Search Results for author: Marcel Hoffmann

Found 7 papers, 3 papers with code

Radar-Based Recognition of Static Hand Gestures in American Sign Language

no code implementations20 Feb 2024 Christian Schuessler, Wenxuan Zhang, Johanna Bräunig, Marcel Hoffmann, Michael Stelzig, Martin Vossiek

This emphasizes the practicality of our methodology in overcoming data scarcity challenges and advancing the field of automatic gesture recognition in VR and HCI applications.

Hand Gesture Recognition Hand-Gesture Recognition +1

Open-World Lifelong Graph Learning

1 code implementation19 Oct 2023 Marcel Hoffmann, Lukas Galke, Ansgar Scherp

We study the problem of lifelong graph learning in an open-world scenario, where a model needs to deal with new tasks and potentially unknown classes.

Graph Learning Out of Distribution (OOD) Detection

Super-Resolution Radar Imaging with Sparse Arrays Using a Deep Neural Network Trained with Enhanced Virtual Data

1 code implementation16 Jun 2023 Christian Schuessler, Marcel Hoffmann, Martin Vossiek

The key to this performance is that the DNN is trained using realistic simulation data that perfectly mimic a given sparse antenna radar array hardware as the input.

Super-Resolution

Implementation of Real-Time Automotive SAR Imaging

no code implementations16 Jun 2023 Marcel Hoffmann, Theresa Noegel, Christian Schüßler, Lars Schwenger, Peter Gulden, Dietmar Fey, Martin Vossiek

This paper presents measures to reduce the computation time of automotive synthetic aperture radar (SAR) imaging to achieve real-time capability.

Achieving Efficient and Realistic Full-Radar Simulations and Automatic Data Annotation by exploiting Ray Meta Data of a Radar Ray Tracing Simulator

no code implementations23 May 2023 Christian Schüßler, Marcel Hoffmann, Vanessa Wirth, Björn Eskofier, Tim Weyrich, Marc Stamminger, Martin Vossiek

This approach allows not only almost perfect annotations possible, but also allows the annotation of exotic effects, such as multi-path effects or to label signal parts originating from different parts of an object.

Object

Lifelong Learning on Evolving Graphs Under the Constraints of Imbalanced Classes and New Classes

1 code implementation20 Dec 2021 Lukas Galke, Iacopo Vagliano, Benedikt Franke, Tobias Zielke, Marcel Hoffmann, Ansgar Scherp

The combination of these two challenges is particularly relevant since newly emerging classes typically resemble only a tiny fraction of the data, adding to the already skewed class distribution.

Graph Attention Graph Learning +2

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