Search Results for author: Felix Ambellan

Found 5 papers, 3 papers with code

Sasaki Metric for Spline Models of Manifold-Valued Trajectories

1 code implementation30 Mar 2023 Esfandiar Nava-Yazdani, Felix Ambellan, Martin Hanik, Christoph von Tycowicz

We propose a generic spatiotemporal framework to analyze manifold-valued measurements, which allows for employing an intrinsic and computationally efficient Riemannian hierarchical model.


Landmark-free Statistical Shape Modeling via Neural Flow Deformations

1 code implementation14 Sep 2022 David Lüdke, Tamaz Amiranashvili, Felix Ambellan, Ivan Ezhov, Bjoern Menze, Stefan Zachow

Statistical shape modeling aims at capturing shape variations of an anatomical structure that occur within a given population.

Image Segmentation Semantic Segmentation

Rigid Motion Invariant Statistical Shape Modeling based on Discrete Fundamental Forms

no code implementations5 Nov 2021 Felix Ambellan, Stefan Zachow, Christoph von Tycowicz

shape-based classification of pathological malformations of the human knee and show that it outperforms the standard Euclidean as well as a recent nonlinear approach especially in presence of sparse training data.

Hippocampus Specificity

Geodesic B-Score for Improved Assessment of Knee Osteoarthritis

no code implementations12 Mar 2021 Felix Ambellan, Stefan Zachow, Christoph von Tycowicz

Three-dimensional medical imaging enables detailed understanding of osteoarthritis structural status.

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