Stefania Petra

According to our database, Stefania Petra authored at least 53 papers between 2003 and 2024.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of three.

2024

Sigma Flows for Image and Data Labeling and Learning Structured Prediction.

Jonas Cassel, Bastian Boll, Stefania Petra, Peter Albers, Christoph Schnörr

CoRR, 2024

Generative Assignment Flows for Representing and Learning Joint Distributions of Discrete Data.

Bastian Boll, Daniel Gonzalez-Alvarado, Stefania Petra, Christoph Schnörr

CoRR, 2024

A Geometric Embedding Approach to Multiple Games and Multiple Populations.

Bastian Boll, Jonas Cassel, Peter Albers, Stefania Petra, Christoph Schnörr

CoRR, 2024

Accelerated Bregmann divergence optimization with SMART: an information geometry point of view.

Maren Raus, Yara Elshiaty, Stefania Petra

CoRR, 2024

2023

Learning Linearized Assignment Flows for Image Labeling.

Alexander Zeilmann, Stefania Petra, Christoph Schnörr

J. Math. Imaging Vis., January, 2023

On the Remarkable Efficiency of SMART.

Max Kahl, Stefania Petra, Christoph Schnörr, Gabriele Steidl, Matthias Zisler

Proceedings of the Scale Space and Variational Methods in Computer Vision, 2023

Modeling Large-Scale Joint Distributions and Inference by Randomized Assignment.

Bastian Boll, Jonathan Schwarz, Daniel Gonzalez-Alvarado, Dmitrij Sitenko, Stefania Petra, Christoph Schnörr

Proceedings of the Scale Space and Variational Methods in Computer Vision, 2023

2022

Multi-level Geometric Optimization for Regularised Constrained Linear Inverse Problems.

Sebastian Müller, Stefania Petra, Matthias Zisler

CoRR, 2022

Self-Certifying Classification by Linearized Deep Assignment.

Bastian Boll, Alexander Zeilmann, Stefania Petra, Christoph Schnörr

CoRR, 2022

Learning Features via Transformer Networks for Cardiomyocyte Profiling.

Jan Plier, Matthias Zisler, Jennifer Furkel, Maximilian Knoll, Alexander Marx, Alena Fischer, Kai Polsterer, Mathias H. Konstandin, Stefania Petra

Proceedings of the Bildverarbeitung für die Medizin 2022, 2022

2021

Learning Adaptive Regularization for Image Labeling Using Geometric Assignment.

Ruben Hühnerbein, Fabrizio Savarino, Stefania Petra, Christoph Schnörr

J. Math. Imaging Vis., 2021

Learning Linear Assignment Flows for Image Labeling via Exponential Integration.

Alexander Zeilmann, Stefania Petra, Christoph Schnörr

Proceedings of the Scale Space and Variational Methods in Computer Vision, 2021

First-Order Geometric Multilevel Optimization for Discrete Tomography.

Jan Plier, Fabrizio Savarino, Michal Kocvara, Stefania Petra

Proceedings of the Scale Space and Variational Methods in Computer Vision, 2021

2020

Self-Assignment Flows for Unsupervised Data Labeling on Graphs.

Matthias Zisler, Artjom Zern, Stefania Petra, Christoph Schnörr

SIAM J. Imaging Sci., 2020

Unsupervised Assignment Flow: Label Learning on Feature Manifolds by Spatially Regularized Geometric Assignment.

Artjom Zern, Matthias Zisler, Stefania Petra, Christoph Schnörr

J. Math. Imaging Vis., 2020

Multi-Channel Potts-Based Reconstruction for Multi-Spectral Computed Tomography.

Lukas Kiefer, Stefania Petra, Martin Storath, Andreas Weinmann

CoRR, 2020

2019

Superiorization vs. Accelerated Convex Optimization: The Superiorized/Regularized Least-Squares Case.

Yair Censor, Stefania Petra, Christoph Schnörr

CoRR, 2019

Unsupervised Labeling by Geometric and Spatially Regularized Self-assignment.

Matthias Zisler, Artjom Zern, Stefania Petra, Christoph Schnörr

Proceedings of the Scale Space and Variational Methods in Computer Vision, 2019

Direct MRI Segmentation from k-Space Data by Iterative Potts Minimization.

Lukas Kiefer, Stefania Petra, Martin Storath, Andreas Weinmann

Proceedings of the Scale Space and Variational Methods in Computer Vision, 2019

2018

Performance Bounds For Co-/Sparse Box Constrained Signal Recovery.

Jan Kuske, Stefania Petra

CoRR, 2018

Unsupervised Label Learning on Manifolds by Spatially Regularized Geometric Assignment.

Artjom Zern, Matthias Zisler, Freddie Åström, Stefania Petra, Christoph Schnörr

Proceedings of the Pattern Recognition - 40th German Conference, 2018

2017

Erratum to: Single projection Kaczmarz extended algorithms.

Stefania Petra, Constantin Popa

Numer. Algorithms, 2017

Image Labeling by Assignment.

Freddie Åström, Stefania Petra, Bernhard Schmitzer, Christoph Schnörr

J. Math. Imaging Vis., 2017

Image Reconstruction by Multilabel Propagation.

Matthias Zisler, Freddie Åström, Stefania Petra, Christoph Schnörr

Proceedings of the Scale Space and Variational Methods in Computer Vision, 2017

Graphical Model Parameter Learning by Inverse Linear Programming.

Vera Trajkovska, Paul Swoboda, Freddie Åström, Stefania Petra

Proceedings of the Scale Space and Variational Methods in Computer Vision, 2017

A Novel Convex Relaxation for Non-binary Discrete Tomography.

Jan Kuske, Paul Swoboda, Stefania Petra

Proceedings of the Scale Space and Variational Methods in Computer Vision, 2017

Performance Bounds for Cosparse Multichannel Signal Recovery via Collaborative-TV.

Lukas Kiefer, Stefania Petra

Proceedings of the Scale Space and Variational Methods in Computer Vision, 2017

Compressed Motion Sensing.

Robert Dalitz, Stefania Petra, Christoph Schnörr

Proceedings of the Scale Space and Variational Methods in Computer Vision, 2017

Gradient Flows on a Riemannian Submanifold for Discrete Tomography.

Matthias Zisler, Fabrizio Savarino, Stefania Petra, Christoph Schnörr

Proceedings of the Pattern Recognition - 39th German Conference, 2017

A Local Spatio-Temporal Approach to Plane Wave Ultrasound Particle Image Velocimetry.

Ecaterina Bodnariuc, Stefania Petra, Christoph Schnörr, Jason D. Voorneveld

Proceedings of the Pattern Recognition - 39th German Conference, 2017

2016

Non-Binary Discrete Tomography by Continuous Non-Convex Optimization.

Matthias Zisler, Jörg Hendrik Kappes, Claudius Schnörr, Stefania Petra, Christoph Schnörr

IEEE Trans. Computational Imaging, 2016

Single projection Kaczmarz extended algorithms.

Stefania Petra, Constantin Popa

Numer. Algorithms, 2016

A Geometric Approach to Image Labeling.

Freddie Åström, Stefania Petra, Bernhard Schmitzer, Christoph Schnörr

Proceedings of the Computer Vision - ECCV 2016, 2016

Discrete Tomography by Continuous Multilabeling Subject to Projection Constraints.

Matthias Zisler, Stefania Petra, Claudius Schnörr, Christoph Schnörr

Proceedings of the Pattern Recognition - 38th German Conference, 2016

Parametric Dictionary-Based Velocimetry for Echo PIV.

Ecaterina Bodnariuc, Stefania Petra, Christian Poelma, Christoph Schnörr

Proceedings of the Pattern Recognition - 38th German Conference, 2016

The Assignment Manifold: A Smooth Model for Image Labeling.

Freddie Åström, Stefania Petra, Bernhard Schmitzer, Christoph Schnörr

Proceedings of the 2016 IEEE Conference on Computer Vision and Pattern Recognition Workshops, 2016

2015

Optical Flow.

Florian Becker, Stefania Petra, Christoph Schnörr

Proceedings of the Handbook of Mathematical Methods in Imaging, 2015

TomoGC: Binary Tomography by Constrained GraphCuts.

Jörg Hendrik Kappes, Stefania Petra, Christoph Schnörr, Matthias Zisler

Proceedings of the Pattern Recognition - 37th German Conference, 2015

2014

Phase Transitions and Cosparse Tomographic Recovery of Compound Solid Bodies from Few Projections.

Andreea Denitiu, Stefania Petra, Claudius Schnörr, Christoph Schnörr

Fundam. Informaticae, 2014

Adaptive Dictionary-Based Spatio-temporal Flow Estimation for Echo PIV.

Ecaterina Bodnariuc, Arati Gurung, Stefania Petra, Christoph Schnörr

Proceedings of the Energy Minimization Methods in Computer Vision and Pattern Recognition, 2014

An Entropic Perturbation Approach to TV-Minimization for Limited-Data Tomography.

Andreea Denitiu, Stefania Petra, Claudius Schnörr, Christoph Schnörr

Proceedings of the Discrete Geometry for Computer Imagery, 2014

2013

Critical Parameter Values and Reconstruction Properties of Discrete Tomography: Application to Experimental Fluid Dynamics.

Stefania Petra, Christoph Schnörr, Andreas Schröder

Fundam. Informaticae, 2013

A class of quasi-variational inequalities for adaptive image denoising and decomposition.

Frank Lenzen, Florian Becker, Jan Lellmann, Stefania Petra, Christoph Schnörr

Comput. Optim. Appl., 2013

B-SMART: Bregman-Based First-Order Algorithms for Non-negative Compressed Sensing Problems.

Stefania Petra, Christoph Schnörr, Florian Becker, Frank Lenzen

Proceedings of the Scale Space and Variational Methods in Computer Vision, 2013

2012

Corrections to "Variational Adaptive Correlation Method for Flow Estimation".

Florian Becker, Bernhard Wieneke, Stefania Petra, Andreas Schröder, Christoph Schnörr

IEEE Trans. Image Process., 2012

Variational Adaptive Correlation Method for Flow Estimation.

Florian Becker, Bernhard Wieneke, Stefania Petra, Andreas Schröder, Christoph Schnörr

IEEE Trans. Image Process., 2012

A general extending and constraining procedure for linear iterative methods.

Aurelian Nicola, Stefania Petra, Constantin Popa, Christoph Schnörr

Int. J. Comput. Math., 2012

Average Case Recovery Analysis of Tomographic Compressive Sensing

Stefania Petra, Christoph Schnörr

CoRR, 2012

2011

Variational Image Denoising with Adaptive Constraint Sets.

Frank Lenzen, Florian Becker, Jan Lellmann, Stefania Petra, Christoph Schnörr

Proceedings of the Scale Space and Variational Methods in Computer Vision, 2011

2008

On Sparsity Maximization in Tomographic Particle Image Reconstruction.

Stefania Petra, Andreas Schröder, Bernhard Wieneke, Christoph Schnörr

Proceedings of the Pattern Recognition, 2008

2007

Projected filter trust region methods for a semismooth least squares formulation of mixed complementarity problems.

Christian Kanzow, Stefania Petra

Optim. Methods Softw., 2007

2004

On a semismooth least squares formulation of complementarity problems with gap reduction.

Christian Kanzow, Stefania Petra

Optim. Methods Softw., 2004

2003

Developing a computeized simulator for Endoscopic Ultarasound.

Stefania Petra, Alexandra Schaeffer, Albert Schaeffer, Sagi Nachum, Tal Guterman, Alex Shaharit, Ury Zhilinsky, Mira Barki

Proceedings of the CARS 2003. Computer Assisted Radiology and Surgery. Proceedings of the 17th International Congress and Exhibition, 2003