@InProceedings{kuckertz2020BVM,
author={Kuckertz, Sven and Papenberg, Nils and Honegger, Jonas and Morgas, Tomasz and Haas, Benjamin and Heldmann, Stefan},
editor={Tolxdorff, Thomas and Deserno, Thomas M. and Handels, Heinz and Maier, Andreas and Maier-Hein, Klaus H. and Palm, Christoph},
title={Abstract: Deep Learning Based CT-CBCT Image Registration for Adaptive Radio Therapy},
booktitle={Bildverarbeitung f{\"u}r die Medizin 2020},
year={2020},
publisher={Springer},
pages={229--229},
isbn={978-3-658-29267-6},
url={https://doi.org/10.1007/978-3-658-29267-6_51}
}

@inproceedings{kuckertz2020WBIR,
  title={Learning Deformable Image Registration with Structure Guidance Constraints for Adaptive Radiotherapy},
  author={Kuckertz, Sven and Papenberg, Nils and Honegger, Jonas and Morgas, Tomasz and Haas, Benjamin and Heldmann, Stefan},
  booktitle={International Workshop on Biomedical Image Registration},
  pages={44--53},
  year={2020},
  organization={Springer},
  url={http://dx.doi.org/10.1007%2F978-3-030-50120-4_5}
}

@inproceedings{kuckertz2020SPIE,
  title={Deep learning based CT-CBCT image registration for adaptive radio therapy},
  author={Kuckertz, Sven and Papenberg, Nils and Honegger, Jonas and Morgas, Tomasz and Haas, Benjamin and Heldmann, Stefan},
  booktitle={Medical Imaging 2020: Image Processing},
  volume={11313},
  pages={113130Q},
  year={2020},
  organization={International Society for Optics and Photonics},
  url={http://dx.doi.org/10.1117%2F12.2549531}
}

@InProceedings{BudelmannPapenbergLellmann2018,
  author =    {Budelmann, Daniel and K{\"o}nig, Lars and Papenberg, Nils and Lellmann, Jan},
  title =     {Fully-Deformable 3D Image Registration in Two Seconds},
  booktitle = {Bildverarbeitung f{\"u}r die Medizin 2019},
  year =      {2019},
  editor =    {Handels, Heinz and Deserno, Thomas M. and Maier, Andreas and Maier-Hein, Klaus Hermann and Palm, Christoph and Tolxdorff, Thomas},
  pages =     {302--307},
  address =   {Wiesbaden},
  publisher = {Springer Fachmedien Wiesbaden}
}

@article{konig2016deformable,
  title={Deformable image registration for adaptive radiotherapy with guaranteed local rigidity constraints},
  author={K{\"o}nig, Lars and Derksen, Alexander and Papenberg, Nils and Haas, Benjamin},
  journal={Radiation Oncology},
  volume={11},
  number={1},
  pages={122},
  year={2016},
  publisher={BioMed Central},
doi={10.1186/s13014-016-0697-4}
}

@INPROCEEDINGS{papenberg2015locally,
	author = {Papenberg, Nils and König, Lars and Heldmann, Stefan and Derksen, Alexander and Modersitzki, Jan and Haas, Benjamin},
	booktitle = {Varian Research Partnership Symposium},
	title = {A Locally Variable Transformation Model for Deformable Image Registration Using Tissue Properties},
	year = {2015},
	address = {Atlanta, Georgia, USA},
	month = {March}	
}

@article{konig2015deformable,
  title={Deformable image registration with guaranteed local rigidity},
  author={K{\"o}nig, L and Derksen, A and Heldmann, S and Papenberg, N and Modersitzki, J and Haas, B},
  journal={Radiotherapy and Oncology: Proceedings of the 3rd ESTRO Forum, Barcelona},
  volume={115},
  pages={S197--S198},
  year={2015},
  publisher={Elsevier},
doi={10.1016/S0167-8140(15)40405-0}
}

@incollection{Modersitzki2015307,
title = {Nonlinear Registration Via Displacement Fields},
editor = {Toga, Arthur W.},
booktitle = {Brain Mapping},
publisher = {Academic Press},
edition = {},
address = {Waltham},
year = {2015},
pages = {307 - 314},
isbn = {978-0-12-397316-0},
doi = {http://dx.doi.org/10.1016/B978-0-12-397025-1.00300-6},
url = {http://www.sciencedirect.com/science/article/pii/B9780123970251003006},
author = {J. Modersitzki and S. Heldmann and N. Papenberg},
keywords = {Displacement fields, Image fusion,Image registration, Nonlinear registration, Variational formulation},
abstract = {Abstract This article presents a brief review on nonlinear registration techniques based on a variational formulation. The main advantages of this setting are its great modeling potential and its modular setting. This enables easy changes and adaptations for fine-tuning for particular applications. Furthermore, this setting also enables the integration of additional information. This can be formulated in terms of either soft or hard constraints, such as privileged handling of anatomical landmarks, local rigidity of structures, and emphasis on volume preservation or limitations of volume changes. The latter is of particular interest for one-to-one displacement fields (also known as diffeomorphic registration). The setting is supported by a rigorous mathematical theory and can be translated into fast and stable implementations. Although the focus of this article is not on the practical realization, important concepts such as multiscale and multilevel representations and reduction of ambiguities of results based on proper regularization are also briefly discussed.},
}

@INPROCEEDINGS{konig2015parallel,
	author = {K\"{o}nig, Lars and Derksen, Alexander and Hallmann, Marc and Papenberg, Nils},
	booktitle = {IEEE International Symposium on Biomedical Imaging: From Nano to Macro},
	title = {Parallel and Memory Efficient Multimodal Image Registration for Radiotherapy using Normalized Gradient Fields},
	year = {2015},
	address = {New York City, USA},
	month = {April},
        url = {http://dx.doi.org/10.1109/ISBI.2015.7163977}
}

@INPROCEEDINGS{2013-Deformable,
	author = {K\"{o}nig, Lars and Papenberg, Nils and Haas, Benjamin and Modersitzki, Jan},
	booktitle = {Varian Research Partnership Symposium},
	title = {Deformable Registration for Adaptive Radiotherapy with Guaranteed Local Rigidity Constraints},
	year = {2013},
	address = {Atlanta, Georgia, USA},
	month = {March}	
}

@INPROCEEDINGS{2011-BVM-ZPMF,
  author = {Zimmer, Veronika and Papenberg, Nils and Modersitzki, Jan and Fischer,
	Bernd},
  title = {Bildregistrierung zur Verbrennungsanalyse},
  booktitle = {Bildverarbeitung f\"ur die Medizin 2011},
  year = {2011},
  editor = {H Handels},
  pages = {159--163},
  publisher = {Springer}
}

@INPROCEEDINGS{2011-SPIE-OBHPF,
	author = {Olesch, Janine and Beuthien, Björn and Heldmann, Stefan and Papenberg, Nils and Fischer, Bernd},
	booktitle = {SPIE Medical Imaging 2011: Visualization, Image-Guided Procedures, and Modeling},
	title = {Fast intra-operative nonlinear registration of 3D-CT to tracked, selected 2D-ultrasound slices},
	year = {2011},
	address = {Lake Buena Vista, Florida, USA},
	month = {February}	
}

@inproceedings{2010-BMT-HBOPF,
	Address = {Rostock, Germany},
	Author = {Heldmann, Stefan and Beuthien, Bj{\"o}rn  and Olesch, Janine and Papenberg, Nils and Fischer, Bernd},
	Booktitle = {BMT 2010 - FAL-Sessions, Hot-Topic Sessions, Projektsessions (BMT 2010 - FAL-Sessions - Hot-Topic Sessions - Projektsessions)},
	Title = {Improved Minimal-Invasive Laparoscopic Liver Surgery by Registration of 3D CT and 2D Ultrasound Slices},
	Year = {2010},
}

@inproceedings{2010-BVM-PSHBSW,
	Author = {Papenberg, N. and Schumacher, H. and Heldmann, S. and B{\"o}hler, T. and van Straaten, D. and Wirtz, S.},
	Booktitle = {Bildverarbeitung f{\"u}r die Medizin},
	Pages = {335--339},
	Title = {Multimodale Registrierung von Knochen-Szintigraphien und R{\"o}ntgenbildern},
	Year = {2010}}

@inproceedings{2009-WCMP-LPOFS,
	Author = {Lange, Thomas and Papenberg, Nils and Olesch, Janine and Fischer, Bernd and Schlag, Peter M.},
	Title = {Landmark Constrained Non-rigid Image Registration with Anisotropic Tolerances},
	booktitle = {World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany},
	Editor = {Olaf D\"{o}ssel and Wolfgang C. Schlegel},
	Pages = {2238--2241},
	Publisher = {Springer},
	Series = {IFMBE Proceedings},
	Volume = {25/IV},
	Year = {2009}
}

@inproceedings{2009-SPIE-OPLCF,
	Author = {Olesch, Janine and Papenberg, Nils and Lange, Thomas and Conrad, Matthias and Fischer, Bernd},
	Editor = {Miga, Michael I. and  Wong, Kenneth H..},
	Title = {Matching {CT} and Ultrasound Data of the Liver by Landmark Constrained Image Registration},
	Journal = {Medical Imaging 2009: Visualization, Image-Guided Procedures, and Modeling},
	Volume = {7261,72610G},
	Year = {2009},
	Numpages = {7},
	Publisher = {SPIE},
}

@article{LangeEtAl2009,
	Author = {Lange, Thomas and Papenberg, Nils and Heldmann, Stefan and Modersitzki, Jan and Fischer, Bernd and Schlag, Peter M.},
	Journal = {International Journal of Computer Assisted Radiology and Surgery},
	Number = {1},
	Pages = {79--88},
	Title = {3D Ultrasound--{CT} Alignment of the Liver using Combined Landmark--Intensity Registration},
	Volume = {4},
	Year = {2009}}

@inproceedings{2009-BVM-POLSF,
  author    = {Papenberg, Nils and Olesch, Janine and Lange, Thomas and Schlag, Peter M. and Fischer, Bernd},
  title     = {Landmark Constrained Non-parametric Image Registration with Isotropic Tolerances},
  booktitle = {Bildverarbeitung f{\"u}r die Medizin},
   editor    = {Hans-Peter Meinzer and Thomas Martin Deserno and Heinz Handels and Thomas Tolxdorff},
  year      = {2009},
  Series = {Informatik aktuell},
  pages     = {122-126},
  publisher = {Springer},
}

@ARTICLE{2009-SSVM-HP,
  author = {Heldmann, Stefan and Papenberg, Nils},
  title = {A Variational Approach for Volume-to-Slice Registration},
  booktitle= {SSVM '09: Proceedings of the Second International Conference on Scale Space and Variational Methods in Computer Vision},
  Series = {LNCS}
  volume = {5567},
  year = {2009},
  location={Voss, Norway},
  publisher={Springer Berlin/ Heidelberg},
  pages = {624-635},
  DOI={10.1007/978-3-642-02256-2_52},
  ISBN={978-3-642-02255-5},
}

@conference{2009-BVM-HP,
  author = {Heldmann, Stefan and Papenberg, Nils},
  title = {A Scale-Space Approach for Image Registration of Vessel Structures},
  journal = {Bildverarbeitung f\"{u}r die Medizin},
  Series = {Informatik aktuell},
  Xvolume = {7},
  year = {2009},
  publisher={Springer},
  pages = {137-141},
  DOI={10.1007/978-3-540-93860-6_28},
}

@inproceedings{2008-CARS-LPHMFLS,
	Author = {Lange, Thomas and Papenberg, Nils and Heldmann, Stefan and Modersitzki, Jan and Fischer, Bernd and Schlag, Peter M.},
	Booktitle = {Internationnal Conference on Computer Assisted Radiology and Surgery 2008 (CARS '08)},
	Title = {{3D Ultrasound--CT Alignment of the Liver using Combined Landmark--Intensity Registration}},
	Year = {2008}}

@phdthesis{2008-PhD-Papenberg,
  Author = {Nils Papenberg},
  Title = {Ein genereller Registrierungsansatz mit Anwendung in der navigierten Leberchirurgie},
  School = {Institute of Mathematics, University of L\"ubeck},
  Year = {2008},
}

@conference{2008-SPIE-PLMSF,
  author = {Papenberg, Nils, and Lange, Thomas and Modersitzki, Jan and Schlag, Peter M. and Fischer, Bernd},
  title = {Image Registration for {CT} and Intra-operative Ultrasound Data of the Liver},
  Booktitle = {Medical Imaging 2008: Image Processing},
  editor = {MI Miga and KR Cleary},  
  volume = {6918},
  publisher = {SPIE},
  year = {2008},
  pages = {1-5},
  DOI={10.1117/12.770105},
}

@conference{2008-BVM-PMF,
  author = {Papenberg, Nils and Modersitzki, Jan and Fischer, Bernd},
  title = {{R}egistrierung im {F}okus: {B}eschleunigung {V}ariationeller {M}ethoden f\"{u}r die {B}ildregistrierung},
  book={{B}ildverarbeitung f\"{u}r die {M}edizin},
  Editor = {T. Toldoff and J. Braun and T.M. Deserno and H. Handels and A. Horsch and {H.-P. Meinzer}},
  volume = {7},
  year = {2008},
  publisher={Springer Berlin / Heidelberg},
  pages = {138-142},
  Title = {Registrierung im Fokus},
  Series = {Informatik aktuell},
  DOI={10.1007/978-3-540-78640-5},
  ISSN={1431-472X},
  ISBN={978-3-540-78639-9 (Print), 978-3-540-78640-5 (Online)},
}

@conference{2007-BVM-FLIRT,
  author = {Papenberg, Nils and Schumacher, Hanno and Heldmann, Stefan and Wirtz, Stefan and Bommersheim, Silke and Ens, Konstantin and Modersitzki, Jan and Fischer, Bernd},
  title = {A Fast and Flexible Image Registration Toolbox: Design and Implementation of the General Approach},
  book= {Bildverarbeitung f\"{u}r die Medizin 2007},
  Series = {Informatik aktuell},
  Editor = {A. Horsch and T.M. Deserno and H. Handels and {H.-P. Meinzer} and T. Tolxdoff},
  volume = {5},
  year = {2007},
  publisher={Springer Berlin/ Heidelberg},
  pages = {106-110},
  DOI={10.1007/978-3-540-71091-2},
  ISSN={1431-472X},
  ISBN={978-3-540-71090-5 (Print), 978-3-540-71091-2 (Online)},
}

@inproceedings{2005-BVM-BPFARB,
	Author = {Bolten, Matthias and Papenberg, Nils and Fischer, Bernd and Adamidis, Panagiotis and Rabenseifner, Rolf and Berger, Holger},
	Booktitle = {Bildverarbeitung f{\"u}r die Medizin 2005},
	Editor = {H.-P. Meinzer and H. Handels and A. Horsch and T. Tolxdorff},
	Pages = {360--364},
	Publisher = {Springer},
	Series = {Informatik aktuell},
	Title = {{P}arallelisierung eines {N}ichtlinearen {R}egistrierungsalgorithmus zur {V}erarbeitung sehr großer {V}olumen-{D}aten},
	Year = {2005}
}

@inproceedings{2005-SPIE-WPFS,
	Author = {Wirtz, Stefan and Papenberg, Nils and Fischer, Bernd and Schmitt, Oliver},
	Booktitle = {Medical Imaging 2005: Image Processing},
	Editor = {J.M. Fitzpatrick and J.M. Reinhardt},
	Pages = {1256--1262},
	Publisher = {SPIE},
	Title = {Robust and Staining-Invariant Elastic Registration of a Series of Images from Histologic Slices},
	Volume = {5747},
	Year = {2005}
}

@TECHREPORT{2002-TR-BMP, 
  author = {Bolten,M and Modersitzki, Jan and Papenberg, Nils},
  title = {A parallel implementation of the {AOS}-based diffusion registration},
  institution = {Institute of Mathematics, University of L\"ubeck, Germany},
  year = {2004},
  type = {In preparation},
}