Ph.D. Gallery

Multimodal Assessment of Parkinson's Disease Patients using Information from Speech, Handwriting, and Gait

Advanced 3-D Reconstruction of Talbot-Lau Data X-ray imaging is a standard technique for examinations and interventions in medicine. Based on X-rays, Phase-Contrast Imaging (PCI) can provide an excellent soft-tissue contrast. The most promising setup for measuring phase-contrast in a medical co...

Log File Processing - Changes, Challenges, and Chance Log files are plain text files written by any modern computer system. Their content is determined by logging statements during software development. Thus, any kind of event can be collected during runtime. As a result, logs contain a wealth o...

Analysis of Pathological Speech Signals The present thesis addresses the automatic analysis of speech disorders resulting from Parkinson's disease and hearing loss.For Parkinson's disease, the progression of speech symptoms is evaluated considering speech recordings captured in the short-term (4...

Using Contextual Information to Process Out-of-Vocabulary Words in Spoken Dialog Systems Speech is a very efficient channel for communication, but it is a challenge to cope with words which are unknown to one of the dialogue partners. Human beings are very good at dealing with words that are not...

Point-based Registration of Vascular Structures: Applications for Diagnostic and Interventional Procedures With the introduction of computer-aided methods for diagnosis and intervention, patient outcomes of many clinical procedures have been increased tremendously in the last decades. An essenti...

Quantitative Biomarkers for Abdominal Magnetic Resonance Imaging The global prevalence of various metabolic pathologies, such as the metabolic syndrome, obesity, diabetes or nonalcoholic fatty liver disease (NAFLD) has increased steadily in recent decades, and takes on the proportions of a world...

Deep Learning-based Cell Detection in Microscopy Images In recent years, classical pathology has been in a constant state of change towards digital pathology. Digitisation forms the basis for supporting the work of pathologists in many ways by utilising computer-assisted methods. Among other thi...

Hyperspectral Image Analysis using Limited Data This thesis studies the use case of hyperspectral images in two applications, namely remote sensing and art history. The common challenge that is present in both these applications is the limited availability of labeled data. This limitation is cau...

Acquisition and Reconstruction Methods for Multidimensional and Quantitative MRI Magnetic Resonance Imaging (MRI) is a tomographic imaging technique using the principles of nuclear magnetism of mostly the hydrogen nuclei, which are largely contained in the human body. This allows for insights t...