Stefan Schmidt

ORCID: 0000-0003-2450-9795
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About
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Research Areas
  • Social and Demographic Issues in Germany
  • Health and Medical Studies
  • Machine Learning and Algorithms
  • Chronic Disease Management Strategies
  • Stochastic Gradient Optimization Techniques
  • Error Correcting Code Techniques
  • Glaucoma and retinal disorders
  • Social Policies and Healthcare Reform
  • Geriatric Care and Nursing Homes
  • Radiomics and Machine Learning in Medical Imaging
  • Optical Coherence Tomography Applications
  • Complexity and Algorithms in Graphs
  • Retinal Imaging and Analysis
  • Education Methods and Technologies
  • Psychiatric care and mental health services
  • Pelvic floor disorders treatments
  • Medical and Health Sciences Research
  • Pancreatic and Hepatic Oncology Research
  • Ocular Surface and Contact Lens
  • Medical Imaging Techniques and Applications
  • Medical Practices and Rehabilitation
  • Pain Management and Placebo Effect
  • Medical Image Segmentation Techniques
  • Advanced Radiotherapy Techniques
  • Medical Imaging and Pathology Studies

Heidelberg University
2009-2024

Neubrandenburg University of Applied Sciences
2015-2024

University of Freiburg
2024

Heidelberg Engineering (Germany)
2021

Martin Luther University Halle-Wittenberg
2016-2019

Klinikum rechts der Isar
2005-2016

Alice-Salomon-Hochschule Berlin
2015

Ludwig-Maximilians-Universität München
2010

University Medical Center Freiburg
2009

Technical University of Munich
2009

Abstract Meibomian glands (MG) are large sebaceous located below the tarsal conjunctiva and abnormalities of these cause gland dysfunction (MGD) which is responsible for evaporative dry eye disease (DED). Accurate MG segmentation a key prerequisite automated imaging based MGD related DED diagnosis. However, Automatic in infrared meibography challenging task due to image artifacts. A deep learning-based has been proposed directly learns features from training dataset without any...

10.1038/s41598-021-87314-8 article EN cc-by Scientific Reports 2021-04-07

We study the MAP-labeling problem for graphical models by optimizing a dual obtained Lagrangian decomposition. In this paper, we focus specifically on Nes-terov's optimal first-order optimization scheme non-smooth convex programs, that has been studied range of other problems in computer vision and machine learning recent years. show order to obtain an efficiently convergent iteration, approach should be augmented with dynamic estimation corresponding Lip-schitz constant, leading runtime...

10.1109/cvpr.2011.5995652 article EN 2011-06-01

We determined the ability of PET with thymidine analog 3'-deoxy-3'-(18)F-fluorothymidine ((18)F-FLT) to detect hepatocellular carcinoma (HCC).In this pilot study, (18)F-FLT was performed in 18 untreated patients clinically suspected HCC. Routine diagnostic procedures included ultrasound, MRI, or contrast-enhanced spiral CT upper gastrointestinal tract all patients. At 45-60 min after intravenous injection approximately 270-340 MBq (18)F-FLT, emission and transmission scanning a...

10.2967/jnumed.109.065896 article EN Journal of Nuclear Medicine 2009-08-18

We consider the linear programming relaxation of an energy minimization problem for Markov Random Fields. The dual objective this can be treated as a concave and unconstrained, but non-smooth function. idea smoothing prior to optimization was recently proposed in series papers. Some them suggested decrease amount (so called temperature) while getting closer optimum. However, no theoretical substantiation provided. propose adaptive diminishing algorithm based on duality gap between relaxed...

10.48550/arxiv.1210.4906 preprint EN other-oa arXiv (Cornell University) 2012-01-01

Background To date in Germany, only few studies have been conducted concerning the efficacy of care and case management ( CCM ) for older people about using communication technology during monitoring. Aim With this study, it is intended to gain a better understanding how general perceived by (65+) living alone particular what they think monitoring process used video conferences. Method The sampling work cycle were based on Grounded Theory. Two different subsamples (each n = 20; total sample:...

10.1111/scs.12691 article EN Scandinavian Journal of Caring Sciences 2019-04-17

This paper proposes a method for the construction of approximate feasible primal solutions from infeasible ones large-scale optimization problems possessing certain separability properties. Whereas estimates can typically be produced (sub-) gradients dual function, it is often not easy to project them set, since projection itself has complexity comparable initial problem. We propose an alternative efficient obtain feasibility and show that its properties influencing convergence optimum are...

10.1109/iccvw.2013.43 article EN IEEE International Conference on Computer Vision Workshops 2013-12-01

Many people report that they know in advance who is on the phone when telephone ringing. Sheldrake and Smart [1, 2] conducted experiments where participants had to determine which one of four possible callers while was still They highly significant hit rates cannot be explained by conventional theories.

10.2174/1874350100902010012 article EN cc-by The Open Psychology Journal 2009-04-02

Abstract Background In the period 2011 – 2013, 13 care support points were set up in Mecklenburg-West Pomerania. They are joint responsibility of all health and long-term insurance funds local government. Method Between July November data on organisation personnel collected respect their advisory staff. Questions asked about reasons for visiting a point, subject matter any counselling demographic users. Data using questionnaires interviews. Descriptive statistics used to analyse quantitative...

10.1515/ijhp-2016-0019 article EN cc-by-nc-nd International Journal of Health Professions 2016-07-29

Abstract Background In general, urinary and faecal incontinence is a multifaceted problem that associated with increasing burdens for those affected, massive impairment of quality life economic consequences. Incontinence high level shame, which in particular reduces the self-esteem being incontinent leads to additional vulnerability. Those affected by often perceive care they receiveas humiliating, hence can no longer control their own urination; nursing cleansing support then lead...

10.1186/s12877-023-04135-2 article EN cc-by BMC Geriatrics 2023-07-04

Abstract To review and summarize the available evidence on technology‐based nursing interventions for urinary incontinence. Scoping review. A of english German research articles published up to April 2024 examining in older people (> = 65 years) was conducted. Studies were retrieved by searching Medline electronic database via PubMed CINAHL database. Eight studies met inclusion criteria. The followed updated methodological guidance conduct scoping reviews 2020. three different types based...

10.1111/ijun.12409 article EN cc-by International Journal of Urological Nursing 2024-07-01
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