Stefan Horst Sommer
Professor
Image Analysis, Computational Modelling and Geometry
Universitetsparken 1
2100 København Ø
Investigation of the adaptability of transient stability assessment methods to real-time operation
Weckesser, T., Johannsson, H., Sommer, Stefan Horst & Østergaard, J., 2012, 2012 3rd IEEE PES International Conference and Exhibition on Innovative Smart Grid Technologies (ISGT Europe). IEEE, s. 1-9 9 s.Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
- Udgivet
On restricting planar curve evolution to finite dimensional implicit subspaces with non-Euclidean metric
Tatu, A. J., Lauze, Francois Bernard, Sommer, Stefan Horst & Nielsen, Mads, 2010, I: Journal of Mathematical Imaging and Vision. 38, 3, s. 226-240 15 s.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › fagfællebedømt
- Udgivet
Atlas generative models and geodesic interpolation
Stolberg-Larsen, J. & Sommer, Stefan Horst, 2022, I: Image and Vision Computing. 122, 23 s., 104433.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › fagfællebedømt
- Udgivet
Generalizations of Ripley's K-function with Application to Space Curves
Sporring, Jon, Waagepetersen, R. P. & Sommer, Stefan Horst, 2018, arXiv.org. 9 s.Publikation: Bog/antologi/afhandling/rapport › Rapport
- Udgivet
Generalizations of Ripley’s K-function with Application to Space Curves
Sporring, Jon, Waagepetersen, R. P. & Sommer, Stefan Horst, jun. 2019, Information Processing in Medical Imaging - 26th International Conference, IPMI 2019, Hong Kong, China, 2019, Proceedings: 26th International Conference, IPMI 2019, Hong Kong, China, June 2–7, 2019, Proceedings. Springer, s. 731-742 (Lecture Notes in Computer Science, Bind 11492).Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
- Udgivet
Probabilistic approaches to geometric statistics: Stochastic processes, transition distributions, and fiber bundle geometry
Sommer, Stefan Horst, 2020, Riemannian Geometric Statistics in Medical Image. Pennec, X., Sommer, S. & Fletcher, T. (red.). Academic Press, s. 377-416Publikation: Bidrag til bog/antologi/rapport › Bidrag til bog/antologi › Forskning › fagfællebedømt
- Udgivet
Bridge simulation and metric estimation on landmark manifolds
Sommer, Stefan Horst, Arnaudon, A., Kühnel, L. & Joshi, S., 2017, Graphs in Biomedical Image Analysis, Computational Anatomy and Imaging Genetics: First International Workshop, GRAIL 2017, 6th International Workshop, MFCA 2017, and Third International Workshop, MICGen 2017, Held in Conjunction with MICCAI 2017, Québec City, QC, Canada, September 10–14, 2017, Proceedings. Cardoso, J., Arbel, T., Ferrante, E., Pennec, X., Dalca, A., Parisot, S., Batmanghelich, N. K., Sotiras, A., Nielsen, M., Sabuncu, M. R., Fletcher, T., Shen, L., Durrleman, S. & Sommer, S. (red.). Springer, s. 79-91 13 s. (Lecture notes in computer science, Bind 10551).Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
- Udgivet
Accelerating multi-scale flows for LDDKBM diffeomorphic registration
Sommer, Stefan Horst, 2011, 2011 IEEE International Conference on Computer Vision Workshops (ICCV Workshops). IEEE, s. 499-505 7 s.Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
- Udgivet
Horizontal dimensionality reduction and iterated frame bundle development
Sommer, Stefan Horst, 2013, Geometric Science of Information: First International Conference, GSI 2013, Paris, France, August 28-30, 2013. Proceedings. Nielsen, F. & Barbaresco, F. (red.). Springer, s. 76-83 8 s. (Lecture notes in computer science, Bind 8085).Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
Real-time thevenin impedance computation
Sommer, Stefan Horst & Johannsson, H., 2013, Innovative Smart Grid Technologies (ISGT), 2013 IEEE PES. IEEE, s. 1-6 6 s.Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
- Udgivet
Sparsity and scale: compact representations of deformation for diffeomorphic registration
Sommer, Stefan Horst, Nielsen, Mads & Pennec, X., 2012, 2012 IEEE Workshop on Mathematical Methods in Biomedical Image Analysis (MMBIA). IEEE, s. 217-224 8 s.Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
- Udgivet
Bicycle Chain Shape Models
Sommer, Stefan Horst, Tatu, A. J., Chen, C., Jørgensen, D., de Bruijne, Marleen, Loog, M., Nielsen, Mads & Lauze, Francois Bernard, 2009, Computer Vision and Pattern Recognition Workshops, 2009. CVPR Workshops 2009. IEEE Computer Society Conference on Computer Vision and Pattern Recognition.. IEEE, s. 157-163 7 s.Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
- Udgivet
Introduction to differential and Riemannian geometry
Sommer, Stefan Horst, Fletcher, T. & Pennec, X., 2020, Riemannian Geometric Statistics in Medical Image. Pennec, X., Sommer, S. & Fletcher, T. (red.). Academic Press, s. 3-37Publikation: Bidrag til bog/antologi/rapport › Bidrag til bog/antologi › Forskning › fagfællebedømt
- Udgivet
Anisotropic distributions on manifolds: template estimation and most probable paths
Sommer, Stefan Horst, 2015, Information processing in medical imaging: 24th International Conference, IPMI 2015, Sabhal Mor Ostaig, Isle of Skye, UK, June 28 - July 3, 2015, Proceedings. Ourselin, S., Alexander, D. C., Westin, C-F. & Cardoso, M. J. (red.). Springer, s. 193-204 12 s. (Lecture notes in computer science, Bind 9123).Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
- Udgivet
Sparse multi-scale diffeomorphic registration: the kernel bundle framework
Sommer, Stefan Horst, Lauze, Francois Bernard, Nielsen, Mads & Pennec, X., 2013, I: Journal of Mathematical Imaging and Vision. 46, 3, s. 292-308 17 s.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › fagfællebedømt
- Udgivet
A multi-scale kernel bundle for LDDMM: towards sparse deformation description across space and scales
Sommer, Stefan Horst, Nielsen, Mads, Lauze, Francois Bernard & Pennec, X., 2011, Information Processing in Medical Imaging: 22nd International Conference, IPMI 2011, Kloster Irsee, Germany, July 3-8, 2011. Proceedings. Székely, G. & Hahn, H. K. (red.). Springer, s. 624-35 12 s. (Lecture notes in computer science, Bind 6801).Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
- Udgivet
Anatomy in Curved Space: Non-linear Modeling of Deformation and Shape for Medical Imaging
Sommer, Stefan Horst, 2012, Faculty of Science, University of Copenhagen.Publikation: Bog/antologi/afhandling/rapport › Ph.d.-afhandling
- Udgivet
Kernel bundle EPDiff: Evolution equations for multi-scale diffeomorphic image registration
Sommer, Stefan Horst, Lauze, Francois Bernard, Nielsen, Mads & Pennec, X., 2012, Scale Space and Variational Methods in Computer Vision - Third International Conference, SSVM 2011, Revised Selected Papers: Third International Conference, SSVM 2011, Ein-Gedi, Israel, May 29 – June 2, 2011, Revised Selected Papers. Bruckstein, A., ter Haar Romeny, B. M., Bronstein, A. M. & Bronstein, M. M. (red.). Springer, s. 677-688 12 s. (Lecture notes in computer science, Bind 6667).Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
- Udgivet
Modelling anisotropic covariance using stochastic development and sub-Riemannian frame bundle geometry
Sommer, Stefan Horst & Svane, A. M., 2017, I: Journal of Geometric Mechanics. 9, 3, s. 391-410 20 s.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › fagfællebedømt
- Udgivet
Promoting active participation in computer science lectures
Sommer, Stefan Horst, 2014, Improving university science teaching and learning: pedagogical projects 2014. Ulriksen, L. & Sølberg, J. (red.). Department of Science Education, University of Copenhagen, s. 209-222 14 s. (Improving University Science Teaching and Learning - Pedagogical Projects; Nr. 1-2, Bind 7).Publikation: Bidrag til bog/antologi/rapport › Bidrag til bog/antologi › Forskning › fagfællebedømt
- Udgivet
Optimization over geodesics for exact principal geodesic analysis
Sommer, Stefan Horst, Lauze, Francois Bernard & Nielsen, Mads, 2014, I: Advances in Computational Mathematics. 40, 2, s. 283-313 31 s.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › fagfællebedømt
- Udgivet
Reduction by Lie Group symmetries in diffeomorphic image registration and deformation modelling
Sommer, Stefan Horst & Jacobs, H. O., 2015, I: Symmetry. 7, 2, s. 599-624 26 s.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › fagfællebedømt
- Udgivet
Evolution equations with anisotropic distributions and diffusion PCA
Sommer, Stefan Horst, 2015, Geometric science of information: Second International Conference, GSI 2015, Palaiseau, France, October 28–30, 2015, Proceedings. Nielsen, F. & Barbaresco, F. (red.). Springer Science+Business Media, s. 3-11 9 s. (Lecture notes in computer science, Bind 9389).Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
- Udgivet
Manifold valued statistics, exact principal geodesic analysis and the effect of linear approximations
Sommer, Stefan Horst, Lauze, Francois Bernard, Hauberg, S. & Nielsen, Mads, 2010, Computer Vision - ECCV 2010: 11th European Conference on Computer Vision, Heraklion, Crete, Greece, September 5-11, 2010, Proceedings, Part VI. Daniilidis, K., Maragos, P. & Paragios, N. (red.). Springer, Bind Part VI. s. 43-56 14 s. (Lecture notes in computer science; Nr. 6316).Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
- Udgivet
Anisotropically weighted and nonholonomically constrained evolutions on manifolds
Sommer, Stefan Horst, 2016, I: Entropy. 18, 12, 21 s., 425.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › fagfællebedømt
- Udgivet
Stochastic flows and shape bridges
Sommer, Stefan Horst, Schauer, M. & Meulen, F. V. D., 2021, Statistics of Stochastic Differential Equations on Manifolds and Stratified Spaces (hybrid meeting). Mathematisches Forschungsinstitut Oberwolfach, s. 18-21 (Oberwolfach Reports; Nr. 48, Bind 2021).Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning
- Udgivet
Higher-order momentum distributions and locally affine LDDMM registration
Sommer, Stefan Horst, Nielsen, Mads, Darkner, Sune & Pennec, X., 2013, I: S I A M Journal on Imaging Sciences. 6, 1, s. 341-367 27 s.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › fagfællebedømt
- Udgivet
Horizontal Flows and Manifold Stochastics in Geometric Deep Learning
Sommer, Stefan Horst & Bronstein, A. M., 2021, I: IEEE Transactions on Pattern Analysis and Machine Intelligence. 44, 2, s. 811 - 822Publikation: Bidrag til tidsskrift › Tidsskriftartikel › fagfællebedømt
- Udgivet
An Infinitesimal Probabilistic Model for Principal Component Analysis of Manifold Valued Data
Sommer, Stefan Horst, 2019, I: Sankhya A. 81, 1, s. 37-62Publikation: Bidrag til tidsskrift › Tidsskriftartikel › fagfællebedømt
- Udgivet
Reduce-factor-solve for fast Thevenin impedance computation and network reduction
Sommer, Stefan Horst, Aabrandt, A. & Jóhannsson, H., 2019, I: IET Generation, Transmission and Distribution. 13, 2, s. 288-295Publikation: Bidrag til tidsskrift › Tidsskriftartikel › fagfællebedømt
- Udgivet
Brain Segmentation in Rodent MR-Images Using Convolutional Neural Networks
Sigurdsson, B., Darkner, Sune, Sommer, Stefan Horst, Mortensen, K. N., Sanggaard, S., Kostrikov, S. & Nedergaard, Maiken, 2018.Publikation: Konferencebidrag › Konferenceabstrakt til konference › Forskning › fagfællebedømt
- Udgivet
A nonlinear mixed-effects model for simultaneous smoothing and registration of functional data
Raket, L. L., Sommer, Stefan Horst & Markussen, Bo, 2014, I: Pattern Recognition Letters. 38, s. 1-7 7 s.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › fagfællebedømt
- Udgivet
Proceedings of the fifth international workshop on Mathematical Foundations of Computational Anatomy (MFCA 2015)
Pennec, X. (red.), Joshi, S. (red.), Nielsen, Mads (red.), Fletcher, T. P. (red.), Durrleman, S. (red.) & Sommer, Stefan Horst (red.), 2015, INRIA. 173 s.Publikation: Bog/antologi/afhandling/rapport › Antologi
- Udgivet
Proceedings of the Fourth International Workshop on Mathematical Foundations of Computational Anatomy - Geometrical and Statistical Methods for Biological Shape Variability Modeling (MFCA 2013), Nagoya, Japan
Pennec, X. (red.), Joshi, S. (red.), Nielsen, Mads (red.), Fletcher, T. P. (red.), Durrleman, S. (red.) & Sommer, Stefan Horst (red.), 2013, INRIA. 134 s.Publikation: Bog/antologi/afhandling/rapport › Bog › fagfællebedømt
- Udgivet
Riemannian Geometric Statistics in Medical Image Analysis
Pennec, X. (red.), Sommer, Stefan Horst (red.) & Fletcher, T. (red.), 2020, 1. udg. Academic Press. 636 s.Publikation: Bog/antologi/afhandling/rapport › Bog › fagfællebedømt
- Udgivet
Introduction
Pennec, X., Sommer, Stefan Horst & Fletcher, T., 2020, Riemannian Geometric Statistics in Medical Image Analysis. Pennec, X., Sommer, S. & Fletcher, T. (red.). Academic Press, s. xvii-xixPublikation: Bidrag til bog/antologi/rapport › Forord/efterskrift › Forskning › fagfællebedømt
- Udgivet
Do dementia biomarkers have a sigmoid trajectory? Insights from non-linear mixed effects modeling
Pai, A. S. U., Sommer, Stefan Horst, Raket, L. L., Sørensen, L. & Nielsen, Mads, 2016, I: Alzheimer's & Dementia. 12, 7, Supplement, s. P356 1 s., O4-09-06.Publikation: Bidrag til tidsskrift › Konferenceabstrakt i tidsskrift › fagfællebedømt
- Udgivet
Characterization of errors in deep learning-based brain MRI segmentation
Pai, A. S. U., Teng, Y., Blair, J. P. M., Kallenberg, M. G. J., Dam, Erik Bjørnager, Sommer, Stefan Horst, Igel, Christian & Nielsen, Mads, 2017, Deep learning for medical image analysis. Zhou, S. K., Greenspan, H. & Shen, D. (red.). Academic Press, s. 223–242 20 s.Publikation: Bidrag til bog/antologi/rapport › Bidrag til bog/antologi › Forskning › fagfællebedømt
- Udgivet
Image registration using stationary velocity fields parameterized by norm-minimizing Wendland kernel
Pai, A. S. U., Sommer, Stefan Horst, Sørensen, L., Darkner, Sune, Sporring, Jon & Nielsen, Mads, 2015, Medical Imaging 2015: Image Processing. SPIE - International Society for Optical Engineering, 7 s. (Proceedings of S P I E - International Society for Optical Engineering, Bind 9413).Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
- Udgivet
Diffeomorphic image registration with automatic time-step adjustment
Pai, A. S. U., Klein, S., Sommer, Stefan Horst, Darkner, Sune, Sporring, Jon & Nielsen, Mads, 2015, 2015 IEEE 12th International Symposium on Biomedical Imaging (ISBI). IEEE, s. 1085-1088 4 s.Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
- Udgivet
Comparison of several computational pipelines for atrophy computation in longitudinal Alzheimers studies
Pai, A. S. U., Sommer, Stefan Horst, Darkner, Sune, Sørensen, L. E. B. L., Sporring, Jon & Nielsen, Mads, 2015. 1 s.Publikation: Konferencebidrag › Konferenceabstrakt til konference › Forskning › fagfællebedømt
- Udgivet
Stepwise inverse consistent Euler’s scheme for diffeomorphic image registration
Pai, A. S. U., Sommer, Stefan Horst, Darkner, Sune, Sørensen, L., Sporring, Jon & Nielsen, Mads, 2014, Biomedical Image Registration: 6th International Workshop, WBIR 2014, London, UK, July 7-8, 2014. Proceedings. Ourselin, S. & Modat, M. (red.). Springer, s. 223-230 8 s. (Lecture notes in computer science, Bind 8545).Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
- Udgivet
Hippocampal texture predicts rate of cognitive decline in mild cognitive impairment
Pai, A. S. U., Pillai, J. A., Sørensen, L., Darkner, Sune, Sommer, Stefan Horst & Nielsen, Mads, jul. 2017, I: Alzheimer's & Dementia. 13, 7, supplement, s. P1356 1 s., P4-225.Publikation: Bidrag til tidsskrift › Konferenceabstrakt i tidsskrift
- Udgivet
Kernel bundle diffeomorphic image registration using stationary velocity fields and Wendland basis functions
Pai, A. S. U., Sommer, Stefan Horst, Sørensen, L., Darkner, Sune, Sporring, Jon & Nielsen, Mads, 2016, I: IEEE Transactions on Medical Imaging. 35, 6, s. 1369-1380 12 s.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › fagfællebedømt
- Udgivet
A statistical model for simultaneous template estimation, bias correction, and registration of 3D brain images
Pai, A. S. U., Sommer, Stefan Horst, Raket, L. L., Kühnel, L., Darkner, Sune, Sørensen, L. & Nielsen, Mads, 2017, Medical Computer Vision and Bayesian and Graphical Models for Biomedical Imaging: MICCAI 2016 International Workshops, MCV and BAMBI, Athens, Greece, October 21, 2016, Revised Selected Papers. Müller, H., Kelm, B. M., Arbel, T., Cai, W., Cardoso, M. J., Langs, G., Menze, B., Metaxas, D., Montillo, A., Wells, W. M., Zhang, S., Chung, A. C. S., Jenkinson, M. & Ribbens, A. (red.). Springer, s. 151-159 9 s. (Lecture notes in computer science, Bind 10081).Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
- Udgivet
Adaptive time-stepping in dieomorphic image registration with bounded inverse consistency error
Pai, A. S. U., Klein, S., Sommer, Stefan Horst, Sørensen, L., Darkner, Sune, Sporring, Jon & Nielsen, Mads, 2015, Proceedings of the fifth international workshop on Mathematical Foundations of Computational Anatomy (MFCA 2015) . INRIA, s. 35-47Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
- Udgivet
Adaptive time-stepping in diffeomorphic image registration with bounded inverse consistency error
Pai, A. S. U., Klein, S., Sommer, Stefan Horst, Sørensen, L. E. B. L., Darkner, Sune, Sporring, Jon & Nielsen, Mads, 2015, The 18th International Conference on Medical Image Computing and Computer Assisted Intervention: proceedings. Technische Universität München , s. 35-47 13 s.Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
- Udgivet
PADDIT: Probabilistic Augmentation of Data using Diffeomorphic Image Transformation
Orbes-Arteaga, M., Sørensen, L., Cardoso , J., Modat , M., Ourselin, S., Sommer, Stefan Horst, Nielsen, Mads, Igel, Christian & Pai, A. S. U., 2019, Proceedings, SPIE 10949, Medical Imaging 2019: Image Processing . SPIE - International Society for Optical Engineering, 6 s.Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
- Udgivet
ICLR 2022 Challenge for Computational Geometry & Topology: Design and Results
Myers, A., Sanborn, S., Donnat, C. D. & Sommer, Stefan Horst, 2022. 8 s.Publikation: Konferencebidrag › Paper › Forskning
- Udgivet
Proceedings of Math on the rocks: shape analysis workshop in Grundsund
Modin, K. (red.) & Sommer, Stefan Horst (red.), 2015, Chalmers tekniska högskola. 42 s.Publikation: Bog/antologi/afhandling/rapport › Bog › fagfællebedømt
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