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Published
Iron oxidizing bacteria, Gallionella and Leptotrix, from seven locations in Denmark
Sommer, S. T. C., Stipp, S. L. S. & Balic Zunic, Tonci, 2004, In: Geochimica et Cosmochimica Acta. 68 S11, p. A466
Research output: Contribution to journal › Journal article › Research
Published
Horizontal Flows and Manifold Stochastics in Geometric Deep Learning
Sommer, Stefan Horst & Bronstein, A. M., 2021, In: IEEE Transactions on Pattern Analysis and Machine Intelligence. 44, 2, p. 811 - 822
Research output: Contribution to journal › Journal article › Research › peer-review
Published
An Infinitesimal Probabilistic Model for Principal Component Analysis of Manifold Valued Data
Sommer, Stefan Horst, 2019, In: Sankhya A. 81, 1, p. 37-62
Research output: Contribution to journal › Journal article › Research › peer-review
Published
Reduce-factor-solve for fast Thevenin impedance computation and network reduction
Sommer, Stefan Horst, Aabrandt, A. & Jóhannsson, H., 2019, In: IET Generation, Transmission and Distribution. 13, 2, p. 288-295
Research output: Contribution to journal › Journal article › Research › peer-review
Published
Higher-order momentum distributions and locally affine LDDMM registration
Sommer, Stefan Horst, Nielsen, Mads, Darkner, Sune & Pennec, X., 2013, In: S I A M Journal on Imaging Sciences. 6, 1, p. 341-367 27 p.
Research output: Contribution to journal › Journal article › Research › peer-review
Real-time thevenin impedance computation
Sommer, Stefan Horst & Johannsson, H., 2013, Innovative Smart Grid Technologies (ISGT), 2013 IEEE PES. IEEE, p. 1-6 6 p.
Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
Published
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. (eds.). Springer, p. 76-83 8 p. (Lecture notes in computer science, Vol. 8085).
Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
Published
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, p. 217-224 8 p.
Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
Published
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. (eds.). Academic Press, p. 3-37
Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
Published
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, p. 157-163 7 p.
Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
Published
Accelerating multi-scale flows for LDDKBM diffeomorphic registration
Sommer, Stefan Horst, 2011, 2011 IEEE International Conference on Computer Vision Workshops (ICCV Workshops). IEEE, p. 499-505 7 p.
Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
Published
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. (eds.). Springer, p. 193-204 12 p. (Lecture notes in computer science, Vol. 9123).
Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
Published
Sparse multi-scale diffeomorphic registration: the kernel bundle framework
Sommer, Stefan Horst, Lauze, Francois Bernard, Nielsen, Mads & Pennec, X., 2013, In: Journal of Mathematical Imaging and Vision. 46, 3, p. 292-308 17 p.
Research output: Contribution to journal › Journal article › Research › peer-review
Published
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. (eds.). Springer, p. 624-35 12 p. (Lecture notes in computer science, Vol. 6801).
Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
Published
Anatomy in Curved Space: Non-linear Modeling of Deformation and Shape for Medical Imaging
Sommer, Stefan Horst, 2012, Faculty of Science, University of Copenhagen.
Research output: Book/Report › Ph.D. thesis › Research
Published
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. (eds.). Springer, p. 677-688 12 p. (Lecture notes in computer science, Vol. 6667).
Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
Published
Modelling anisotropic covariance using stochastic development and sub-Riemannian frame bundle geometry
Sommer, Stefan Horst & Svane, A. M., 2017, In: Journal of Geometric Mechanics. 9, 3, p. 391-410 20 p.
Research output: Contribution to journal › Journal article › Research › peer-review
Published
Promoting active participation in computer science lectures
Sommer, Stefan Horst, 2014, Improving university science teaching and learning: pedagogical projects 2014. Ulriksen, L. & Sølberg, J. (eds.). Department of Science Education, University of Copenhagen, p. 209-222 14 p. (Improving University Science Teaching and Learning - Pedagogical Projects; No. 1-2, Vol. 7).
Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
Published
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. (eds.). Springer Science+Business Media, p. 3-11 9 p. (Lecture notes in computer science, Vol. 9389).
Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
Published
Optimization over geodesics for exact principal geodesic analysis
Sommer, Stefan Horst, Lauze, Francois Bernard & Nielsen, Mads, 2014, In: Advances in Computational Mathematics. 40, 2, p. 283-313 31 p.
Research output: Contribution to journal › Journal article › Research › peer-review
Published
Reduction by Lie Group symmetries in diffeomorphic image registration and deformation modelling
Sommer, Stefan Horst & Jacobs, H. O., 2015, In: Symmetry. 7, 2, p. 599-624 26 p.
Research output: Contribution to journal › Journal article › Research › peer-review
Published
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. (eds.). Springer, Vol. Part VI. p. 43-56 14 p. (Lecture notes in computer science; No. 6316).
Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
Published
Anisotropically weighted and nonholonomically constrained evolutions on manifolds
Sommer, Stefan Horst, 2016, In: Entropy. 18, 12, 21 p., 425.
Research output: Contribution to journal › Journal article › Research › peer-review
Published
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, p. 18-21 (Oberwolfach Reports; No. 48, Vol. 2021).
Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research
Published
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. (eds.). Academic Press, p. 377-416
Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

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