MatthiasWieczorek

Chair for Computer Aided Medical Procedures & Augmented Reality
Lehrstuhl für Informatikanwendungen in der Medizin & Augmented Reality

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Matthias Wieczorek

Contact

  • Dr. Matthias Wieczorek
  • room: MI 03.13.061
  • phone: +49 89 289 19427
  • e-mail:

  • Alumni: Now with ImFusion GmbH
    Research Scientist/Software Engineer

Research Interests

  • Tomographic reconstruction
  • GPU-accelerated algorithms
  • Advanced medical visualization



Dissertation

Anisotropic X-ray Dark-field Tomography

Abstract:
Modern X-ray based imaging enables recording of phase-contrast (refraction) and dark-field (scattering) information. Tomographic reconstruction of the dark-field signal poses a particularly challenging problem, as the scattering within an object depends on its orientation. Within this thesis an abstract software framework for tomographic reconstruction as well as a novel method for Anisotropic X-ray Dark-field Tomography will be presented. A first biomedical experiment on a sample of a human cerebellum indicates that this method could provide a complementary imaging modality for imaging nerve fibers.

Download: https://mediatum.ub.tum.de/?id=1362008

Publications

2018
M. Wieczorek, F. Schaff, C. Jud, D. Pfeiffer, F. Pfeiffer, T. Lasser
Brain Connectivity Exposed by Anisotropic X-ray Dark-field Tomography
Sci. Rep. 8:14345, 2018 (bib)
S. Seyyedi, M. Wieczorek, F. Pfeiffer, T. Lasser
Incorporating a Noise Reduction Technique into X-ray Tensor Tomography
IEEE Transactions on Computational Imaging 4(1):137-146, 2018 (bib)
2017
M. Wieczorek, F. Pfeiffer, T. Lasser
Micro-structure orientation extraction for Anisotropic X-Ray Dark-Field Tomography
International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine (Fully3D), Xi'an Shaanxi, China, June 2017 (bib)
Y. Sharma, F. Schaff, M. Wieczorek, F. Pfeiffer, T. Lasser
Acquisition Schemes for Directional Dark-Field Tomographic Modalities
International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine (Fully3D), Xi'an Shaanxi, China, June 2017 (bib)
N. Schilling, M. Wieczorek, T. Lasser
Statistical Models for Anisotropic X-Ray Dark-field Tomography
International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine (Fully3D), Xi'an Shaanxi, China, June 2017 (bib)
Y. Sharma, F. Schaff, M. Wieczorek, F. Pfeiffer, T. Lasser
Design of Acquisition Schemes and Setup Geometry for Anisotropic X-ray Dark-Field Tomography (AXDT)
Scientific Reports 7:3195, 2017. (bib)
2016
M. Wieczorek, F. Schaff, F. Pfeiffer, T. Lasser
Anisotropic X-Ray Dark-Field Tomography: A Continuous Model and its Discretization
Phys. Rev. Lett. 117, 158101, 2016 (bib)
Y. Sharma, M. Wieczorek, F. Schaff, S. Seyyedi, F. Prade, F. Pfeiffer, T. Lasser
Six dimensional X-ray Tensor Tomography with a compact laboratory setup
Appl. Phys. Lett. 109, 134102 (2016); http://dx.doi.org/10.1063/1.4963649 (bib)
S. Seyyedi, M. Wieczorek, C. Jud, F. Pfeiffer, T. Lasser
A Regularized X-ray Tensor Tomography Reconstruction Technique
International Conference on Image Formation in X-Ray Computed Tomography, Bamberg, Germany, July 2016 (bib)
M. Wieczorek, C. Jud, F. Schaff, F. Pfeiffer, T. Lasser
X-ray tensor tomography -- linear system approach to reconstruction
International Conference on Image Formation in X-Ray Computed Tomography, Bamberg, Germany, July 2016 (bib)
Y. Sharma, M. Wieczorek, C. Jud, F. Schaff, F. Pfeiffer, T. Lasser
X-ray Tensor Tomography: How much to measure?
International Conference on Image Formation in X-Ray Computed Tomography, Bamberg, Germany, July 2016 (bib)
S. Seyyedi, M. Wieczorek, Y. Sharma, F. Schaff, C. Jud, F. Pfeiffer, T. Lasser
Component-based TV Regularization for X-ray Tensor Tomography
International Symposium on Biomedical Imaging (ISBI), Prague, Czech Republic, April 2016 (bib)
M. Baust, A. Weinmann, M. Wieczorek, T. Lasser, M. Storath, N. Navab
Combined Tensor Fitting and TV Regularization in Diffusion Tensor Imaging based on a Riemannian Manifold Approach
IEEE Transactions on Medical Imaging (TMI), IEEE, 2016. (bib)
M. Wieczorek, F. Schaff, C. Jud, F. Pfeiffer, T. Lasser
An optimization oriented approach to X-ray tensor tomogprahy
International Symposium on BioMedical Applications of X-Ray Phase Contrast Imaging (IMXP), Garmisch-Patenkirchen, Germany, January 2016 (bib)
Y. Sharma, M. Wieczorek, F. Schaff, C. Jud, F. Pfeiffer, T. Lasser
Acquisition Geometry for X-ray Tensor Tomography
International Symposium on BioMedical Applications of X-Ray Phase Contrast Imaging (IMXP), Garmisch-Patenkirchen, Germany, January 2016 (bib)
2015
J. Vogel, F. Schaff, A. Fehringer, C. Jud, M. Wieczorek, F. Pfeiffer, T. Lasser
Constrained X-ray tensor tomography reconstruction
Optics Express 23(12):15134-15151, 2015 (bib)
M. Wieczorek, J. Vogel, A. Weinmann, C. Jud, F. Schaff, M. Storath, F. Pfeiffer, M. Baust, T. Lasser
Total Variation Regularization for X-Ray Tensor Tomography
Proceedings of Fully3D, Newport, USA, June 2015 (bib)
J. Vogel, M. Wieczorek, C. Jud, F. Schaff, F. Pfeiffer, T. Lasser
X-ray Tensor Tomography Reconstruction
Proceedings of Fully3D, Newport, USA, June 2015 (bib)
J. Gardiazabal, J. Vogel, P. Matthies, M. Wieczorek, B. Frisch, N. Navab, S. I. Ziegler, T. Lasser
Fully 3D thyroid imaging with mini gamma cameras
Proceedings of Fully3D, Newport, USA, June 2015 (bib)
M. Wieczorek, J. Frikel, J. Vogel, E. Eggl, F. Kopp, P. B. Noël, F. Pfeiffer, L. Demaret, T. Lasser
X-ray Computed Tomography using Curvelet Sparse Regularization
Medical Physics 42(4):1555, 2015 (bib)
T. Lasser, J. Gardiazabal, M. Wieczorek, P. Matthies, J. Vogel, B. Frisch, N. Navab
Towards 3D thyroid imaging using robotic mini gamma cameras
Bildverarbeitung für die Medizin, Lübeck, Germany, March 2015 (bib)
2014
M. Wieczorek, J. Vogel, T. Lasser
CampRecon - a software framework for linear inverse problems
Technical report, Technische Universität München, 2014. Available via mediatum. (bib)
2013
M. Wieczorek, J. Frikel, J. Vogel, F. Pfeiffer, L. Demaret, T. Lasser
Curvelet sparse regularization for differential phase-contrast X-ray imaging
Proceedings of Fully3D, Lake Tahoe, USA, June 2013. (bib)
2012
A. Aichert, M. Wieczorek, Jian Wang, L. Wang, Matthias Kreiser, P. Fallavollita, N. Navab
The Colored X-rays
MICCAI 2012 Workshop on Augmented Environments for Computer-Assisted Interventions (bib)
2011
M. Wieczorek, A. Aichert, P. Fallavollita, O. Kutter, A. Ahmadi, L. Wang, N. Navab
Interactive 3D visualization of a single-view X-Ray image
Proceedings of Medical Image Computing and Computer-Assisted Intervention (MICCAI 2011), Toronto, Canada, September 2011. (bib)
2010
T. Blum, M. Wieczorek, A. Aichert, R. Tibrewal, N. Navab
The effect of out-of-focus blur on visual discomfort when using stereo displays
The 9th IEEE and ACM International Symposium on Mixed and Augmented Reality, Seoul, Korea, Oct. 13 - 16, 2010. The original publication is available online at ieee.org. (bib)
M. Wieczorek, A. Aichert, O. Kutter, C. Bichlmeier, J. Landes, S.M. Heining, E. Euler, N. Navab
GPU-accelerated Rendering for Medical Augmented Reality in Minimally-Invasive Procedures
Proceedings of Bildverarbeitung fuer die Medizin (BVM 2010), Aachen, Germany, March 14-16 2010 (bib)


Student Projects

Teaching

Winter Term 2016

Summer Term 2016

Winter Term 2015

Summer Term 2015

Winter Term 2014/2015

Summer Term 2014

Summer Term 2013

Award

Bachelor's Thesis (Mathematics)

Inversion of the Radon transform using adaptive triangulation

Master's Thesis (Computer Science)

Curvelet sparse regularization for differential phase-contrast X-ray imaging

Bachelor's Thesis (Computer Science)

Evaluation of Advanced real-time Visualization Techniques for Medical Augmented Reality

Former Activities


UsersForm
Title: Dr.
Circumference of your head (in cm): 56
Firstname: Matthias
Middlename:  
Lastname: Wieczorek
Picture: /twiki/pub/Main/MatthiasWieczorek/portrait_60p.jpeg
Birthday:  
Nationality: Germany
Languages: English, German
Groups: Registration/Visualization, Reconstruction, Medical Imaging, Computer-Aided Surgery, Computer Vision, Medical Augmented Reality, 3D Information Presentation, 3D Interaction
Expertise: Registration/Visualization, Computer-Aided Surgery, Computer Vision, Medical Augmented Reality, 3D Interaction
Position: Scientific Staff
Status: Alumni
Emailbefore: wieczore
Emailafter: cs.tum.edu
Room: MI 03.13.061
Telephone: +49 89 289 19427
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Alumnihomepage: ImFusion GmbH
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