Felix Njap

Former Research Associate

Publications

2012

Lars Hertel, and Alexander Schlaefer,
Data Mining for Optimal Sail and Rudder Control of Small Robotic Sailboats, in Robotic Sailing 2012 , Cardiff, Wales: Springer, 2012. pp. 37--48.
B. M. Pohl, Jan O. Jungmann, Olaf Christ, and Ulrich G. Hofmann,
Automated drill-stop by SVM classified audible signals, in 34th Annual International Conference of the IEEE Engineering in Medicine & Biology Society , San Diego CA, USA , 2012.
Bibtex: BibTeX
@INPROCEEDINGS{pohl2012a,
	author = {B. M. Pohl and Jan O. Jungmann and Olaf Christ and Ulrich G. Hofmann},
	booktitle = {34th Annual International Conference of the IEEE Engineering in Medicine & Biology Society},
	title = {Automated drill-stop by SVM classified audible signals},
	year = {2012},
	address={San Diego CA, USA},
	month = {Sep.},
	}
D. Matern, A. P. Condurache, and A. Mertins,
Event Detection using Log-Linear Models for Coronary Contrast Agent Injections, in Proc. Intl. Conf. on Patt. Rec. App. and Meth. (ICPRAM) , Vilamoura - Algarve, Portugal , 2012. pp. 172 -- 179.
File: icprampaper.pdf
Bibtex: BibTeX
@INPROCEEDINGS{Matern12,
  author = {D. Matern and A. P. Condurache and A. Mertins},
  title = {Event Detection using Log-Linear Models for Coronary Contrast Agent Injections},
  booktitle = {Proc. Intl. Conf. on Patt. Rec. App. and Meth. (ICPRAM)},
  address = {Vilamoura - Algarve, Portugal},
  date = {06 - 08 February},
  pages = {172 -- 179},
  year = {2012}
}
Matthias Balzer, Nadine Gdaniec, and Michael Potthoff,
Krylov-space approach to the equilibrium and nonequilibrium single-particle Green’s function, Journal of Physics: Condensed Matter , vol. 24, no. 3, pp. 035603, 2012.
Bibtex: BibTeX
@ARTICLE{balzer2012,
  author={Matthias Balzer and Nadine Gdaniec and Michael Potthoff},
  title={Krylov-space approach to the equilibrium and nonequilibrium single-particle Green’s function},
  journal={Journal of Physics: Condensed Matter},
  volume={24},
  number={3},
  pages={035603},
  year={2012}
}
Lei Chen, Johann Hagenah, and Alfred Mertins,
Feature Analysis For Parkinson's Disease Detection Based on Transcranial Sonography Image, in Proceedings of MICCAI 2012, the 15th International Conference on Medical Image Computing and Computer Assisted Intervention , Springer Berlin Heidelberg, 2012. pp. 272-279.
DOI:10.1007/978-3-642-33454-2_34
ISBN:978-3-642-33453-5
Nadine Gdaniec, Holger Eggers, Peter Börnert, Mariya Doneva, and Alfred Mertins,
Novel Sampling Strategy for Abdominal Imaging with Incomplete Breathholds, in Book of Abstracts , Melbourne, Australia , 2012. pp. 0600.
File: Gdaniec_Breathhold.pdf
Bibtex: BibTeX
@INPROCEEDINGS{Gdaniec2012,
	author = {Nadine Gdaniec and Holger Eggers and Peter Börnert and Mariya Doneva and Alfred Mertins},
	booktitle = {Book of Abstracts},
        series = {Annual Meeting ISMRM},
	title = {Novel Sampling Strategy for Abdominal Imaging with Incomplete Breathholds},
	year = {2012},
	address={Melbourne, Australia},
	month = {Apr.},
        pages = {0600}
	}

2011

A. P. Condurache, and A. Mertins,
Robust core-point-ROI based fingerprint identification using a sparse classifier, in Proc. of Digital Image Computing: Techniques and Applications (DICTA) , Noosa, Queensland, Australia: IEEE, 6-8.2011. pp. 487--493.
File: RobustFingerprint_Condurache.pdf
Bibtex: BibTeX
@inproceedings{Condurache2011b,
  author = {A. P. Condurache and A. Mertins},
  title = {Robust core-point-ROI based fingerprint identification using a sparse classifier},
  booktitle = {Proc. of Digital Image Computing: Techniques and Applications (DICTA)},
  year = {2011},
  address = {Noosa, Queensland, Australia},
  pages = {487--493},
  publisher = {IEEE},
  month = {6-8 December}
}

2009

L. C. Tran, A. Mertins, X. Huang, and E. Dutkiewicz,
Novel Cooperative Communication Schemes for Space-Time-Frequency Coded {MB-OFDM UWB}, in Proc. IEEE Int. Conf. on Signal Processing and Communication Systems (ICSPCS’09) , Omaha, Nebraska , 28-.2009.
File: Tran2009b.pdf
Bibtex: BibTeX
@INPROCEEDINGS{Tran2009b,
  author = {L. C. Tran and A. Mertins and X. Huang and E. Dutkiewicz},
  title = {Novel Cooperative Communication Schemes for Space-Time-Frequency
	Coded {MB-OFDM UWB}},
  booktitle = {Proc. IEEE Int. Conf. on Signal Processing and Communication Systems (ICSPCS’09)},
  year = {2009},
  address = {Omaha, Nebraska},
  month = {28-30 Sept.}
}
L. C. Tran, A. Mertins, E. Dutkiewicz, and X. Huang,
Unitary Differential Space-Time-Frequency Codes for {MB-OFDM UWB}, in Proc. 9th IEEE Int. Symp. on Communication and Information Technology (ISCIT 2009) , Incheon, Korea , 28-.2009. pp. 1161 - 1166.
File: Tran2009c.pdf
Bibtex: BibTeX
@INPROCEEDINGS{Tran2009c,
  author = {L. C. Tran and A. Mertins and E. Dutkiewicz and X. Huang},
  title = {Unitary Differential Space-Time-Frequency Codes for {MB-OFDM UWB}},
  booktitle = {Proc. 9th IEEE Int. Symp. on Communication and Information Technology	(ISCIT 2009)},
  year = {2009},
  address = {Incheon, Korea},
  pages = {1161 - 1166},
  month = {28-30 Sept.}
}

2011

J. O. Jungmann, R. Mazur, M. Kallinger, and A. Mertins,
Robust Combined Crosstalk Cancellation and Listening-Room Compensation, in Proc. IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA 2011) , New Paltz, New York, USA , 2011. pp. 9-12.
File: waspaa2011-joj6.pdf
Bibtex: BibTeX
@INPROCEEDINGS{Jungmann2011c,
  author = {J. O. Jungmann and R. Mazur and M. Kallinger and A. Mertins},
  title = {Robust Combined Crosstalk Cancellation and Listening-Room Compensation},
  booktitle = {Proc. IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA 2011)},
  year = {2011},
  pages = {9-12},
  address = {New Paltz, New York, USA},
  month = {Oct.}
}
B. M. Pohl, Anett Schumacher, and Ulrich G. Hofmann,
Towards an automated, minimal invasive, precision craniotomy on small animals, in IEEE EMBS 5th Conference on Neural Engineering , Cancun, Mexico , 2011.
Bibtex: BibTeX
@INPROCEEDINGS{Cranio,
	author = {B. M. Pohl and Anett Schumacher and Ulrich G. Hofmann},
	booktitle = {IEEE EMBS 5th Conference on Neural Engineering},
	title = {Towards an automated, minimal invasive, precision craniotomy on small animals},
	year = {2011},
	address={Cancun, Mexico},
	month = {Apr.},
	}
Lei Chen, Johann Hagenah, and Alfred Mertins,
Texture Analysis Using Gabor filter Based on Transcranial Sonography Image, in Bildverarbeitung für die Medizin 2011 , Springer Berlin Heidelberg, 2011. pp. 249-253.
DOI:10.1007/978-3-642-19335-4_52
ISBN:978-3-642-19334-7
File: fulltext.pdf
Bibtex: BibTeX
@INPROCEEDINGS{chen-2011,
  author = {Lei Chen and Johann Hagenah and Alfred Mertins},
  booktitle={Bildverarbeitung für die Medizin 2011},
  title = {Texture Analysis Using Gabor filter Based on Transcranial Sonography Image},
  year = {2011},
  publisher={Springer Berlin Heidelberg},
  pages={249-253},
  doi={10.1007/978-3-642-19335-4_52},
  isbn={978-3-642-19334-7}
}
B. Chamadiya, S. Heuer, M. Wagner, and U. G. Hofmann,
Textile Capacitive Electrocardiography for Automotive Environment, in BIODEVICES 2011 - Interntl. Conf. on Biomedical Electronics and Devices , Rome , 2011.
T. Edeler, S. Hussmann, K. Ohliger, and A. Mertins,
Super Resolution Reconstruction Method for Time-of-Flight Range Data Using Complex Compressive Sensing, in Proc. IEEE Instrumentation and Measurement Technology Conference (I2MTC'11) , 2011. pp. 1381-1385.
Bibtex: BibTeX
@INPROCEEDINGS{Edeler-I2MTC-2011-2,
  author = {T. Edeler and S. Hussmann and K. Ohliger and A. Mertins},
  title = {Super Resolution Reconstruction Method for Time-of-Flight Range Data
	Using Complex Compressive Sensing},
  booktitle = {Proc. IEEE Instrumentation and Measurement Technology Conference
	(I2MTC'11)},
  year = {2011},
  pages = {1381-1385},
  month = {May}
}
Ch. Murschall, B. M. Pohl, and U. G. Hofmann,
Shuttle supported insertion of polyimid microprobes - Targeting precision in a translucent brain model,, in DGBMT , Freiburg, Deutschland , 2011.
Bibtex: BibTeX
@inproceedings{shuttlePoly,
	author = {Ch. Murschall and B. M. Pohl and U. G. Hofmann},
	booktitle = {DGBMT},
	title = {Shuttle supported insertion of polyimid microprobes - Targeting precision in a translucent brain model,},
year = {2011},
address = {Freiburg, Deutschland},
	month = {Oct.},
}
J. O. Jungmann, T. Mei, S. Goetze, and A. Mertins,
Room Impulse Response Reshaping by Joint Optimization of Multiple p-Norm Based Criteria, in Proc. EUSIPCO 2011 , Barcelona, Spain , 2011. pp. 1658-1662.
File: EUSIPCO2011_joj_01.pdf
Bibtex: BibTeX
@INPROCEEDINGS{Jungmann2011b,
  author = {J. O. Jungmann and T. Mei and S. Goetze and A. Mertins},
  title = {Room Impulse Response Reshaping by Joint Optimization of Multiple p-Norm Based Criteria},
  booktitle = {Proc. EUSIPCO 2011},
  year = {2011},
  pages = {1658-1662},
  address = {Barcelona, Spain},
  month = {Aug.}
}
Florian Müller, and Alfred Mertins,
Robust Continuous Speech Recognition through Combination of Invariant-Feature Based Systems, in Proc. German Conf. Speech Signal Processing (ESSV 2011) , Aachen, Germany , 2011. pp. 229-236.
File: ESSV2011_MuellerMertins_ROVER_download.pdf
Bibtex: BibTeX
@INPROCEEDINGS{Muller2011a,
  author = {Florian M{\"u}ller and Alfred Mertins},
  title = {Robust Continuous Speech Recognition through Combination of Invariant-Feature
	Based Systems},
  booktitle = {Proc. German Conf. Speech Signal Processing (ESSV 2011)},
  year = {2011},
  pages = {229-236},
  address = {Aachen, Germany},
  month = {Sept.}
}
J. O. Jungmann, S. Goetze, and A. Mertins,
Room Impulse Response Reshaping by p-Norm Optimization Based on Estimates of Room Impulse Responses, in 37th German Annual Conference on Acoustics (DAGA 2011) , Duesseldorf, Germany , 2011. pp. 611-612.
File: DAGA2011_joj.pdf
Bibtex: BibTeX
@INPROCEEDINGS{Jungmann2011a,
  author = {J. O. Jungmann and S. Goetze and A. Mertins},
  title = {Room Impulse Response Reshaping by p-Norm Optimization Based on Estimates of Room Impulse Responses},
  booktitle = {37th German Annual Conference on Acoustics (DAGA 2011)},
  year = {2011},
  pages = {611-612},
  address = {Duesseldorf, Germany},
  month = {Mar.}
}
T. Edeler, S. Hussmann, K. Ohliger, and A. Mertins,
Parameter Calibration of a novel super-resolution model for a compressed-sensing measurement setup, in Proc. IEEE Instrumentation and Measurement Technology Conference (I2MTC'11) , 2011. pp. 1376-1380.
Bibtex: BibTeX
@INPROCEEDINGS{Edeler-I2MTC-2011-1,
  author = {T. Edeler and S. Hussmann and K. Ohliger and A. Mertins},
  title = {Parameter Calibration of a novel super-resolution model for a compressed-sensing
	measurement setup},
  booktitle = {Proc. IEEE Instrumentation and Measurement Technology Conference
	(I2MTC'11)},
  year = {2011},
  volume = {?},
  pages = {1376-1380},
  month = {May}
}
Florian Müller, and Alfred Mertins,
Contextual invariant-integration features for improved speaker-independent speech recognition, Speech Communication , vol. 53, no. 6, pp. 830 - 841, 2011.
DOI:http://dx.doi.org/10.1016/j.specom.2011.02.002
File: Mueller-Mertins-SpeechCom2011.pdf
Bibtex: BibTeX
@ARTICLE{Muller2011,
  author = {Florian Müller and Alfred Mertins},
  title = {Contextual invariant-integration features for improved speaker-independent
	speech recognition},
  journal = {Speech Communication},
  year = {2011},
  volume = {53},
  pages = {830 - 841},
  number = {6},
  abstract = {This work presents a feature-extraction method that is based on the
	theory of invariant integration. The invariant-integration features
	are derived from an extended time period, and their computation has
	a very low complexity. Recognition experiments show a superior performance
	of the presented feature type compared to cepstral coefficients using
	a mel filterbank (MFCCs) or a gammatone filterbank (GTCCs) in matching
	as well as in mismatching training-testing conditions. Even without
	any speaker adaptation, the presented features yield accuracies that
	are larger than for MFCCs combined with vocal tract length normalization
	(VTLN) in matching training-test conditions. Also, it is shown that
	the invariant-integration features (IIFs) can be successfully combined
	with additional speaker-adaptation methods to further increase the
	accuracy. In addition to standard MFCCs also contextual MFCCs are
	introduced. Their performance lies between the one of MFCCs and IIFs.},
  doi = {http://dx.doi.org/10.1016/j.specom.2011.02.002},
  issn = {0167-6393},
  keywords = {Speech recognition}
}
S. Goetze, F. Xiong, J. O. Jungmann, M. Kallinger, K.-D. Kammeyer, and A. Mertins,
{S}ystem {I}dentification of {E}qualised {R}oom {I}mpulse {R}esponses by an {A}coustic {E}cho {C}anceller using {P}roportionate LMS {A}lgorithms, in Proc. 130th AES Convention , London, UK , 2011.
File:
Bibtex: BibTeX
@INPROCEEDINGS{GXJKKM11,
  author = {S. Goetze and F. Xiong and J. O. Jungmann and M. Kallinger
and K.-D. Kammeyer and A. Mertins},
  title = {{S}ystem {I}dentification of {E}qualised {R}oom {I}mpulse
{R}esponses by an {A}coustic {E}cho {C}anceller using {P}roportionate
LMS {A}lgorithms},
  booktitle = {Proc. 130th AES Convention},
  year = {2011},
  address = {London, UK},
  month = {May},
  abstract = {Hands-free telecommunication systems usually employ
subsystems for	acoustic echo cancellation (AEC), listening-room
compensation (LRC) and noise reduction in combination. This contribution
discusses a combined system of a two-stage AEC filter and an LRC filter
to remove reverberation introduced by the listening room. An inner AEC
is used to achieve initial echo reduction and to perform system
identification needed for the LRC filter. An additional outer AEC is
used to further reduce the acoustic echoes. The performance 	of
proportionate filter update schemes such as the so-called  proportionate
normalized least mean squares algorithm (PNLMS) or the improved PNLMS
(IPNLMS) for system identification of equalized impulse response (IR)
are shown and the mutual influences of the subsystems are analyzed. If
the LRC filter succeeds in shaping a sparse overall IR for the
concatenated system of LRC filter and room impulse response (RIR), the
PNLMS performs best since it is optimized for the identification of
sparse IRs. However, the equalization may be imperfect due to channel
estimation errors in periods of convergence and due to the so-called
tail-effect of AEC, i.e. the fact that only the first part of an RIR is
identified in practical systems. The IPNLMS is more appropriate in this
case to identify the equalized IR.},
  owner = {goe},
  timestamp = {2011.03.02},
  url = {http://www.aes.org/events/130/}
}
R. Mazur, J. O. Jungmann, and A. Mertins,
On CUDA Implementation of a Multichannel Room Impulse Response Reshaping Algorithm Based on p-Norm Optimization, in Proc. Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA) , New Paltz, USA , 2011. pp. 305-308.
File: waspaa2011-mazur.pdf
Bibtex: BibTeX
@INPROCEEDINGS{mazur2011c,
  author = {R. Mazur and J. O. Jungmann and A. Mertins},
  title = {On CUDA Implementation of a Multichannel Room Impulse Response Reshaping
	Algorithm Based on p-Norm Optimization},
  booktitle = {Proc. Workshop on Applications of Signal Processing to Audio and
	Acoustics (WASPAA)},
  year = {2011},
  pages = {305-308},
  address = {New Paltz, USA},
  month = {Oct.},
}
R. Mazur, and A. Mertins,
A CUDA Implementation of Independent Component Analysis in the Time-Frequency Domain, in Proc. European Signal Processing Conference , Barcelona, Spain , 2011. pp. 512-514.
File: eusipco2011-mazur.pdf
Bibtex: BibTeX
@INPROCEEDINGS{mazur2011b,
  author = {R. Mazur and A. Mertins},
  title = {A CUDA Implementation of Independent Component Analysis in the Time-Frequency
	Domain},
  booktitle = {Proc. European Signal Processing Conference},
  year = {2011},
 pages = {512-514},
  address = {Barcelona, Spain},
  month = {Aug},
 }
Stefan Strahl, Heiko Hansen, and Alfred Mertins,
A Dynamic Fine-Grain Scalable Compression Scheme with Application to Progressive Audio Coding, IEEE Trans. on Audio, Speech, and Language Processing , vol. 19, no. 1, pp. 14-23, 2011.
File: Strahl-IEEETASL.pdf
Bibtex: BibTeX
@ARTICLE{Strahl-Hansen-Mertins-2010,
  author = {Stefan Strahl and Heiko Hansen and Alfred Mertins},
  title = {A Dynamic Fine-Grain Scalable Compression Scheme with Application
	to Progressive Audio Coding},
  journal = {IEEE Trans. on Audio, Speech, and Language Processing},
  year = {2011},
  volume = {19},
  pages = {14-23},
  number = {1}
}
M. Kh. Hazrati, V. Subramanian, and U. G. Hofmann,
A Four-Class Brain Computer Interface for Robot Control, in ISSNIP Biosignals and Biorobotic Conference , Vitoria, Brazil , 2011.
File:
Bibtex: BibTeX
@INPROCEEDINGS{Hazrati1101,
author = {M. Kh. Hazrati and V. Subramanian and U. G. Hofmann},
title = {A Four-Class Brain Computer Interface for Robot Control},
booktitle = {ISSNIP Biosignals and Biorobotic Conference},
year      = {2011},
month     = {January},
date      = {6--9},
url = {http://www.brc2011.org/},
address = {Vitoria, Brazil}
}