the detection of word accent errors, and the general assessment of the appropriateness of a speaker’s rhythm. We propose a flexible, generic approach that […]
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