Marco Maaß, M.Sc.

Research Associate


Institute for Signal Processing
University of Luebeck
Ratzeburger Allee 160
23562 Lübeck

Gebäude 64. 1. OG, Raum 30a

Email: marco.maass(at)uni-luebeck.de
Phone: +49 451 3101 5814

Arbeitsgebiet

Publications

2022

Marco Maaß, Christine Droigk, Mathias Eulers, and Alfred Mertins,
An analytical equilibrium solution to the Néel relaxation Fokker-Planck equation, International Journal on Magnetic Particle Imaging , vol. 8, no. 1, pp. 1--4, 2022. Infinite Science Publishing.
Bibtex: BibTeX
@article{Maass2022N,
     author = {Maass, Marco and Droigk, Christine  and Eulers, Mathias and Mertins, Alfred},
     title = {An analytical equilibrium solution to the Néel relaxation Fokker-Planck equation},
     year = {2022},
     volume = {8},
     number = {1},
     pages = {1--4},
     journal = {International Journal on Magnetic Particle Imaging},
     publisher = {Infinite Science Publishing} }

Christine Droigk, Marco Maaß, and Alfred Mertins,
Direct multi-dimensional Chebyshev polynomial based reconstruction for magnetic particle imaging, Physics in Medicine & Biology , vol. 67, no. 4, pp. 045014, 2022.
DOI:10.1088/1361-6560/ac4c2e
Bibtex: BibTeX
@Article{Droigk2022a,
  author  = {Droigk, Christine and Maass, Marco and Alfred Mertins},
  journal = {Physics in Medicine & Biology},
  title   = {Direct multi-dimensional Chebyshev polynomial based reconstruction for magnetic particle imaging},
  year = {2022},
  doi    = {10.1088/1361-6560/ac4c2e},
  volume = {67},
  number = {4},
  pages = {045014},
}
Fabrice Katzberg, Marco Maaß, René Pallenberg, and Alfred Mertins,
Positional Tracking of a Moving Microphone in Reverberant Scenes by Applying Perfect Sequences to Distributed Loudspeakers, in Proc. International Workshop on Acoustic Signal Enhancement (IWAENC) , Bamberg, Germany , 2022.
File: katzberg2022.pdf
Bibtex: BibTeX
@InProceedings{katzberg2022,
  Title                    = {Positional Tracking of a Moving Microphone in Reverberant Scenes by Applying Perfect Sequences to Distributed Loudspeakers},
  Author                   = {Katzberg, Fabrice and Maass, Marco and Pallenberg, René} and Mertins, Alfred},
  Booktitle                = {Proc. International Workshop on Acoustic Signal Enhancement (IWAENC)},
  Year                     = {2022},

  Address                  = {Bamberg, Germany},
  Month                    = {September},
}

2021

Philipp Koch, Kamran Mohammad-Zadeh, Marco Maaß, Mark Dreier, Ole Thomsen, Tim J. Parbs, Huy Phan, and Alfred Mertins,
sEMG-Based Hand Movement Regression by Prediction of Joint Angles With Recurrent Neural Networks, in 43nd Annual International Conference of the IEEE Engineering in Medicine \& Biology Society (EMBC) , 2021. pp. 6519--6523.
DOI:10.1109/EMBC46164.2021.9630042
Bibtex: BibTeX
@InProceedings{Koch2021,
  author    = {Koch, Philipp and Mohammad-Zadeh, Kamran and Maass, Marco and Dreier, Mark and Thomsen, Ole and Parbs, Tim J. and Phan, Huy and Mertins, Alfred},
  title     = {sEMG-Based Hand Movement Regression by Prediction of Joint Angles With Recurrent Neural Networks},
  booktitle = {43nd Annual International Conference of the IEEE Engineering in Medicine \& Biology Society (EMBC)},
  year      = {2021},
  pages     = {6519--6523},
doi = {10.1109/EMBC46164.2021.9630042},
}
Fabrice Katzberg, Marco Maaß, and Alfred Mertins,
Spherical Harmonic Representation for Dynamic Sound-Field Measurements, in Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) , Toronto, Canada , 2021.
File: katzberg2021a.pdf
Bibtex: BibTeX
@InProceedings{katzberg2021a,
  Title                    = {Spherical Harmonic Representation for Dynamic Sound-Field Measurements},
  Author                   = {Katzberg, Fabrice and Maass, Marco and Mertins, Alfred},
  Booktitle                = {Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)},
  Year                     = {2021},
  Address                  = {Toronto, Canada},
  Month                    =  {June},
}
Fabrice Katzberg, Marco Maaß, and Alfred Mertins,
Coherence Based Trajectory Optimization for Compressive Sensing of Sound Fields, in Proc. 29th European Signal Processing Conference (EUSIPCO) , Dublin, Ireland , 2021.
File: katzberg2021b.pdf
Bibtex: BibTeX
@InProceedings{katzberg2021b,
  Title                    = {Coherence Based Trajectory Optimization for Compressive Sensing of Sound Fields},
  Author                   = {Katzberg, Fabrice and Maass, Marco and Mertins, Alfred},
  Booktitle                = {Proc. 29th European Signal Processing Conference (EUSIPCO)},
  Year                     = {2021},
  Address                  = {Dublin, Ireland},
  Month                    =  {August},
}

2020

Marco Maaß, and Alfred Mertins,
On the Representation of Magnetic Particle Imaging in Fourier Space, International Journal on Magnetic Particle Imaging , vol. 6, no. 1, 2020.
File: maass2019b.pdf
Bibtex: BibTeX
@article{maass2019b,
	author = {Maass, Marco and Mertins, Alfred },
	title = {On the Representation of Magnetic Particle Imaging in Fourier Space},
	journal = {International Journal on Magnetic Particle Imaging},
	volume = {6},
	number = {1},
	year = {2020}
}
Philipp Koch, Mark Dreier, Marco Maaß, Huy Phan, and Alfred Mertins,
RNN With Stacked Architecture for sEMG based Sequence-to-Sequence Hand Gesture Recognition, in 28th European Signal Processing Conference (EUSIPCO) , 2020. pp. 1600-1604.
Bibtex: BibTeX
@InProceedings{Koch2020b,
  author    = {Koch, Philipp and Dreier, Mark and Maass, Marco and Phan, Huy and Mertins, Alfred},
  title     = {RNN With Stacked Architecture for sEMG based Sequence-to-Sequence Hand Gesture Recognition},
  booktitle = {28th European Signal Processing Conference (EUSIPCO)},
  year      = {2020},
  pages     = {1600-1604},
}
Philipp Koch, Mark Dreier, Anna Larsen, Tim J. Parbs, Marco Maaß, Huy Phan, and Alfred Mertins,
Regression of Hand Movements from sEMG Data with Recurrent Neural Networks, in 42nd Annual International Conference of the IEEE Engineering in Medicine \& Biology Society (EMBC) , 2020. pp. 3783--3787.
Bibtex: BibTeX
@InProceedings{Koch2020a,
  author    = {Koch, Philipp and Dreier, Mark and Larsen, Anna and Parbs, Tim J. and Maass, Marco and Phan, Huy and Mertins, Alfred},
  title     = {Regression of Hand Movements from sEMG Data with Recurrent Neural Networks},
  booktitle = {42nd Annual International Conference of the IEEE Engineering in Medicine \& Biology Society (EMBC)},
  year      = {2020},
  pages     = {3783--3787},
}
Alfred Mertins, Marco Maaß, and Fabrice Katzberg,
Room Impulse Response Reshaping and Crosstalk Cancellation Using Convex Optimization, IEEE/ACM Transactions on Audio, Speech, and Language Processing , vol. 29, pp. 489--502, 2020. IEEE.
Bibtex: BibTeX
@article{mertins2020room,
  title={Room Impulse Response Reshaping and Crosstalk Cancellation Using Convex Optimization},
  author={Mertins, Alfred and Maass, Marco and Katzberg, Fabrice},
  journal={IEEE/ACM Transactions on Audio, Speech, and Language Processing},
  volume={29},
  pages={489--502},
  year={2020},
  publisher={IEEE}
}
M. Maaß, C. Droigk, and A. Mertins,
MPI reconstruction using bessel functions, in 10th International Workshop on Magnetic Particle Imaging (IWMPI 2020) , Würzburg, Germany , 2020.
Bibtex: BibTeX
@InProceedings{maass2020a,
  author    = {Maass, M. and Droigk, C. and Mertins, A.},
  booktitle = {10th International Workshop on Magnetic Particle Imaging (IWMPI 2020)},
  title     = {MPI reconstruction using bessel functions},
  year      = {2020},
  address   = {Würzburg, Germany},
  month     = {September},
}
Christine Droigk, Marco Maaß, and Alfred Mertins,
An upper bound for the frequency dependent energy of the 2-dimensional system function, International Journal on Magnetic Particle Imaging , vol. 6, no. 2 Suppl 1, 2020.
Bibtex: BibTeX
@article{droigk2020a,
  author    = {Droigk, Christine and Maass, Marco and Mertins, Alfred},
  title     = {An upper bound for the frequency dependent energy of the 2-dimensional system function},
journal = {International Journal on Magnetic Particle Imaging},
volume={6},
  number={2 Suppl 1},
  year      = {2020},
  month     = {September}
}
M. Maaß, C. Droigk, F. Katzberg, P. Koch, and A. Mertins,
A Recovery Algorithm based on the Kaczmarz Algorithm and ADMM Splitting with Application to Convex Optimization in Magnetic Particle Imaging, in 28th European Signal Processing Conference (EUSIPCO 2020) , 2020. pp. 2135--2139.
File: maass2020c.pdf
Bibtex: BibTeX
@InProceedings{maass2020c,
  author    = {Maass, M. and Droigk, C. and Katzberg, F. and Koch, P. and Mertins, A.},
  booktitle = {28th European Signal Processing Conference (EUSIPCO 2020)},
  title     = {A Recovery Algorithm based on the Kaczmarz Algorithm and ADMM Splitting with Application to Convex Optimization in Magnetic Particle Imaging},
  month = {September},
  year      = {2020},
  pages    = {2135--2139},
}
M. Maaß, C. Droigk, and A. Mertins,
A novel representation of the MPI system function, in 10th International Workshop on Magnetic Particle Imaging (IWMPI 2020) , Würzburg, Germany , 2020.
Bibtex: BibTeX
@InProceedings{maass2020b,
  author    = {Maass, M. and Droigk, C. and Mertins, A.},
  booktitle = {10th International Workshop on Magnetic Particle Imaging (IWMPI 2020)},
  title     = {A novel representation of the MPI system function},
  year      = {2020},
  address   = {Würzburg, Germany},
  month     = {September},
}

2019

P. Koch, M. Maaß, M. Bruhns, C. Droigk, T. J. Parbs, and A. Mertins,
Neural Network for Reconstruction of MPI Images, in 9th International Workshop on Magnetic Particle Imaging (IWMPI 2019) , New York, USA: Infinite Science Publishing, 2019. pp. 39--40.
File: koch2019a.pdf
Bibtex: BibTeX
@inproceedings{koch2019a,
Author = {Koch, P.  and Maass, M. and Bruhns, M. and Droigk, C.  and Parbs, T. J. and Mertins, A.}, 
Title = {Neural Network for Reconstruction of MPI Images}, 
Year = {2019}, 
Pages = {39--40}, 
Booktitle = {9th International Workshop on Magnetic Particle Imaging (IWMPI 2019)}, 
publisher = {Infinite Science Publishing},
address = {New York, USA}, 
month = {March},
}
Christine Droigk, Marco Maaß, and Alfred Mertins,
Multiresolution vessel detection in magnetic particle imaging using wavelets and a Gaussian mixture model, International Journal of Computer Assisted Radiology and Surgery , vol. 14, no. 11, pp. 1913-1921, 2019.
DOI:10.1007/s11548-019-02079-w
Bibtex: BibTeX
@article{droigk2019c,
author={Droigk, Christine and Maass, Marco and Mertins, Alfred},
title={Multiresolution vessel detection in magnetic particle imaging using wavelets and a Gaussian mixture model},
journal={International Journal of Computer Assisted Radiology and Surgery},
year={2019},
month={November},
day={01},
volume={14},
number={11},
pages={1913-1921},
abstract={Magnetic particle imaging is a tomographic imaging technique that allows one to measure the spatial distribution of superparamagnetic nanoparticles, which are used as tracer. The magnetic particle imaging scanner measures the voltage induced due to the nonlinear magnetization behavior of the nanoparticles. The tracer distribution can be reconstructed from the voltage signal by solving an inverse problem. A possible application is the imaging of vessel structures. In this and many other cases, the tracer is only located inside the structures and a large part of the image is related to background. A detection of the tracer support in early stages of the reconstruction process could improve reconstruction results.},
issn={1861-6429},
doi={10.1007/s11548-019-02079-w}
}
Christine Droigk, Marco Maaß, Philipp Koch, Anita Möller, and Alfred Mertins,
Multiresolution Magnetic Particle Imaging of Vessel Structures with Support Detection, in 9th International Workshop on Magnetic Particle Imaging (IWMPI 2019) , New York, USA: Infinite Science Publishing, 2019. pp. 113-114.
File: Droigk2019_Multiresolution_Magnetic_Particle_Imaging_of_Vessel_Structures_with_Support_Detection.pdf
Bibtex: BibTeX
@inproceedings{droigk2019multiresolution,
Author = {Droigk, Christine and Maass, Marco and Koch, Philipp and Möller, Anita and Mertins, Alfred}, 
Title = {Multiresolution Magnetic Particle Imaging of Vessel Structures with Support Detection}, 
Year = {2019}, 
Pages = {113-114}, 
Booktitle = {9th International Workshop on Magnetic Particle Imaging (IWMPI 2019)}, 
publisher = {Infinite Science Publishing},
address = {New York, USA}, 
month = {March},
}
Christine Droigk, Marco Maaß, Corbinian Englisch, and Alfred Mertins,
Joint Multiresolution and Background Detection Reconstruction for Magnetic Particle Imaging, in Bildverarbeitung für die Medizin 2019 , Handels, Heinz and Deserno, Thomas Martin and Maier, A. and Maier-Hein, K.H. and Palm, Christoph and Tolxdorff, Thomas, Eds. Springer Vieweg, Wiesbaden, 2019, pp. 165-170.
DOI:10.1007/978-3-658-25326-4_35
File: Droigk2019_JointMultiresolutionAndBackgroundDetectionReconstructionForMagneticParticleImaging.pdf
Bibtex: BibTeX
@incollection{droigk2019joint,
   title={Joint Multiresolution and Background Detection Reconstruction for Magnetic Particle Imaging},
   author={Droigk, Christine and Maass, Marco and Englisch, Corbinian and Mertins, Alfred},
   booktitle={Bildverarbeitung f{\"u}r die Medizin 2019},
     series = {Informatik aktuell},
   pages={165-170},
   year={2019},
   publisher = {Springer Vieweg, Wiesbaden},
     organization = {Springer Vieweg, Wiesbaden}, 
editor = {Handels, Heinz and Deserno, Thomas Martin and Maier, A. and Maier-Hein, K.H. and Palm, Christoph and Tolxdorff, Thomas}, 
doi       = {10.1007/978-3-658-25326-4_35}, }

P. Koch, N. Brügge, H. Phan, M. Maaß, and A. Mertins,
Forked Recurrent Neural Network for Hand Gesture Classification Using Inertial Measurement Data, in Proc. 44 th IEEE Intl. Conf. on Acoustics, Speech and Signal Processing (ICASSP 2019) , Brighton, UK , 2019.
Bibtex: BibTeX
@InProceedings{Koch2019b,
  author    = {Koch, P. and Brügge, N. and Phan, H. and Maass, M. and Mertins, A.},
  title     = {Forked Recurrent Neural Network for Hand Gesture Classification Using Inertial Measurement Data},
  booktitle = {Proc. 44 th IEEE Intl. Conf. on Acoustics, Speech and Signal Processing (ICASSP 2019)},
  year      = {2019},
  address   = {Brighton, UK},
  month     = {May},
}
P. Koch, M. Dreier, M. Böhme, M. Maaß, H. Phan, and A. Mertins,
Inhomogeneously Stacked RNN for Recognizing Hand Gestures from Magnetometer Data, in 2019 27th European Signal Processing Conference (EUSIPCO) , 2019. pp. 1-5.
Bibtex: BibTeX
@INPROCEEDINGS{8903132,
  author={P. Koch and M. Dreier and M. Böhme and M. Maass and H. Phan and A. Mertins},
  booktitle={2019 27th European Signal Processing Conference (EUSIPCO)}, 
  title={Inhomogeneously Stacked RNN for Recognizing Hand Gestures from Magnetometer Data}, 
  year={2019},
  volume={},
  number={},
  pages={1-5},}
Anita Möller, Marco Maaß, Tim Jeldrik Parbs, and Alfred Mertins,
Blind Sparsity Based Motion Estimation and Correction Model for Arbitrary MRI Sampling Trajectories, in Proceedings of the 27th {Joint} {Annual} {Meeting} of {ISMRM} , Montreal, Canada , 2019. pp. 4496.
File: ismrm19moeller.pdf
Bibtex: BibTeX
@INPROCEEDINGS{moeller2019,
author = {Möller, Anita and Maass, Marco and Parbs, Tim Jeldrik and Mertins, Alfred},
title = {Blind Sparsity Based Motion Estimation and Correction Model for Arbitrary MRI Sampling Trajectories},
booktitle = {Proceedings of the 27th {Joint} {Annual} {Meeting} of {ISMRM}},
pages = {4496},
year = {2019},
address = {Montreal, Canada},
month = {May},
url ={https://index.mirasmart.com/ISMRM2019/PDFfiles/4496.html}
}
Anita Möller, Marco Maaß, Tim Jeldrik Parbs, and Alfred Mertins,
Blind Rigid Motion Estimation for Arbitrary MRI Sampling Trajectories, in Bildverarbeitung für die Medizin 2019 , Handels, Heinz and Deserno, Thomas M. and Maier, Andreas and Maier-Hein, Klaus Hermann and Palm, Christoph and Tolxdorff, Thomas, Eds. Wiesbaden: Springer Fachmedien Wiesbaden, 2019. pp. 128--133.
DOI:10.1007/978-3-658-25326-4_28
ISBN:978-3-658-25326-4
File: BVM_2019_moeller.pdf
Bibtex: BibTeX
@InProceedings{MoellerBVM_2019,
author="Möller, Anita and Maass, Marco and Parbs, Tim Jeldrik and Mertins, Alfred",
editor="Handels, Heinz and Deserno, Thomas M. and Maier, Andreas and Maier-Hein, Klaus Hermann and Palm, Christoph
and Tolxdorff, Thomas",
title="Blind Rigid Motion Estimation for Arbitrary MRI Sampling Trajectories",
booktitle="Bildverarbeitung für die Medizin 2019",
year="2019",
publisher="Springer Fachmedien Wiesbaden",
address="Wiesbaden",
pages="128--133",
abstract="In this publication, a new blind motion correction algorithm for magnetic resonance imaging for arbitrary sampling trajectories is presented. Patient motion during partial measurements is estimated. Exploiting the image design, a sparse approximation of the reconstructed image is calculated with the alternating direction method of multipliers. The approximation is used with gradient descent methods with derivatives of a rigid motion model to estimate the motion and extract it from the measured data. Adapted gridding is performed in the end to receive reconstruction images without motion artifacts.",
isbn="978-3-658-25326-4",
doi="10.1007/978-3-658-25326-4_28",
}
M. Maaß, C. Droigk, P. Koch, and A. Mertins,
A Strategy for the Extension of the Kaczmarz Algorithm to Different Priors, in 9th International Workshop on Magnetic Particle Imaging (IWMPI 2019) , New York, USA: Infinite Science Publishing, 2019. pp. 111-112.
File: Maass2019.pdf
Bibtex: BibTeX
@InProceedings{Maass2019,
  author    = {Maass, M. and Droigk, C. and Koch, P. and Mertins, A.},
  title     = {A Strategy for the Extension of the Kaczmarz Algorithm to Different Priors},
  Booktitle = {9th International Workshop on Magnetic Particle Imaging (IWMPI 2019)}, 
  year      = {2019},
Pages = {111-112}, 
publisher = {Infinite Science Publishing},
address = {New York, USA}, 
month = { March},
}
P. Koch, M. Dreier, M. Maaß, M. Böhme, H. Phan, and A. Mertins,
A Recurrent Neural Network for Hand Gesture Recognition based on Accelerometer Data, in 2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) , 2019. pp. 5088-5091.
Bibtex: BibTeX
@INPROCEEDINGS{8856844,
  author={P. Koch and M. Dreier and M. Maass and M. Böhme and H. Phan and A. Mertins},
  booktitle={2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)}, 
  title={A Recurrent Neural Network for Hand Gesture Recognition based on Accelerometer Data}, 
  year={2019},
  volume={},
  number={},
  pages={5088-5091},}

2018

Philipp Koch, Huy Phan, Marco Maaß, Fabrice Katzberg, and Alfred Mertins,
Recurrent Neural Network Based Early Prediction of Future Hand Movements, in Proc. 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2018) , Honolulu, Hawaii, United States , 2018.
File: koch2018a.pdf
Bibtex: BibTeX
@InProceedings{koch2018a,
  author    = {Philipp Koch and Huy Phan and Marco Maass and Fabrice Katzberg and Alfred Mertins},
  title     = {Recurrent Neural Network Based Early Prediction of Future Hand Movements},
  booktitle = {Proc. 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2018)},
  year      = {2018},
  address   = {Honolulu, Hawaii, United States},
  month     ={July}
}