Within this interdisciplinary, collaborative research project, we will develop mathematical and algorithmic solutions for analyzing adzes/axes and grinding stones -...
Geometric Learning for Single-Cell RNA Velocity Modeling
Recent advances in Single-Cell RNA sequencing allow to infer both the gene expression of a cell and the so-called "velocity vector" initializing the changes in that...
Model-Regularized Learning Of Complex Dynamical Behavior
This project is planned to couple machine learning approaches, especially from the field of Deep Learning, with (reduced) ODE models in the sense that the model becomes...
Geometry-aware, data-analytic approaches improve understanding and assessment of pathophysiological processes. We will derive a new theoretical framework for deep neural...
This project deals with spaces of manifold-valued curves and associated shape spaces, and is based on Riemannian tools for elastic shape analysis. We plan to study...
In cooperation with one of the leading fashion retailers, we investigate and develop methods to accurately simulate the fitting of cloth.For that we develop methods to...
IntroductionThe aim of this project is the development of MRI-based methods and technologies for non-invasive in vivo assessment of s 3D soft tissue kinematics in knee...
Changes in limb or joint anatomy (e.g., due to injury or surgery) may lead to functional impairment. Accurate measurement of skeletal kinematics provides the key to...
Altered knee kinematics after posterior cruciate single-bundle reconstruction - a comprehensive prospective biomechanical in vivo analysis
Frontiers in Bioengineering and Biotechnology, Vol.12, 2024
Stephan Oehme, Philippe Moewis, Heide Boeth, Benjamin Bartek, Christoph von Tycowicz, Rainald Ehrig, Georg Duda, Tobias Jung
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Joint Reconstruction and Segmentation in Undersampled 3D Knee MRI combining Shape Knowledge and Deep Learning
Physics in Medicine and Biology, 69(9), 2024
Andreas Kofler, Christian Wald, Christoph Kolbitsch, Christoph von Tycowicz, Felix AmbellanPDF BibTeX DOI
SHREC 2024: Recognition Of Dynamic Hand Motions Molding Clay
Computers & Graphics, Vol.123, p. 104012, 2024
Ben Veldhuijzen, Remco C. Veltkamp, Omar Ikne, Benjamin Allaert, Hazem Wannous, Marco Emporio, Andrea Giachetti, Joseph J. LaViola Jr, Ruiwen He, Halim Benhabiles, Adnane Cabani, Anthony Fleury, Karim Hammoudi, Konstantinos Gavalas, Christoforos Vlachos, Athanasios Papanikolaou, Ioannis Romanelis, Vlassis Fotis, Gerasimos Arvanitis, Konstantinos Moustakas, Martin Hanik, Esfandiar Nava-Yazdani, Christoph von TycowiczBibTeX DOI
Shape-based Disease Grading via Functional Maps and Graph Convolutional Networks with Application to Alzheimer’s Disease
BMC Medical Imaging, 2024 (accepted for publication)
Julius Mayer, Daniel Baum, Felix Ambellan, Christoph von Tycowicz, for the Alzheimer’s Disease Neuroimaging Initiative
BibTeX
Efficient Riemannian Statistical Shape Analysis with Applications in Disease Assessment
Doctoral thesis, Freie Universität Berlin, Christof Schütte, Christoph von Tycowicz (Advisors), 2022
Felix AmbellanPDF BibTeX DOI URN
Estimating 3D Shape of the Head Skeleton of Basking Sharks Using Annotated Landmarks on a 2D Image
Master's thesis, Freie Universität Berlin, Daniel Baum, Christoph von Tycowicz, Mason N. Dean (Advisors), 2022
Martha Paskin
PDF BibTeX
ICLR 2022 Challenge for Computational Geomerty & Topology: Design and Results
Proceedings of Topology, Algebra, and Geometry in Learning, pp. 269-276, Vol.196, Proceedings of Machine Learning Research, 2022
Adele Myers, Saiteja Utpala, Shubham Talbar, Sophia Sanborn, Christian Shewmake, Claire Donnat, Johan Mathe, Umberto Lupo, Rishi Sonthalia, Xinyue Cui, Tom Szwagier, Arthur Pignet, Andri Bergsson, Søren Hauberg, Dmitriy Nielsen, Stefan Sommer, David Klindt, Erik Hermansen, Melvin Vaupel, Benjamin Dunn, Jeffrey Xiong, Noga Aharony, Itsik Pe’er, Felix Ambellan, Martin Hanik, Esfandiar Navayazdani, Christoph von Tycowicz, Nina Miolane
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PCL insufficient patients with increased translational and rotational passive knee joint laxity have no increased range of anterior–posterior and rotational tibiofemoral motion during level walking
Scientific Reports, 12(1), pp. 1-11, 2022
Stephan Oehme, Philippe Moewis, Heide Boeth, Benjamin Bartek, Annika Lippert, Christoph von Tycowicz, Rainald Ehrig, Georg Duda, Tobias Jung
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SHREC 2022 Track on Online Detection of Heterogeneous Gestures
Computers and Graphics, Vol.107, pp. 241-251, 2022
Ariel Caputo, Marco Emporio, Andrea Giachetti, Marco Cristani, Guido Borghi, Andrea D'Eusanio, Minh-Quan Le, Hai-Dang Nguyen, Minh-Triet Tran, Felix Ambellan, Martin Hanik, Esfandiar Navayazdani, Christoph von TycowiczBibTeX arXiv DOI
Patient specific resurfacing implant knee surgery in subjects with early osteoarthritis results in medial pivot and lateral femoral rollback during flexion: A retrospective pilot study
Knee Surgery, Sports Traumatology, Arthroscopy, 2021
Philippe Moewis, René Kaiser, Adam Trepczynski, Christoph von Tycowicz, Leonie Krahl, Ansgar Ilg, Johannes Holz, Georg Duda
BibTeX DOI
SHREC 2021: Retrieval of Cultural Heritage Objects
Computers and Graphics, Vol.100, pp. 1-20, 2021
Ivan Sipiran, Patrick Lazo, Cristian Lopez, Nihar Bagewadi, Benjamin Bustos, Hieu Dao, Shankar Gangisetty, Martin Hanik, Ngoc-Phuong Ho-Thi, Mike Holenderski, Dmitri Jarnikov, Arniel Labrada, Stefan Lengauer, Roxane Licandro, Dinh-Huan Nguyen, Thang-Long Nguyen-Ho, Luis A. Pérez Rey, Bang-Dang Pham, Minh-Khoi Pham, Reinhold Preiner, Tobias Schreck, Quoc-Huy Trinh, Loek Tonnaer, Christoph von Tycowicz, The-Anh Vu-Le
BibTeX DOI
Towards Shape-based Knee Osteoarthritis Classification using Graph Convolutional Networks
2020 IEEE 17th International Symposium on Biomedical Imaging (ISBI 2020), 2020
Christoph von TycowiczBibTeX arXiv DOI
A Surface-Theoretic Approach for Statistical Shape Modeling
Proc. Medical Image Computing and Computer Assisted Intervention (MICCAI), Part IV, pp. 21-29, Vol.11767, Lecture Notes in Computer Science, 2019 (preprint available as ZIB-Report 19-20)
Felix Ambellan, Stefan Zachow, Christoph von TycowiczPDF (ZIB-Report) BibTeX DOI
An as-invariant-as-possible GL+(3)-based Statistical Shape Model
Proc. 7th MICCAI workshop on Mathematical Foundations of Computational Anatomy (MFCA), pp. 219-228, Vol.11846, Lecture Notes in Computer Science, 2019 (preprint available as ZIB-Report 19-46)
Felix Ambellan, Stefan Zachow, Christoph von TycowiczPDF (ZIB-Report) BibTeX DOI
Statistical Shape Models - Understanding and Mastering Variation in Anatomy
Biomedical Visualisation, Paul M. Rea (Ed.), Springer Nature Switzerland AG, 1, pp. 67-84, 2019, ISBN: 978-3-030-19384-3, ISBN: 978-3-030-19385-0 (preprint available as ZIB-Report 19-13)
Felix Ambellan, Hans Lamecker, Christoph von Tycowicz, Stefan ZachowPDF (ZIB-Report) BibTeX DOI
Ultra-short echo-time (UTE) imaging of the knee with curved surface reconstruction-based extraction of the patellar tendon
ISMRM (International Society for Magnetic Resonance in Medicine), 26th Annual Meeting 2018, Paris, France, 2018
Martin Krämer, Marta Maggioni, Christoph von Tycowicz, Nick Brisson, Stefan Zachow, Georg Duda, Jürgen Reichenbach
BibTeX
Geometric Flows of Curves in Shape Space for Processing Motion of Deformable Objects
Computer Graphics Forum, 35(2), 2016 (preprint available as ZIB-Report 16-29)
Christopher Brandt, Christoph von Tycowicz, Klaus Hildebrandt
PDF (ZIB-Report) BibTeX DOI
Animating articulated characters using wiggly splines
ACM SIGGRAPH / Eurographics Symposium on Computer Animation, pp. 101-109, 2015
Christian Schulz, Christoph von Tycowicz, Hans-Peter Seidel, Klaus Hildebrandt
BibTeX DOI
Measuring 3D knee dynamics using center out radial ultra-short echo time trajectories with a low cost experimental setup
ISMRM (International Society for Magnetic Resonance in Medicine), 23rd Annual Meeting 2015, Toronto, Canada, 2015
Martin Krämer, Karl-Heinz Herrmann, Heide Boeth, Christoph von Tycowicz, Christian König, Stefan Zachow, Rainald Ehrig, Hans-Christian Hege, Georg Duda, Jürgen Reichenbach
BibTeX
Real-time Nonlinear Shape Interpolation
ACM Transactions on Graphics, 34(3), pp. 34:1-34:10, 2015
Christoph von Tycowicz, Christian Schulz, Hans-Peter Seidel, Klaus Hildebrandt
BibTeX DOI
Reducing Memory Requirements in Scientific Computing and Optimal Control
Multiple Shooting and Time Domain Decomposition Methods, T. Carraro, M. Geiger, S. Koerkel, R. Rannacher (Eds.), pp. 263-287, 2015
Sebastian Götschel, Christoph von Tycowicz, Konrad Polthier, Martin WeiserPDF BibTeX
Animating Deformable Objects Using Sparse Spacetime Constraints
ACM Transactions on Graphics, 33(4), pp. 109:1-109:10, 2014
Christian Schulz, Christoph von Tycowicz, Hans-Peter Seidel, Klaus Hildebrandt
BibTeX DOI
Concepts and Algorithms for the Deformation, Analysis, and Compression of Digital Shapes
Doctoral thesis, Freie Universität Berlin, Konrad Polthier (Advisor), 2014
Christoph von TycowiczPDF BibTeX DOI URN
Geometry processing
MATHEON - Mathematics for Key Technologies, EMS Publishing House, pp. 341-355, 2014, ISBN: 978-3-03719-137-8
Konrad Polthier, Alexander Bobenko, Klaus Hildebrandt, Ralf Kornhuber, Christoph von Tycowicz, Harry Yserentant, Günter M. Ziegler
BibTeX DOI
An Efficient Construction of Reduced Deformable Objects
ACM Transactions on Graphics, 32(6), pp. 213:1-213:10, 2013
Christoph von Tycowicz, Christian Schulz, Hans-Peter Seidel, Klaus Hildebrandt
BibTeX DOI
Interactive spacetime control of deformable objects
ACM Transactions on Graphics, 31(4), pp. 71:1-71:8, 2012
Klaus Hildebrandt, Christian Schulz, Christoph von Tycowicz, Konrad Polthier
BibTeX DOI
Modal Shape Analysis beyond Laplacian
Computer Aided Geometric Design, 29(5), pp. 204-2018, 2012
Klaus Hildebrandt, Christian Schulz, Christoph von Tycowicz, Konrad Polthier
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Context-based Coding of Adaptive Multiresolution Meshes
Computer Graphics Forum, 30(8), pp. 2231-2245, 2011
Christoph von Tycowicz, Felix Kälberer, Konrad Polthier
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Interactive surface modeling using modal analysis
ACM Transactions on Graphics, 30(5), pp. 119:1-119:11, 2011 (preprint available as )
Klaus Hildebrandt, Christian Schulz, Christoph von Tycowicz, Konrad Polthier
BibTeX DOI
Eigenmodes of Surface Energies for Shape Analysis
Advances in Geometric Modeling and Processing (Proceedings of Geometric Modeling and Processing 2010), Vol.6130, pp. 296-314, Bernard Mourrain, Scott Schaefer, Guoliang Xu (Eds.), Springer Berlin / Heidelberg, 2010
Klaus Hildebrandt, Christian Schulz, Christoph von Tycowicz, Konrad Polthier
PDF BibTeX DOI
Lossless Compression of Adaptive Multiresolution Meshes
XXII Brazilian Symposium on Computer Graphics and Image Processing, pp. 80-87, 2009
Felix Kälberer, Christoph von Tycowicz, Konrad Polthier
PDF BibTeX DOI
Measuring and Enhancing the Legibility of GPU-rendered Text
Eurographics 2008 Short Papers, pp. 45-48, 2008
Christoph von Tycowicz, Jörn Loviscach
BibTeX
Addressing Mobile Phone Diversity in Ubicomp Experience Development
UbiComp 2007: Ubiquitous Computing, 9th International Conference, pp. 447-464, Vol.4717, Lecture Notes in Computer Science, 2007
Chris Greenhalgh, Steve Benford, Adam Drozd, Martin Flintham, Alastair Hampshire, Leif Oppermann, Keir Smith, Christoph von TycowiczBibTeX DOI
EQUIP2: A Platform for Mobile Phone-based Game Development
Concepts and Technologies for Pervasive Games - A Reader for Pervasive Gaming Research, Shaker Verlag, pp. 153-178, 2007, ISBN: 978-3-8322-6223-5
Chris Greenhalgh, Steve Benford, Adam Drozd, Martin Flintham, Alastair Hampshire, Leif Oppermann, Keir Smith, Christoph von TycowiczBibTeX
Love City: A Text-Driven, Location-Based Mobile Phone Game Played Between 3 Cities
Pervasive Gaming Applications - A Reader for Pervasive Gaming Research, Shaker Verlag, pp. 285-312, 2007, ISBN: 978-3-8322-6224-2
Leif Oppermann, R. Jacobs, M. Watkins, R. Shackford, Christoph von Tycowicz, M. Wright, M. Capra, Chris Greenhalgh, Steve Benford
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