7 papers
Representing and Detecting Label Ambiguity in IMU-Based Exercise Evaluation
Andreas Spilz, Heiko Oppel, Michael Munz
Home-based physiotherapy is performed without supervision, which leads to incorrect execution and motivates systems that assess movement automatically from inertial measurement uni…
Boosting Automatic Exercise Evaluation Through Musculoskeletal Simulation-Based IMU Data Augmentation
Andreas Spilz, Heiko Oppel, Michael Munz
Automated evaluation of movement quality can enhance physiotherapeutic treatment and sports training by providing objective, real-time feedback. However, deep learning models that…
Do We Really Need Diffusion? A Fast U-Net for Paired Medical Image Translation
Alicia Pirwass, Birte Glimm, Michael Munz +1
Magnetic resonance imaging-signal fat fraction (MRI-SFF) quantifies tissue fat and serves as an established biomarker for metabolic and musculoskeletal disorders. The acquisition r…
Sawtooth Sampling for Time Series Denoising Diffusion Implicit Models
Heiko Oppel, Andreas Spilz, Michael Munz
Denoising Diffusion Probabilistic Models (DDPMs) can generate synthetic timeseries data to help improve the performance of a classifier, but their sampling process is computational…
GAITEX: Human motion dataset of impaired gait and rehabilitation exercises using inertial and optical sensors
Andreas Spilz, Heiko Oppel, Jochen Werner +3
Wearable inertial measurement units (IMUs) provide a cost-effective approach to assessing human movement in clinical and everyday environments. However, developing the associated c…
Time Series Similarity Score Functions to Monitor and Interact with the Training and Denoising Process of a Time Series Diffusion Model applied to a Human Activity Recognition Dataset based on IMUs
Heiko Oppel, Andreas Spilz, Michael Munz
Denoising diffusion probabilistic models are able to generate synthetic sensor signals. The training process of such a model is controlled by a loss function which measures the dif…