Felix Njap

Former Research Associate

Publications

2010

K. Ohliger, T. Edeler, S. Hussmann, A. P. Condurache, and A. Mertins,
A novel approach of initializing region-based active contours in noisy images by means of higher order statistics and dissimilarity, in Int. Conf. on Mechatronics and Automation (ICMA) , Xi'an, China , 2010. pp. 477 -482.
File: Ohliger-ICMA-2010.pdf
Bibtex: BibTeX
@INPROCEEDINGS{Ohliger-ICMA2010,
  author = {Ohliger, K. and Edeler, T. and Hussmann, S. and Condurache, A. P.
	and Mertins, A.},
  title = {A novel approach of initializing region-based active contours in
	noisy images by means of higher order statistics and dissimilarity},
  booktitle = {Int. Conf. on Mechatronics and Automation (ICMA)},
  year = {2010},
  address = {Xi'an, China},
  pages = {477 -482},
  month = {Aug.}
}
K. Ohliger, T. Edeler, A. P. Condurache, and A. Mertins,
A Novel Approach of Initializing Region-Based Active Contours in Noisy Images by Means of Unimodality Analysis, in 10th IEEE International Conference on Signal Processing (ICSP) , Beijing, China , 2010. pp. 885-888.
File: ohliger-icsp2010.pdf
Bibtex: BibTeX
@INPROCEEDINGS{Ohliger-ICSP2010-3,
author={Ohliger, K. and Edeler, T. and Condurache, A. P. and Mertins, A.},
booktitle={10th IEEE International Conference on Signal Processing (ICSP)}, 
title={A Novel Approach of Initializing Region-Based Active Contours in Noisy Images by Means of Unimodality Analysis},
year={2010},
month={Oct.},
address = {Beijing, China},
pages={885-888}
}
K. Ohliger, T. Edeler, S. Hussmann, A.P. Condurache, and A. Mertins,
A Novel Approach of Initialising Region-Based Active Contours in Noisy Images by Means of Higher Order Statistics and Dissimilarity, in Proc. IEEE Int. Conf. on Mechatronics and Automation , Xi'an, China , 2010.
Mehrnaz Kh. Hazrati, and Abbas Erfanian,
An online EEG-based brain-computer interface for controlling hand grasp using an adaptive probabilistic neural network, Medical Engineering & Physics , vol. 32, no. 7, pp. 730 - 739, 2010.
DOI:DOI: 10.1016/j.medengphy.2010.04.016
File: 795f2b7e72030fe9f4778cf1c4d2921c
Bibtex: BibTeX
@article{Hazrati2010730,
title = {An online EEG-based brain-computer interface for controlling hand grasp using an adaptive probabilistic neural network},
journal = "Medical Engineering & Physics",
volume = {32},
number = {7},
pages = {730 - 739},
year = {2010},
note = {},
issn = {1350-4533},
doi = {DOI: 10.1016/j.medengphy.2010.04.016},
url = {http://www.sciencedirect.com/science/article/B6T9K-505FHXR-1/2/795f2b7e72030fe9f4778cf1c4d2921c},
keywords = "Online training",
keywords = "Brain-computer interface (BCI)",
keywords = "Electroencephalogram (EEG)",
keywords = "Motor imagery",
keywords = "Machine learning",
keywords = "Subject training",
keywords = "Probabilistic neural network"
author = {Mehrnaz Kh. Hazrati and Abbas Erfanian},
}
M. Doneva, P. Börnert, H. Eggers, A. Mertins, J. Pauly, and M. Lustig,
Compressed Sensing for Chemical Shift based Water-Fat Separation, Magnetic Resonance in Medicine , vol. 64, no. 6, pp. 1749-1759, 2010.
DOI:http://onlinelibrary.wiley.com/doi/10.1002/mrm.22563/pdf
Bibtex: BibTeX
@ARTICLE{Doneva-MRM-Shift,
  author = {M. Doneva and P. B{\"o}rnert and H. Eggers and A. Mertins and J. Pauly
	and M. Lustig},
  title = {Compressed Sensing for Chemical Shift based Water-Fat Separation},
  journal = {Magnetic Resonance in Medicine},
 pages = {1749-1759},
 month = {Dec.},
volume={64},
number={6},
  year = {2010},
doi={http://onlinelibrary.wiley.com/doi/10.1002/mrm.22563/pdf}
}
M. Doneva, P. Börnert, H. Eggers, C. Stehning, J. Sénégas, and A. Mertins,
Compressed Sensing Reconstruction for Magnetic Resonance Parameter Mapping, Magnetic Resonance in Medicine , vol. 64, no. 4, pp. 1114-1120, 2010.
DOI:http://onlinelibrary.wiley.com/doi/10.1002/mrm.22483/pdf
Bibtex: BibTeX
@ARTICLE{Doneva-MRM-2010-Mapping,
  author = {M. Doneva and P. B{\"o}rnert and H. Eggers and C. Stehning and J. S{\'e}n{\'e}gas and A. Mertins},
  title = {Compressed Sensing Reconstruction for Magnetic Resonance Parameter
	Mapping},
  journal = {Magnetic Resonance in Medicine},
  year = {2010},
  volume = {64},
  pages = {1114-1120},
  number = {4},
  month = {Oct.},
doi = {http://onlinelibrary.wiley.com/doi/10.1002/mrm.22483/pdf},
}
M. Doneva, K. Nehrke, A. Mertins, and P. Börnert,
Compressive B1^{+} mapping: Towards faster transmit coil sensitivity mapping, in Proc. Joint Annual Meeting ISMRM- ESMRMB , Stockholm, Sweden , 2010. pp. 2833.
File: 2833_246.pdf
Bibtex: BibTeX
@INPROCEEDINGS{DonevaISMRM2010_2,
author = {Doneva, M.  and Nehrke, K. and Mertins, A. and Börnert, P. },
title = {Compressive B1^{+} mapping: Towards faster transmit coil sensitivity mapping},
booktitle = {Proc. Joint Annual Meeting ISMRM- ESMRMB},
address = {Stockholm, Sweden},
year = {2010}, 
pages = {2833},
month = {May}
} 
M. Hazrati, A. Erfanian, and U.G. Hofmann,
Extracted fractal components from electroencephalogram signal as features In brain computer interface, in EURASIP Conference Biosignal 2010 , Brno, Czech Republic , 2010.
Bibtex: BibTeX
@INPROCEEDINGS{HazEurasipBiosig2010,
  author = {M. Hazrati and A. Erfanian and U.G. Hofmann},
  title = {Extracted fractal components from electroencephalogram signal as
	features In brain computer interface},
  booktitle = {EURASIP Conference Biosignal 2010},
  year = {2010},
  series = {Series Extracted fractal components from electroencephalogram signal
	as features In brain computer interface},
  address = {Brno, Czech Republic}
}
Y. Xie, T. Bonin, S. Löffler, G. Hüttmann, V. Tronnier, and U.G. Hofmann,
Fiber spectral domain optical coherence tomography for in-vivo rat brain imaging, in SPIE's Photonics Europe (EPE10) , O. Dössel, Eds. Brussels , 2010.
Bibtex: BibTeX
@INPROCEEDINGS{XieEPE2010,
  author = {Y. Xie and T. Bonin and S. L{\"o}ffler and G. H{\"u}ttmann and V. Tronnier
	and U.G. Hofmann},
  title = {Fiber spectral domain optical coherence tomography for in-vivo rat
	brain imaging},
  booktitle = {SPIE's Photonics Europe (EPE10)},
  year = {2010},
  editor = {O. Dössel},
  series = {Series Fiber spectral domain optical coherence tomography for in-vivo
	rat brain imaging},
  address = {Brussels}
}
Radoslaw Mazur, and Alfred Mertins,
A Method for Filter Equalization in Convolutive Blind Source Separation, in Proc. 9th Int. Conf. on Latent Variable Analysis and Signal Separation , St. Malo, France , 2010.
File: 63650328.pdf
Bibtex: BibTeX
@INPROCEEDINGS{Mazur-ICA2010,
  author = {Radoslaw Mazur and Alfred Mertins},
  title = {A Method for Filter Equalization in Convolutive Blind Source Separation},
  booktitle = {Proc. 9th Int. Conf. on Latent Variable Analysis and Signal Separation},
  year = {2010},
  address = {St. Malo, France},
  month = {Sept.}
}

2008

S. J. Richerson, A. P. Condurache, J. A. Lohmeyer, K. Schultz, and P. Ganske,
An Initial Approach to Segmentation and Analysis of Nerve Cells using Ridge Detection, in Image Analysis and Interpretation, 2008. SSIAI 2008. IEEE Southwest Symposium on , 24-.2008. pp. 113--116.
File: Condurache_SSIAI08.pdf
Bibtex: BibTeX
@INPROCEEDINGS{Richerson2008,
  author = {S. J. Richerson and A. P. Condurache and J. A. Lohmeyer and K. Schultz and P. Ganske},
  title = {An Initial Approach to Segmentation and Analysis of Nerve Cells using
	Ridge Detection},
  booktitle = {Image Analysis and Interpretation, 2008. SSIAI 2008. IEEE Southwest Symposium on},
  year = {2008},
  pages = {113--116},
  month = {24-26 March},
}

2007

V. Mildner, S. Goetze, K. D. Kammeyer, and A. Mertins,
Optimization of Gabor Features for Text-Independent Speaker Identification, in Proc. IEEE Int. Symp. on Circuits and Systems , New Orleans, USA , 27-.2007. pp. 3932--3935.
File: MGKM07a_ISCAS07_paper.pdf
Bibtex: BibTeX
@INPROCEEDINGS{Mildner2007,
  author = {V. Mildner and S. Goetze and K. D. Kammeyer and A. Mertins},
  title = {Optimization of Gabor Features for Text-Independent Speaker Identification},
  booktitle = {Proc. IEEE Int. Symp. on Circuits and Systems},
  year = {2007},
  pages = {3932--3935},
  address = {New Orleans, USA},
  month = {27-30 May}
}

2009

Tiemin Mei, Alfred Mertins, and Markus Kallinger,
Room Impulse Response Reshaping/shortening Based on Least Mean Squares Optimization with Infinity Norm Constraint, in Proc. 16th International Conference on Digital Signal Processing (DSP 2009) , Santorini, Greece , 2009. pp. 1-6.
File: dsp2009_157.pdf
Bibtex: BibTeX
@INPROCEEDINGS{MMK-DSP-2009,
  author = {Tiemin Mei and Alfred Mertins and Markus Kallinger},
  title = {Room Impulse Response Reshaping/shortening Based on Least Mean Squares
	Optimization with Infinity Norm Constraint},
  booktitle = {Proc. 16th International Conference on Digital Signal Processing (DSP 2009)},
  year = {2009},
  pages = {1-6},
  address = {Santorini, Greece},
  month = {July}
}
U. G. Hofmann, T. Michalski, V. Tronnier, and M. M. Bonsanto,
Personalized Pain Diary on a Handheld Device, in IFMBE Proceedings of the World Congress on Medical Physics and Biomedical Engineering , Springer, 2009.
File: Hofmann_WC2009-1_01.pdf
Bibtex: BibTeX
@INPROCEEDINGS{WC2009Hofmann,
  author = {U. G. Hofmann and T. Michalski and V. Tronnier and M. M. Bonsanto},
  title = {Personalized Pain Diary on a Handheld Device},
  booktitle = {IFMBE Proceedings of the World Congress on Medical Physics and Biomedical
	Engineering},
  year = {2009},
  volume = {25},
  number = {I-XIII},
  publisher = {Springer}
}
K. Mankodiya, S. Vogt, A. Kundu, M. Klostermann, J. Pohl, A. Ayoub, H. Gehring, and U. G. Hofmann,
Portable electrophysiologic monitoring based on the OMAP-family processors from a beginners prospective, in IEEE-DSP 2009 , Santorini, Greece , 2009.
File: DSP2009_Mankodiya.pdf
Bibtex: BibTeX
@INPROCEEDINGS{MankodiyaDSP2009,
  author = {K. Mankodiya and S. Vogt and A. Kundu and M. Klostermann and J. Pohl
	and A. Ayoub and H. Gehring and U. G. Hofmann},
  title = {Portable electrophysiologic monitoring based on the OMAP-family processors
	from a beginners prospective},
  booktitle = {IEEE-DSP 2009},
  year = {2009},
  address = {Santorini, Greece},
  month = {July 5-7}
}
Christian Kier, Karsten Meyer-Wiethe, Günter Seidel, and Alfred Mertins,
Quality improvements for ultrasound-based cerebral perfusion analysis, in Computer Assisted Radiology and Surgery -- CARS , 2009.
Bibtex: BibTeX
@INPROCEEDINGS{Kier2009b,
  author = {Christian Kier and Karsten Meyer-Wiethe and Günter Seidel and Alfred
	Mertins},
  title = {Quality improvements for ultrasound-based cerebral perfusion analysis},
  booktitle = {Computer Assisted Radiology and Surgery -- CARS},
  year = {2009}
}

Thet Htar Nwe, Alexandru P. Condurache, Martin Simon, Alfred Mertins, and Ulrich Hofmann,
Quantification of uterine peristalis in cine-MR images by block matching and optical flow , in 11th International Congress of the IUPESM - Medical Physics and Biomedical Engineering World Congress , München , 2009.
Bibtex: BibTeX
@INPROCEEDINGS{Condurache2009c,
  author = {Thet Htar Nwe and Alexandru P. Condurache and Martin Simon and Alfred Mertins and Ulrich Hofmann},
  title = {Quantification of uterine peristalis in cine-MR images by block matching and optical flow },
  booktitle = {11th International Congress of the IUPESM - Medical Physics and Biomedical Engineering World Congress},
  year = {2009},
  month = {Sept.},
  address = {München},
  organization = {IUPESM}
}
L. Ramrath, S. Vogt, W. Jensen, A. Schweikard, and U.G. Hofmann,
Robot-Assisted Electrophysiological Brain Mapping: A feasibility study, Biomedizinische Technik / Biomedical Engineering , vol. 54, no. 1, pp. 8-13, 2009.
Bibtex: BibTeX
@ARTICLE{Ramrath2009,
author = {L. Ramrath and S. Vogt and W. Jensen and A. Schweikard and U.G. Hofmann},
   title = {Robot-Assisted Electrophysiological Brain Mapping: A feasibility study},
   journal = {Biomedizinische Technik / Biomedical Engineering},
year = {2009},
  volume = {54},
  pages = {8-13},
  number = {1},
  month = {Jan.}
}
Christian Kier, Günter Seidel, Norbert Brüggemann, Johann Hagenah, Christine Klein, Til Aach, and Alfred Mertins,
Ultraschall zur Früherkennung von Parkinson, in Medizinische Bildverarbeitung und Mustererkennung , Lübeck , 2009. pp. 1241–1248.
File: 04_kier_seidel_brueggemann_hagenah_klein_aach.pdf
Bibtex: BibTeX
@INPROCEEDINGS{Kier2009,
  author = {Christian Kier and G{\"u}nter Seidel and Norbert Brüggemann and Johann Hagenah and Christine Klein and Til Aach and Alfred Mertins},
  title = {Ultraschall zur Früherkennung von Parkinson},
  booktitle = {Medizinische Bildverarbeitung und Mustererkennung},
  year = {2009},
  month = {Oct.},
  series = {Lecture Notes in Informatics},
  volume = {P154},
  pages = {1241–1248},
  address = {Lübeck},
  organization = {GI}
}
T. Mei, A. Mertins, and M. Kallinger,
Room impulse response shortening with infinity-norm optimization, in Proc. IEEE Int. Conf. Acoust., Speech, and Signal Processing , Taipei, Taiwan , 2009. pp. 3745-3748.
File: ICASSP2009_final.pdf
Bibtex: BibTeX
@INPROCEEDINGS{Mei2009,
  author = {T. Mei and A. Mertins and M. Kallinger},
  title = {Room impulse response shortening with infinity-norm optimization},
  booktitle = {Proc. IEEE Int. Conf. Acoust., Speech, and Signal Processing},
  year = {2009},
  pages = {3745-3748},
  address = {Taipei, Taiwan},
  month = {April}
}
R. Mazur, and A. Mertins,
Simplified Formulation of a Depermutation Criterion in Convolutive Blind Source Separation, in Proc. European Signal Processing Conference , Glasgow, Scotland , 2009. pp. 1467-1470.
File: mazur2009c.pdf
Bibtex: BibTeX
@INPROCEEDINGS{mazur2009c,
  author = {R. Mazur and A. Mertins},
  title = {Simplified Formulation of a Depermutation Criterion in Convolutive
	Blind Source Separation},
  booktitle = {Proc. European Signal Processing Conference},
  year = {2009},
  pages = {1467-1470},
  address = {Glasgow, Scotland},
  month = {Aug}
}
Le Chung Tran, and Alfred Mertins,
Space-Time-Frequency Code Implementation in {MB-OFDM} {UWB} Communications: Design Criteria and Performance, IEEE Trans. Wireless Communications , vol. 8, no. 2, pp. 701-713, 2009.
File: STCMBOFDMUWB_final.pdf
Bibtex: BibTeX
@ARTICLE{Tran2009twc,
  author = {Le Chung Tran and Alfred Mertins},
  title = {Space-Time-Frequency Code Implementation in {MB-OFDM} {UWB} Communications: Design Criteria and Performance},
  journal = {IEEE Trans. Wireless Communications},
volume={8},
number={2},
pages={701-713},
month={Feb.},
  year = {2009}
}
T. Edeler, K. Ohliger, S. Hussmann, and A. Mertins,
Super resolution of time-of-flight depth images under consideration of spatially varying noise variance, in 16th IEEE Int. Conf. on Image Processing (ICIP) , Cairo, Egypt , 2009. pp. 1185 -1188.
File: edeler-icip2009.pdf
Bibtex: BibTeX
@INPROCEEDINGS{Edeler-ICIP-2009,
  author = {Edeler, T. and Ohliger, K. and Hussmann, S. and Mertins, A.},
  title = {Super resolution of time-of-flight depth images under consideration
	of spatially varying noise variance},
  booktitle = {16th IEEE Int. Conf. on Image Processing (ICIP)},
  year = {2009},
  pages = {1185 -1188},
  address={Cairo, Egypt},
  month = {Nov.}
}
Alexandru Paul Condurache, Alfred Mertins, and Til Aach,
Supervised, hysteresis-based segmentation of retinal images using the linear-classifier percentile, in Medizinische Bildverarbeitung und Mustererkennung (GI Jahrestagung) , Lübeck , 2009. pp. 1285--1293.
File: lcp_hysteresis_condurache.pdf
Bibtex: BibTeX
@INPROCEEDINGS{Condurache2009b,
  author = {Alexandru Paul Condurache and Alfred Mertins and Til Aach},
  title = {Supervised, hysteresis-based segmentation of retinal images using the linear-classifier percentile},
  booktitle = {Medizinische Bildverarbeitung und Mustererkennung (GI Jahrestagung)},
  year = {2009},
  month = {Oct.},
  series = {Lecture Notes in Informatics},
  volume = {P154},
  address = {Lübeck},
  organization = {GI},
  pages = {1285--1293}
}
T. Kipshagen, M. Graw, V. Tronnier, M. Bonsanto, and U. G. Hofmann,
Touch- and marker-free interaction with medical software, in IFMBE Proceedings of the World Congress on Medical Physics and Biomedical Engineering , Springer, 2009.
File: WC2009_Graw.pdf
Bibtex: BibTeX
@INPROCEEDINGS{WC2009Graw,
  author = {T. Kipshagen and M. Graw and V. Tronnier and M. Bonsanto and U. G. Hofmann},
  title = {Touch- and marker-free interaction with medical software},
  booktitle = {IFMBE Proceedings of the World Congress on Medical Physics and Biomedical
	Engineering},
  year = {2009},
  volume = {25},
  number = {I-XIII},
  publisher = {Springer}
}