Sven Ole Aase

Professor i signal- og bildebehandling

Sven Ole Aase

Kontakt

Telefon: 51832009

E-post: sven.o.aase@uis.no

Rom: KE E-437

Organisasjonsenhet

Det teknisk-naturvitenskapelige fakultet

Institutt for data- og elektroteknologi

Kort om meg

CERN fellow Geneve 1993-1994

Førsteamanuensis UiS 1994-2001

Professor UiS 2001-d.d.

Insitituttleder 2001-2015

Forskningsområder:

Digital signalbehandling, digitale effektforsterkere, biomedisinsk signalbehandling, anvendt matematikk.

Underviste emner: 

ELE640 Videregående signalbehandling
ELE650 Optimering med anvendelser
YMF100 Realfag 1
ELE300 Signaler og systemer

Publikasjoner

Vitenskapelige publikasjoner

Chierchie, Fernando; Aase, Sven Ole

(2015)

Volterra models for digital PWM and their inverses.

IEEE Transactions on Circuits and Systems I: Regular Papers.

ISSN 1549-8328.

Volum 62.

Hefte 10.

s.2606-2616.

DOI: 10.1109/TCSI.2015.2476299

Aase, Sven Ole

(2014)

Digital removal of pulse-width-modulation-induced distortion in class-D audio amplifiers.

IET Signal Processing.

ISSN 1751-9675.

Volum 8.

Hefte 6.

s.680-692.

DOI: 10.1049/iet-spr.2013.0383

Aase, Sven Ole

(2012)

A prefilter equalizer for pulse width modulation.

Signal Processing.

ISSN 0165-1684.

Volum 92.

Hefte 10.

s.2444-2453.

DOI: 10.1016/j.sigpro.2012.03.006

Risdal, Martin; Aase, Sven Ole; Kramer-Johansen, Jo; Eftestøl, Trygve

(2008)

Automatic identification of return of spontaneous circulation during cardiopulmonary resuscitation.

IEEE Transactions on Biomedical Engineering.

ISSN 0018-9294.

Volum 55.

s.60-68.

Risdal, Martin; Aase, Sven Ole; Kramer-Johansen, Jo; Eftestøl, Trygve

(2008)

Automatic identification of return of spontaneous circulation during cardiopulmonary resuscitation.

IEEE Transactions on Biomedical Engineering.

ISSN 0018-9294.

Volum 55.

Hefte 1.

s.60-68.

Losert, Heidrun; Risdal, Martin; Sterz, Fritz; Nysæther, Jon; Köhler, Klemens; Eftestøl, Trygve; Wandaller, Cosima; Myklebust, Helge; Uray, Thomas; Aase, Sven Ole; laggner, anton n.

(2007)

Thoracic-impedance changes measured via defibrillator pads can monitor signs of circulation.

Resuscitation.

ISSN 0300-9572.

Volum 73.

Aase, Sven Ole; Ruoff, Peter

(2007)

Semi-algebraic optimization of temperature compensation in a general switch-type negative feedback model of circadian clocks.

Journal of Mathematical Biology.

ISSN 0303-6812.

Volum doi:10.1007/s00285-0.

s.279-292.

Risdal, Martin; Aase, Sven Ole; Stavland, Mette; Eftestøl, Trygve

(2007)

Impedance-based ventilation detection during cardiopulmonary resuscitation.

IEEE Transactions on Biomedical Engineering.

ISSN 0018-9294.

Volum 54.

Hefte 12.

s.2237-2245.

Eftestøl, Trygve; Ryen, Tom; Aase, Sven Ole; Strässle, Cassian; Boos, Marcus; Schuster, Guido M.; Ruoff, Peter

(2006)

Eukaryotic gene prediction by spectral analysis and pattern recognition techniques. I: Proceedings of the 7th nordic signal processing symposium.

IEEE conference proceedings.

Risdal, Martin; Losert, Heidrun; Sterz, Fritz; Aase, Sven Ole; Eftestøl, Trygve

(2006)

Using thoracic impedance for identification of return of spontaneous circulation during resuscitation. I: Proceedings of the 7th nordic signal processing symposium.

IEEE conference proceedings.

Skretting, Karl; Husøy, John Håkon; Aase, Sven Ole

(2006)

General design algorithm for sparse frame expansions.

Signal Processing.

ISSN 0165-1684.

Volum 86.

Hefte 1.

s.117-126.

Ryen, Tom; Aase, Sven Ole; Husøy, John Håkon

(2005)

Rate-distortion optimal frame based compression of ECG signals. I: Norsk symposium i signalbehandling.

Tapir Akademisk Forlag.

Risdal, Martin; Aase, Sven Ole; Eftestøl, Trygve

(2005)

Examining the Potential of Using Thorax Impedance Measured by Automated External Defibrillators for Quantification of Circulation. I: Conference Proceedings of Computers in Cardiology Conference, 2005.

IEEE (Institute of Electrical and Electronics Engineers).

Risdal, Martin; Stavland, Mette; Aase, Sven Ole; Eftestøl, Trygve

(2005)

Impedance-based ventilation detection during cardiopulmonary resuscitation using a neural network.

International Federation for Medical and Biological Engineering Proceedings.

ISSN 1680-0737.

Volum 11.

Risdal, Martin; Losert, Heidrun; Nysæther, Jon; Aase, Sven Ole; Sterz, Fritz; Eftestøl, Trygve

(2005)

Non-invasive ventilation monitoring during cardiopulmonary resuscitation by means of thoracic impedance.

International Federation for Medical and Biological Engineering Proceedings.

ISSN 1680-0737.

Volum 11.

Risdal, Martin; Losert, Heidrun; Nysæther, Jon; Aase, Sven Ole; Sterz, Fritz; Eftestøl, Trygve

(2005)

Ventilation classification for cardiopulmonary resuscitation quality monitoring using thoracic impedance.

International Federation for Medical and Biological Engineering Proceedings.

ISSN 1680-0737.

Volum 11.

Risdal, Martin; Aase, Sven Ole; Eftestøl, Trygve

(2005)

Arbitrary feature space dimensionality reduction with focus on loss of discrimination for two-class problems. I: NORSIG 2005.

Tapir Akademisk Forlag.

Eilevstjønn, Joar; Eftestøl, Trygve; Aase, Sven Ole; Myklebust, Helge; Husøy, John Håkon; Steen, Petter Andreas

(2004)

Feasibility of shock advice analysis during CPR through removal of CPR artefacts from the human ECG.

Resuscitation.

ISSN 0300-9572.

Volum 61.

s.131-141.

Eilevstjønn, Joar; Eftestøl, Trygve; Aase, Sven Ole; Myklebust, Helge; Husøy, John Håkon; Steen, Petter Andreas

(2004)

Feasibility of shock advice analysis during CPR through removal of CPR artefacts from the human ECG.

Resuscitation.

ISSN 0300-9572.

Volum 61.

Hefte 61.

s.131-141.

Husøy, John Håkon; Eilevstjønn, Joar; Eftestøl, Trygve; Aase, S.O.; Myklebust, Helge; Steen, Petter Andreas

(2002)

Removal of cardiopulmonary resuscitation artifacts from human ECG using an efficent matching pursuit-like algorithm.

IEEE Transactions on Biomedical Engineering.

ISSN 0018-9294.

Volum 49.

s.1287-1298.

Husøy, John Håkon; Eilevstjønn, Joar; Eftestøl, Trygve; Aase, Sven Ole; Myklebust, Helge; Steen, Petter Andreas

(2002)

Removal of cardiopulmonary resuscitation artifacts from human ecg using an efficient matching pursuit-like algorithm.

IEEE Transactions on Biomedical Engineering.

ISSN 0018-9294.

Volum 49.

Hefte 11.

s.1287-1298.

Eftestøl, Trygve; Sunde, Kjetil; Aase, S.O.; Husøy, John Håkon; Steen, Petter Andreas

(2001)

"Probability of successful defibrillation" as a monitor during CPR in out-of-hospital cardiac arrested patients.

Resuscitation.

ISSN 0300-9572.

Volum 48.

Hefte 3.

s.245-254.

Eftestøl, Trygve; Sunde, Kjetil; Aase, Sven Ole; Husøy, John Håkon; Steen, Petter Andreas

(2001)

Probability of successful defibrillation' as a monitor during CPR in out-of-hospital cardiac arrested patients.

Resuscitation.

ISSN 0300-9572.

Volum 48.

s.245-254.

Aase, Sven Ole; Husøy, John Håkon; Skretting, Karl; Engan, Kjersti

(2001)

General signal expansions for sparse representation.

IEEE Transactions on Signal Processing.

ISSN 1053-587X.

Volum 49.

Hefte 5.

s.1087-1098.

Aase, S.O.; Eftestøl, Trygve; Husøy, John Håkon; Sunde, Kjetil; Steen, Petter Andreas

(2000)

CPR artifact removal from human ECG using optimal multichannel filtering.

IEEE Transactions on Biomedical Engineering.

ISSN 0018-9294.

Volum 47.

s.1440-1449.

Eftestøl, Trygve; Sunde, Kjetil; Aase, Sven Ole; Husøy, John Håkon; Steen, Petter Andreas

(2000)

Predicting outcome of defibrillation by spectral characterization and nonparametric classification of ventricular fibrillation in patients with out-of-hospital cardiac arrest.

Circulation.

ISSN 0009-7322.

Volum 102.

s.1523-1529.

Engan, Kjersti; Aase, Sven Ole; Husøy, John Håkon

(2000)

Multi-frame Compression: Theory and Design.

Signal Processing.

ISSN 0165-1684.

Volum 80.

Hefte 10.

s.2121-2140.

Eftestøl, Trygve; Sunde, Kjetil; Aase, Sven Ole; Husøy, John Håkon; Steen, Petter Andreas

(2000)

Predicting outcome of defibrillation by spectral characterization and nonparametric classification of ventricular fibrillation in patients with out-of-hospital cardiac arrest.

Circulation.

ISSN 0009-7322.

Volum 102.

s.1523-1529.

Aase, Sven Ole; Eftestøl, Trygve; Husøy, John Håkon; Sunde, Kjetil; Steen, Petter Andreas

(2000)

CPR artifact removal from human ECG using optimal multichannel filtering.

IEEE Transactions on Biomedical Engineering.

ISSN 0018-9294.

Volum 47.

s.1440-1449.

Aase, Sven Ole; Nygaard, Ranveig; Husøy, John Håkon; Haugland, Dag

(1998)

Optimised Time- and Frequency-Domain Methods for ECG Signal Compression.

?.

Volum 5.

s.210-225.

Aase, Sven Ole; Ramstad, T.A.

(1995)

On the Optimality of Nonunitary Filter banks in Subband Coders.

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Bøker og kapitler

Aase, Sven Ole; Heber, J.; Husøy, John Håkon

(1997)

User manual for image compression evaluator, version 2.0:tech.rep. Technical note 7 for EU-project HC 1011, DiabCare Q-Net.

Aase, Sven Ole; Ribbum, B.; Husøy, John Håkon

(1997)

The DiabPack subband coder:tech.rep. Technical note 8 for EU-project HC 1011, DiabCare Q-Net.

Ribbum, B.; Aase, Sven Ole; Husøy, John Håkon

(1997)

Details for installing and running the DiabCare JPEG compression/ decompression program, version 2.0: tech.rep. Technical note 9 for EUproject HC 1011, DiabCare Q-Net.

Husøy, John Håkon; Aase, S.O.

(1996)

Compression of retinal images using a modified JPEG coder. Technical note 4 for EU-Project HC 1011, DiabCare Q-Net.

Husøy, John Håkon; Aase, S.O.

(1996)

User manual for image compression evaluator. Technical note 5 for EU-project HC 1011, DiabCare Q-Net.

Formidling

Gundersen, Kenneth; Kvaløy, J.T.; Eftestøl, Trygve; Steen, Petter Andreas; Kramer-Johansen, Jo; Wik, Lars; Sterz, Fritz; Losert, F.; Aase, Sven Ole

(2006)

Random effects in shock outcome prediction.

Resuscitation.

ISSN 0300-9572.

Volum 69.

Hefte 1.

s.72-73.

Risdal, Martin; Steen, Petter Andreas; Kramer-Johansen, Jo; Wik, Lars; Sterz, F.; Losert, F.; Aase, S.O.; Eftestøl, T.

(2006)

Discriminating between pea and pulse circulating rhythm using ECG.

Resuscitation.

ISSN 0300-9572.

Volum 69.

Hefte 1.

s.46-46.

Gundersen, Kenneth; Kvaløy, J.T.; Eftestøl, T.; Steen, Petter Andreas; Kramer-Johansen, Jo; Wik, Lars; Sterz, F.; Losert, F.; Aase, S.O.

(2006)

Improved shock outcome prediction from a random effects model.

Resuscitation.

ISSN 0300-9572.

Volum 69.

Hefte 1.

s.128-128.

Eftestøl, Trygve; Ryen, Tom; Aase, Sven Ole; Strässle, Cassian; Boos, Marcus; Schuster, Guido M.; Ruoff, Peter

(2006)

Eukaryotic gene prediction by spectral analysis and pattern recognition techniques.

The 7th Nordic Signal Processing Symposium - NORSIG 2006;

2006-06-07 - 2006-06-09.

Risdal, Martin; Steen, Petter Andreas; Kramer-Johansen, Jo; Wik, Lars; Sterz, Fritz; Losert, Heidrun; Aase, Sven Ole; Eftestøl, Trygve

(2006)

Discriminating between PEA and pulse circulating rhythm using ECG.

Resuscitation.

ISSN 0300-9572.

Gundersen, Kenneth; Kvaløy, Jan Terje; Eftestøl, Trygve; Steen, Petter Andreas; Kramer-Johansen, Jo; Wik, Lars; Sterz, Fritz; Losert, Heidrun; Aase, Sven Ole

(2006)

Improved shock outcome prediction from a random model.

Resuscitation.

ISSN 0300-9572.

Gundersen, Kenneth; Kvaløy, Jan Terje; Eftestøl, Trygve; Steen, Petter Andreas; Kramer-Johansen, Jo; Wik, Lars; Sterz, Fritz; Losert, Heidrun; Aase, Sven Ole

(2006)

Random effects in shock outcome prediction.

Resuscitation.

ISSN 0300-9572.

Gundersen, Kenneth; Kvaløy, Jan Terje; Eftestøl, Trygve; Steen, Petter Andreas; Kramer-Johansen, Jo; Wik, Lars; Sterz, Fritz; Losert, Heidrun; Aase, Sven Ole

(2006)

Random effects in shock outcome prediction.

Resuscitation 2006;

2006-05-10 - 2006-05-13.

Risdal, Martin; Losert, Heidrun; Sterz, Fritz; Aase, Sven Ole; Eftestøl, Trygve

(2006)

Using thoracic impedance for identification of return of spontaneous circulation during resuscitation.

7th nordic signal processing symposium;

2006-06-07 - 2006-06-09.

Risdal, Martin; Sleveland, T; Steen, Petter Andreas; Kramer-Johansen, Jo; Wik, Lars; Sterz, Fritz; Losert, F.; Eftestøl, Trygve; Aase, Sven Ole

(2005)

Improving rhythm classification using electrocardiogram and thorax impednace recorded by automated external defibrillators.

NORSIG 2005 Congress;

2005-09-22 - 2005-09-24.

Risdal, Martin; Aase, Sven Ole; Eftestøl, Trygve

(2005)

Examining the Potential of Using Thorax Impedance Measured by Automated External Defibrillators for Quantification of Circulation.

32nd annual international conference on Computers in Cardiology;

2005-09-25 - 2005-09-28.

Risdal, Martin; Aase, Sven Ole; Eftestøl, Trygve

(2005)

Arbitrary feature space dimensionality reduction with focus on loss of discrimination for two-class problems.

Norsk symposium i signalbehandling;

2005-09-22 - 2005-09-24.

Risdal, Martin; Eftestøl, Trygve; Aase, Sven Ole; Steen, Petter Andreas; Sleveland, Tone; Wik, Lars; Kramer-Johansen, Jo; Sterz, Fritz; Losert, Heidrun

(2005)

Improving rhythm classification using electrocardiogram and thorax impedance recorded by automated external defibrillators.

Norsk symposium i signalbehandling;

2005-09-22 - 2005-09-24.

Risdal, Martin; Losert, Heidrun; Nysæther, Jon; Aase, Sven Ole; Sterz, Fritz; Eftestøl, Trygve

(2005)

NON-INVASIVE VENTILATION MONITORING DURING CARDIOPULMONARY RESUSCITATION BY MEANS OF THORACIC IMPEDANCE.

3rd Eurpean Medical & Biological Engineering Conference;

2005-11-20 - 2005-11-25.

Risdal, Martin; Losert, Heidrun; Nysæther, Jon; Aase, Sven Ole; Sterz, Fritz; Eftestøl, Trygve

(2005)

VENTILATION CLASSIFICATION FOR CARDIOPULMONARY RESUSCITATION QUALITY MONITORING USING THORACIC IMPEDANCE.

3rd European Medical & Biological Engineering Conference;

2005-11-20 - 2005-11-25.

Risdal, Martin; Stavland, Mette; Aase, Sven Ole; Eftestøl, Trygve

(2005)

IMPEDANCE-BASED VENTILATION DETECTION DURING CARDIOPULMONARY RESUSCITATION USING A NEURAL NETWORK.

3rd European Medical & Biological Engineering Conference;

2005-11-20 - 2005-11-25.

Ryen, Tom; Aase, Sven Ole; Husøy, John Håkon

(2005)

Rate-distortion optimal frame based compression of ECG signals.

NORSIG 05 - Norsk symposium i signalbehandling 2005;

2005-09-22 - 2005-09-24.

Eilevstjønn, Joar; Husøy, John Håkon; Eftestøl, Trygve; Aase, Sven Ole; Steen, Petter Andreas

(2002)

Multichannel adaptive filtering using an efficient matching pursuit-like algorithm for removal of CPR artifacts in ECG signals.

2002 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2002);

2002-05-13 - 2002-05-17.

Eilevstjønn, Joar; Husøy, John Håkon; Eftestøl, Trygve; Aase, Sven Ole; Steen, Petter Andreas

(2002)

Multichannel adaptive filtering using an efficient matching pursuit-like algorithm for removal of CPR artifacts in ECG signals.

2002 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2002);

2002-05-13 - 2002-05-17.

Husøy, John Håkon; Eilevstjønn, Joar; Aase, Sven Ole

(2002)

CPR artefact removal in ECG signals using an adaptive multichannel filter based on optimum selective coefficient update.

Proc.Biosignal 2002;

2002-06-26 - 2002-06-28.

Aase, Sven Ole; Skretting, Karl; Husøy, John Håkon; Engan, Kjersti

(2001)

Design of Signal Expansions for Sparse Representation.

ICASSP 2000;

Engan, Kjersti; Husøy, John Håkon; Aase, Sven Ole

(2001)

Frame based representation and compression of still images.

Proc. International conf. on image processing;

2001-10-07 - 2001-10-10.

Skretting, Karl; Husøy, John Håkon; Aase, Sven Ole

(2001)

A simple design of sparse signal representations using overlapping frames.

2nd International Symposium on Image and Signal Processing;

2001-06-19 - 2001-06-23.

Ryen, Tom; Aase, Sven Ole; Husøy, John Håkon

(2001)

Finding sparse representation of quantized frame coefficients using 0-1 integer programming.

2nd International Symposium on Image and Signal Processing;

2001-06-19 - 2001-06-23.

Skretting, Karl; Engan, Kjersti; Husøy, John Håkon; Aase, Sven Ole

(2001)

Sparse representation of images using overlapping frames.

12th Scandinavian Conference on Image Analysis;

2001-06-11 - 2001-06-14.

Eftestøl, Trygve; Aase, Sven Ole; Husøy, John Håkon

(2000)

Spectral characterization of ECG in out-of-hospital cardiac arrest patients.

Computers in Cardiology 1999;

Eftestøl, Trygve; Aase, Sven Ole; Husøy, John Håkon

(2000)

A method for detection of signal harmonics in the spectrum.

Computers in Cardiology 1999;

Eftestøl, Trygve; Sunde, Kjetil; Aase, Sven Ole; Husøy, John Håkon; Steen, Petter Andreas

(2000)

Predicting defibrillation outcome from VF-characteristics in out-of-hospital cardiac arrest.

Fifth congress of the European Resuscitation Council, ERC;

Eftestøl, Trygve; Sunde, Kjetil; Aase, Sven Ole; Husøy, John Håkon; Steen, Petter Andreas

(2000)

Monitoring the "probability of successful defibrillation" during CPR in out-of-hospital cardiac arrested patients.

Scientific sessions 2000;

Aase, Sven Ole; Husøy, John Håkon; Eftestøl, Trygve

(2000)

Optimum CPR artefact removal in human ECG signals.

Proc.Biosignal 2000;

2000-06-26 - 2000-06-28.

Engan, Kjerti; Aase, Sven Ole; Husøy, John Håkon

(2000)

Transform based ECG signal compression using nonorthogonal vectors.

Konferanse;

1996-11-30 - .

Aase, Sven Ole; Nygaard, Ranveig; Husøy, John Håkon

(2000)

A comparative study of some novel ECG data compression techniques.

NORSIG;

Husøy, John Håkon; Aase, Sven Ole; Skretting, Karl; Engan, Kjersti

(2000)

Design of general block oriented expansions for efficient signal representation.

utenTitteltekst;

Eftestøl, Trygve; Aase, Sven Ole; Husøy, John Håkon

(1999)

Characterisation og changes in cardiac arrhythmias using spectral parameters.

NORSIG '97;

Ramstad, T.A.; Aase, S.O.; Husøy, John Håkon

(1999)

Subband Compression of Images-principles and Examples.

ELSEVIER Science Publishers BV;

Heber, J.G.; Aase, S.O.; Husøy, John Håkon

(1999)

ECG data compression by modelling of subbands.

Computers in Cardiology;

Engan, Kjersti; Husøy, John Håkon; Aase, Sven Ole

(1999)

Optimized frame design for a matching pursuit based compression scheme.

EUSIPCO;

Eftestøl, Trygve; Aase, Sven Ole; Husøy, John Håkon

(1999)

Spectral flatness measure for characterising changes in cardiac arrhythmias.

NOBIM konferansen 1998;

Eftestøl, Trygve; Aase, Sven Ole; Husøy, John Håkon; Chang, H. K.; Zhang, Y. T.

(1999)

A flexible pattern recognition system for analysis of ECG and related demographics and annotations.

20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society;

Engan, Kjersti; Husøy, John Håkon; Aase, Sven Ole

(1999)

Optimized frames of variable size for use in a matching pursuit based compression scheme.

NORSIG`98;

Skretting, Karl; Husøy, John Håkon; Aase, Sven Ole

(1999)

Improved Huffman coding using recursive splitting.

utenTitteltekst;

Ryen, Tom; Aase, Sven Ole; Husøy, John Håkon

(1999)

Compression of oil well log signals.

NORSIG;

1999-09-01 - 1999-09-03.

Aase, Sven Ole; Husøy, John Håkon; Waldemar, Patrick

(1999)

A critique of SVD-based image coding systems.

utenTitteltekst;

Engan, Kjersti; Aase, Sven Ole; Husøy, John Håkon

(1999)

Method of optimal directions for frame design.

utenTitteltekst;

Engan, Kjersti; Aase, Sven Ole; Husøy, John Håkon

(1999)

Frame based signal compression using method of optimal directions (MOD).

utenTitteltekst;

Aase, Sven Ole; Husøy, John Håkon; Sætren, M.V.

(1998)

Compression of retinal images using av modified jpeg coder.

utenTitteltekst;

Aase, Sven Ole

(1998)

Filter bank design for subband ECG compression.

IEEE International Conference of Engineering in Medicine and Bi ology;

Aase, Sven Ole; Landråk, I.

(1998)

2 (D) subband compression of ECG signals using entropy allocation.

International Symposium on Digital Signal Processing;

Aase, Sven Ole

(1998)

Filter bank design for subband compression of ECG signals.

NORSIG-95;

Engan, Kjersti; Aase, Sven Ole; Husøy, John Håkon

(1997)

Designing frames for matching pursuit algorithms.

Universitetet i Stavanger.