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6 papers · 1 filter

math.NA2026

Generalized Modulo Hysteresis Encoding

Matthias Beckmann, Jürgen Jeschke

Unlimited sensing and its extension via modulo hysteresis provide an efficient encoding scheme for high dynamic range signals by folding the signal's amplitude into the range of th…

math.NA2026

Generalizations of the Normalized Radon Cumulative Distribution Transform for Limited Data Recognition

Matthias Beckmann, Robert Beinert, Jonas Bresch

The Radon cumulative distribution transform (R-CDT) exploits one-dimensional Wasserstein transport and the Radon transform to represent prominent features in images. It is closely…

math.NA2025

Normalized Radon Cumulative Distribution Transforms for Invariance and Robustness in Optimal Transport Based Image Classification

Matthias Beckmann, Robert Beinert, Jonas Bresch

The Radon cumulative distribution transform (R-CDT), is an easy-to-compute feature extractor that facilitates image classification tasks especially in the small data regime. It is…

math.NA2025

Orthogonal Matching Pursuit based Reconstruction for Modulo Hysteresis Operators

Matthias Beckmann, Jürgen Jeschke

Unlimited sampling provides an acquisition scheme for high dynamic range signals by folding the signal into the dynamic range of the analog-to-digital converter (ADC) using modulo…

math.NA2024

Max-Normalized Radon Cumulative Distribution Transform for Limited Data Classification

Matthias Beckmann, Robert Beinert, Jonas Bresch

The Radon cumulative distribution transform (R-CDT) exploits one-dimensional Wasserstein transport and the Radon transform to represent prominent features in images. It is closely…

math.NA2024

Optimized filter functions for filtered back projection reconstructions

Matthias Beckmann, Judith Nickel

The method of filtered back projection (FBP) is a widely used reconstruction technique in X-ray computerized tomography (CT), which is particularly important in clinical diagnostic…