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Kjersti Engan

Professor

Institutt for data- og elektroteknologi
KE E-431
Bio
Kjersti Engan is a full professor at the Electrical Engineering and Computer Science department at the University of Stavanger (UiS). She received the BE degree in electrical engineering from Bergen University College in 1994 and the M.Sc. and Ph.D degrees in electrical engineering in 1996 and 2000 respectively from UiS. She is the leader of the Biomedical data analysis lab - BMDLab - at UiS. Her research interests are in signal and image processing and machine learning with emphasis on medical applications and in dictionary learning for sparse signal and image representation. Past and current projects in collaboration with local and international hospitals and partners include analysis, classification and segmentation in Cardiac MR on infarct patients, brain MRI on dementia patients, CT Perfusion images from stroke patients and on histopathological images for different cancer types. She is also active in projects on cardiac arrest and newborn survival, contributing with analysis and classification on fetal heart rate signals, ECG and ventilation signals and on video analysis for activity detection during resuscitation. She is a senior member of IEEE, and a board member of NOBIM (Norwegian Image and Pattern Recognition Society). She has served as Associate editor and Senior Area editor for IEEE Signal Processing Letters. She is currently a member of IEEE Image, Video, and Multidimensional Signal Processing Technical Committee (IVMSP), and an associate editor for SIAM Journal on Imaging Sciences (SIIMS).
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Publications
  • Vitenskapelige publikasjoner
    • Tomasetti, Luca; Engan, Kjersti; Khanmohammadi, Mahdieh; Kurz, Kathinka Dæhli

      (2020)

      CNN Based Segmentation of Infarcted Regions in Acute Cerebral Stroke Patients From Computed Tomography Perfusion Imaging

      Association for Computing Machinery (ACM)

      DOI: 10.1145/3388440.3412470

    • Urdal, Jarle; Engan, Kjersti; Eftestøl, Trygve Christian; Naranjo, Valery; Haug, Ingun; Yeconia, Anita; Kidanto, Hussein; Ersdal, Hege Langli

      (2020)

      Automatic identification of stimulation activities during newborn resuscitation using ECG and accelerometer signals

      Computer Methods and Programs in Biomedicine

      ISSN 0169-2607.

      Volum 193.

      s.1-9.

      DOI: 10.1016/j.cmpb.2020.105445

    • Meinich-Bache, Øyvind; Austnes, Simon Lennart; Engan, Kjersti; Austvoll, Ivar; Eftestøl, Trygve Christian; Myklebust, Helge; Kusulla, Simeon; Kidanto, Hussein; Ersdal, Hege Langli

      (2020)

      Activity Recognition from Newborn Resuscitation Videos

      IEEE journal of biomedical and health informatics

      ISSN 2168-2194.

      Volum 24.

      Hefte 11.

      s.3258-3267.

      DOI: 10.1109/JBHI.2020.2978252

    • Wetteland, Rune; Engan, Kjersti; Eftestøl, Trygve Christian; Kvikstad, Vebjørn; Janssen, Emiel

      (2020)

      A Multiscale Approach for Whole-Slide Image Segmentation of five Tissue Classes in Urothelial Carcinoma Slides

      Technology in Cancer Research and Treatment

      ISSN 1533-0346.

      Volum 19.

      s.1-15.

      DOI: 10.1177/1533033820946787

    • Dalheim, Ove Nicolai; Wetteland, Rune; Kvikstad, Vebjørn; Janssen, Emiel; Engan, Kjersti

      (2020)

      Semi-supervised tissue segmentation of histological images

      CEUR Workshop Proceedings

      ISSN 1613-0073.

      Volum 2688.

    • Le, Kjell; Eftestøl, Trygve Christian; Engan, Kjersti; Kleiven, Øyunn; Ørn, Stein

      (2019)

      Baseline Wander Removal and Isoelectric Correction in Electrocardiograms Using Clustering

      Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing

      ISSN 1520-6149.

      Volum 2019-May.

      s.1274-1278.

      DOI: 10.1109/ICASSP.2019.8683084

    • Le, Kjell; Eftestøl, Trygve Christian; Engan, Kjersti; Kleiven, Øyunn; Ørn, Stein

      (2019)

      Validation of Baseline Wander Removal and Isoelectric Correction in Electrocardiograms Using Clustering

      European Signal Processing Conference

      ISSN 2076-1465.

      DOI: 10.23919/EUSIPCO.2019.8903153

    • Urdal, Jarle; Engan, Kjersti; Eftestøl, Trygve Christian; Yarrot, Ladislaus Blacy; Hussein, Kidanto; Ersdal, Hege Langli

      (2019)

      Noise and Contraction Detection using Fetal Heart Rate and Accelerometer Signals During Labour

      Linköping Electronic Conference Proceedings

      ISSN 1650-3686.

      s.121-126.

    • Khanmohammadi, Mahdieh; Engan, Kjersti; Sæland, Charlotte; Eftestøl, Trygve Christian; Larsen, Alf Inge

      (2019)

      Automatic estimation of coronary blood flow velocity step 1 for developing a tool to diagnose patients with micro-vascular angina pectoris

      Frontiers in Cardiovascular Medicine

      ISSN 2297-055X.

      Volum 6:1.

      s.1-11.

      DOI: 10.3389/fcvm.2019.00001

    • Schulz, Jörn; Kvaløy, Jan Terje; Engan, Kjersti; Eftestøl, Trygve Christian; Jatosh, Samwel; Hussein, Kidanto; Ersdal, Hege Langli

      (2019)

      State transition modeling of complex monitored health data

      Journal of Applied Statistics

      ISSN 0266-4763.

      DOI: 10.1080/02664763.2019.1698523

    • Wetteland, Rune; Engan, Kjersti; Eftestøl, Trygve Christian; Kvikstad, Vebjørn; Janssen, Emiel

      (2019)

      Multiclass tissue classification of whole-slide histological images using convolutional neural networks

      SciTePress

      s.320-327.

      DOI: 10.5220/0007253603200327

    • Meinich-Bache, Øyvind; Engan, Kjersti; Austvoll, Ivar; Eftestøl, Trygve Christian; Myklebust, Helge; Yarrot, Ladislaus Blacy; Kidanto, Hussein; Ersdal, Hege Langli

      (2019)

      Object Detection During Newborn Resuscitation Activities

      IEEE journal of biomedical and health informatics

      ISSN 2168-2194.

      DOI: 10.1109/JBHI.2019.2924808

    • Le, Kjell; Eftestøl, Trygve Christian; Engan, Kjersti; Kleiven, Øyunn; Ørn, Stein

      (2018)

      Invariant electrical mean axis in electrocardiogram

      Computing in cardiology

      ISSN 2325-8861.

      Volum 45.

      DOI: 10.22489/CinC.2018.151

    • Le, Kjell; Eftestøl, Trygve Christian; Engan, Kjersti; Ørn, Stein; Kleiven, Øyunn

      (2018)

      High Frequency Noise Detection and Handling in ECG Signals

      European Signal Processing Conference

      ISSN 2076-1465.

      s.46-50.

      DOI: 10.23919/EUSIPCO.2018.8553046

    • Barzideh, Faraz; Urdal, Jarle; Engan, Kjersti; Skretting, Karl; Mdoe, Paschal Francis; Kamala, Benjamin; Brunner, Sara; Hussein, Kidanto

      (2018)

      Estimation of Missing Data in Fetal Heart Rate Signals Using Shift-Invariant Dictionary

      European Signal Processing Conference

      ISSN 2076-1465.

      s.762-766.

      DOI: 10.23919/EUSIPCO.2018.8553110

    • Legaz-Aparicio, Alvar-Gines; Verdu-Monedero, Rafael; Engan, Kjersti

      (2018)

      Noise robust and rotation invariant framework for texture analysis and classification

      Applied Mathematics and Computation

      ISSN 0096-3003.

      Volum 335.

      s.124-132.

      DOI: 10.1016/j.amc.2018.04.018

    • Meinich-Bache, Øyvind; Engan, Kjersti; Eftestøl, Trygve Christian; Austvoll, Ivar

      (2018)

      Kinect Modelling of Chest Compressions - A Feasibility Study for Chest Compression Depth Measurement Using Digital Strategies

      Proceedings of IEEE international conference on image processing

      ISSN 1522-4880.

      s.913-917.

      DOI: 10.1109/ICIP.2018.8451387

    • Rad, Ali Bahrami; Eftestøl, Trygve Christian; Irusta, Unai; Kvaløy, Jan Terje; Wik, Lars; Kramer-Johansen, Jo; Katsaggelos, Aggelos K.; Engan, Kjersti

      (2018)

      An automatic system for the comprehensive retrospective analysis of cardiac rhythms in resuscitation episodes

      Resuscitation

      ISSN 0300-9572.

      Volum 122.

      s.6-12.

      DOI: 10.1016/j.resuscitation.2017.11.035

    • Meinich-Bache, Øyvind; Engan, Kjersti; Birkenes, Tonje Søraas; Myklebust, Helge

      (2018)

      Real-Time Chest Compression Quality Measurements by Smartphone Camera

      Journal of Healthcare Engineering

      ISSN 2040-2295.

      Volum 2018.

      DOI: 10.1155/2018/6241856

    • Meinich-Bache, Øyvind; Engan, Kjersti; Birkenes, Tonje Søraas; Myklebust, Helge

      (2017)

      Robust real-time chest compression rate detection from smartphone video

      IEEE

      DOI: 10.1109/ISPA.2017.8073560

    • Skretting, Karl; Engan, Kjersti

      (2017)

      Sparse Approximation by Matching Pursuit Using Shift-Invariant Dictionary

      Springer

      s.362-371.

      DOI: 10.1007/978-3-319-59126-1_30

    • Colomer, Adrian; Naranjo, Valery; Engan, Kjersti; Skretting, Karl

      (2017)

      Assessment of sparse-based inpainting for retinal vessel removal

      Signal processing. Image communication

      ISSN 0923-5965.

      Volum 59.

      s.73-82.

      DOI: 10.1016/j.image.2017.03.018

    • Urdal, Jarle; Engan, Kjersti; Kvikstad, Vebjørn; Janssen, Emilius

      (2017)

      Prognostic Prediction of Histopathological Images by Local Binary Patterns and RUSBoost

      European Signal Processing Conference

      ISSN 2076-1465.

      s.2349-2353.

      DOI: 10.23919/EUSIPCO.2017.8081630

    • Urdal, Jarle; Engan, Kjersti; Eftestøl, Trygve Christian; Kidanto, Hussein; Yarrot, Ladislaus Blacy; Eilevstjønn, Joar; Ersdal, Hege Langli

      (2017)

      Signal Processing and Classification for Identification of Clinically Important Parameters During Neonatal Resuscitation

      IEEE

      s.547-552.

      DOI: 10.1109/icsipa.2017.8120672

    • Oppedal, Ketil; Engan, Kjersti; Eftestøl, Trygve Christian; Beyer, Mona K.; Aarsland, Dag

      (2017)

      Classifying Alzheimer's disease, Lewy body dementia, and normal controls using 3D texture analysis in magnetic resonance images

      Biomedical Signal Processing and Control

      ISSN 1746-8094.

      Volum 33.

      s.19-29.

      DOI: 10.1016/j.bspc.2016.10.007

    • Khanmohammadi, Mahdieh; Engan, Kjersti; Eftestøl, Trygve Christian; Sæland, Charlotte; Larsen, Alf Inge

      (2017)

      SEGMENTATION OF CORONARY ARTERIES FROM X-RAY ANGIOGRAPHY SEQUENCES DURING CONTRAST FLUID PROPAGATION BY IMAGE REGISTRATION

      IEEE Signal Processing Society

    • Barzideh, Faraz; Skretting, Karl; Engan, Kjersti

      (2017)

      Imposing shift-invariance using Flexible Structure Dictionary Learning (FSDL)

      Digital signal processing (Print)

      ISSN 1051-2004.

      Volum 69.

      s.162-173.

      DOI: 10.1016/j.dsp.2017.06.023

    • Meinich-Bache, Øyvind; Engan, Kjersti; Eftestøl, Trygve Christian; Austvoll, Ivar

      (2017)

      Detecting chest compression depth using a smartphone camera and motion segmentation

      Lecture Notes in Computer Science (LNCS)

      ISSN 0302-9743.

      Volum 10270 LNCS.

      s.53-64.

      DOI: 10.1007/978-3-319-59129-2_5

    • Vu, Thi Phuong Huyen; Engan, Kjersti; Eftestøl, Trygve Christian; Katsaggelos, Aggelos; Jatosh, Samwel; Kusulla, Simeon; Mduma, Estomih; Kidanto, Hussein; Ersdal, Hege Langli

      (2017)

      Automatic classification of resuscitation activities on birth-asphyxiated newborns using acceleration and ECG signals

      Biomedical Signal Processing and Control

      ISSN 1746-8094.

      Volum 36.

      s.20-26.

      DOI: 10.1016/j.bspc.2017.03.004

    • Vu, Thi Phuong Huyen; Eftestøl, Trygve Christian; Engan, Kjersti; Eilevstjønn, Joar; Yarrot, Ladislaus Blacy; Linde, Jørgen Erland; Ersdal, Hege Langli

      (2017)

      Automatic Detection and Parameterization of Manual Bag-Mask Ventilation on Newborns

      IEEE journal of biomedical and health informatics

      ISSN 2168-2194.

      Volum 21.

      Hefte 2.

      s.527-538.

      DOI: 10.1109/JBHI.2016.2518238

    • Rad, Ali Bahrami; Eftestøl, Trygve Christian; Engan, Kjersti; Irusta, Unai; Kvaløy, Jan Terje; Kramer-Johansen, Jo; Wik, Lars; Katsaggelos, Aggelos K.

      (2017)

      ECG-Based classification of resuscitation cardiac rhythms for retrospective data analysis

      IEEE Transactions on Biomedical Engineering

      ISSN 0018-9294.

      Volum 64.

      Hefte 10.

      s.2411-2418.

      DOI: 10.1109/TBME.2017.2688380

    • Engan, Kjersti; Hinna, Thomas; Ryen, Tom; Birkenes, Tonje Søraas; Myklebust, Helge

      (2016)

      Chest compression rate measurement from smartphone video

      Biomedical engineering online

      ISSN 1475-925X.

      Volum 15:95.

      s.1-19.

      DOI: 10.1186/s12938-016-0218-6

    • Tveit, Daniel Myklatun; Engan, Kjersti; Austvoll, Ivar; Meinich-Bache, Øyvind

      (2016)

      Motion based detection of respiration rate in infants using video

      Proceedings of IEEE international conference on image processing

      ISSN 1522-4880.

      Volum 2016-August.

      s.1225-1229.

      DOI: 10.1109/ICIP.2016.7532553

    • Naranjo, Valery; Saez, C; Morales, Sandra; Engan, Kjersti; Gomez, S.

      (2016)

      Optic cup characterization through sparse representation and dictionary learning

      European Signal Processing Conference

      ISSN 2076-1465.

      Volum 2016-November.

      s.1688-1692.

      DOI: 10.1109/EUSIPCO.2016.7760536

    • Vu, Thi Phuong Huyen; Eftestøl, Trygve Christian; Engan, Kjersti; Eilevstjønn, Joar; Yarrot, Ladislaus Blacy; Linde, Jørgen Erland; Ersdal, Hege Langli

      (2016)

      Detection of activities during newborn resuscitation based on short-time energy of acceleration signal

      Lecture Notes in Computer Science (LNCS)

      ISSN 0302-9743.

      Volum 9680.

      s.262-270.

      DOI: 10.1007/978-3-319-33618-3_27

    • Rad, Ali Bahrami; Engan, Kjersti; Katsaggelos, Aggelos K.; Kvaløy, Jan Terje; Wik, Lars; Kramer-Johansen, Jo; Irusta, Unai; Eftestøl, Trygve Christian

      (2016)

      Automatic cardiac rhythm interpretation during resuscitation

      Resuscitation

      ISSN 0300-9572.

      Volum 102.

      s.44-50.

      DOI: 10.1016/j.resuscitation.2016.01.015

    • Colomer, Adrian; Naranjo, Valery; Engan, Kjersti; Skretting, Karl

      (2015)

      Retinal vessel inpainting using recursive least square dictionary learning algorithm

      IEEE

      s.429-433.

      DOI: 10.1109/IPTA.2015.7367181

    • Engan, Kjersti; Naranjo, Valery; Eftestøl, Trygve Christian; Ørn, Stein; Woie, Leik

      (2015)

      Segmentation of LG Enhanced Cardiac MRI

      SciTePress

      s.47-55.

      DOI: 10.5220/0005169200470055

    • Morales, Sandra; Engan, Kjersti; Naranjo, Valery; Colomer, Adrian

      (2015)

      Detection of diabetic retinopathy and age-related macular degeneration from fundus images through local binary patterns and random forests

      Proceedings of IEEE international conference on image processing

      ISSN 1522-4880.

      Volum 2015-December.

      s.4838-4842.

      DOI: 10.1109/ICIP.2015.7351726

    • Woie, Leik; Engan, Kjersti; Eftestøl, Trygve; Larsen, Alf Inge; Ørn, Stein

      (2015)

      The Localization and Characterization of Ischemic Scars in relation to the Infarct Related Coronary Artery Assessed by Cardiac Magnetic Resonance and a Novel Automatic Postprocessing Method

      Cardiology Research and Practice

      ISSN 2090-8016.

      Volum 2015.

      DOI: 10.1155/2015/120874

    • Eftestøl, Trygve Christian; Singsaas, Erlend Gyllensten; Engan, Kjersti; Woie, Leik; Ørn, Stein

      (2015)

      Automatic Detection of Microvascular Obstruction in Patients with Myocardial Infarction

      Computing in cardiology

      ISSN 2325-8861.

      Volum 42.

      s.757-760.

      DOI: 10.1109/cic.2015.7411021

    • Oppedal, Ketil; Eftestøl, Trygve; Engan, Kjersti; Beyer, Mona K.; Aarsland, Dag

      (2015)

      Classifying dementia using local binary patterns from different regions in magnetic resonance images

      International Journal of Biomedical Imaging

      ISSN 1687-4188.

      Volum 2015.

      DOI: 10.1155/2015/572567

    • Barzideh, Faraz; Skretting, Karl; Engan, Kjersti

      (2015)

      The flexible signature dictionary

      European Signal Processing Conference

      ISSN 2076-1465.

      s.948-952.

      DOI: 10.1109/eusipco.2015.7362522

    • Vu, Huyen Phuong; Eftestøl, Trygve; Engan, Kjersti; Eilevstjønn, Joar; Linde, Jørgen Erland; Ersdal, Hege

      (2015)

      Exploratory Analysis of Ventilation Signals from Resuscitation Data of Newborns

      Communications in Computer and Information Science

      ISSN 1865-0929.

      Volum 574.

      s.275-290.

      DOI: 10.1007/978-3-319-27707-3_17

    • Morales, Sandra; Engan, Kjersti; Naranjo, Valery; Colomer, Adrian

      (2015)

      Retinal disease screening through local binary patterns

      IEEE journal of biomedical and health informatics

      ISSN 2168-2194.

      Volum PP.

      Hefte 99.

      DOI: 10.1109/JBHI.2015.2490798

    • Vu, Huyen Phuong; Eftestøl, Trygve Christian; Engan, Kjersti; Eilevstjønn, Joar; Linde, Jørgen Erland; Ersdal, Hege Langli

      (2015)

      Exploratory Analysis of Ventilation Signals from Resuscitation Data of Newborns

      SciTePress

      s.12-20.

      DOI: 10.5220/0005176800120020

    • Woie, Leik; Engan, Kjersti; Eftestøl, Trygve; Kvaløy, Jan Terje; Ørn, Stein

      (2015)

      The relationship between transmurality of ischemic scars and the heart rate of ventricular tachycardia

      Scandinavian Cardiovascular Journal

      ISSN 1401-7431.

      Volum 49.

      Hefte 5.

      s.241-248.

      DOI: 10.3109/14017431.2015.1066844

    • Vu, Thi Phuong Huyen; Eftestøl, Trygve Christian; Engan, Kjersti; Eilevstjønn, Joar; Yarrot, Ladislaus Blacy; Linde, Jørgen Erland; Ersdal, Hege Langli

      (2015)

      Exploring the Relationship Between Characteristics of Ventilation Performance and Response of Newborns During Resuscitation

      Communications in Computer and Information Science

      ISSN 1865-0929.

      s.275-290.

      DOI: 10.1007/978-3-319-27707-3_17

    • Kotu, Lasya Priya; Engan, Kjersti; Borhani, Reza; Katsaggelos, Aggelos K.; Ørn, Stein; Woie, Leik; Eftestøl, Trygve

      (2015)

      Cardiac magnetic resonance image-based classification of the risk of arrhythmias in post-myocardial infarction patients

      Artificial Intelligence in Medicine

      ISSN 0933-3657.

      Volum 64.

      Hefte 3.

      s.205-215.

      DOI: 10.1016/j.artmed.2015.06.001

    • Engan, Kjersti; Naranjo, Valery; Eftestøl, Trygve; Woie, Leik; Schuchter, Arthur; Ørn, Stein

      (2014)

      Automatic Detection of Heart Center in Late Gadolinium Enhanced MRI

      International Federation for Medical and Biological Engineering Proceedings

      ISSN 1680-0737.

      Volum 41.

      s.165-168.

      DOI: 10.1007/978-3-319-00846-2_41

    • Woie, Leik; Måløy, Frode; Eftestøl, Trygve; Engan, Kjersti; Edvardsen, Thor; Kvaløy, Jan Terje; Ørn, Stein

      (2014)

      Comparing a novel automatic 3D method for LGE-CMR quantification of scar size with established methods

      The International Journal of Cardiovascular Imaging

      ISSN 1569-5794.

      Volum 30.

      Hefte 2.

      s.339-347.

      DOI: 10.1007/s10554-013-0329-0

    • Skretting, Karl; Engan, Kjersti

      (2014)

      Energy Minimization by alpha-erosion for Supervised Texture Segmentation

      Lecture Notes in Computer Science (LNCS)

      ISSN 0302-9743.

      s.207-214.

      DOI: 10.1007/978-3-319-11758-4_23

    • Eftestøl, Trygve; Måløy, Frode; Engan, Kjersti; Kotu, Lasya Priya; Woie, Leik; Ørn, Stein

      (2014)

      A Texture-based Probability Mapping for Localisation of Clinically Important Cardiac Segments in the Myocardium in Cardiac Magnetic Resonance Images from Myocardial Infarction Patients

      Proceedings of IEEE international conference on image processing

      ISSN 1522-4880.

      s.2227-2231.

      DOI: 10.1109/ICIP.2014.7025451

    • Engan, Kjersti; Woie, Leik; Eftestøl, Trygve

      (2014)

      Defining Angular and Radial Positions and Parameters for Myocardial Pixels in Cardiac MR Images

      Computing in cardiology

      ISSN 2325-8861.

      Volum 41.

      Hefte January.

      s.941-944.

    • Rad, Ali Bahrami; Eftestøl, Trygve; Kvaløy, Jan Terje; Ayala, Unai; Kramer-Johansen, Jo; Engan, Kjersti

      (2014)

      Nearest-manifold classification approach for cardiac arrest rhythm interpretation during resuscitation

      Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing

      ISSN 1520-6149.

      s.3621- 3625.

      DOI: 10.1109/ICASSP.2014.6854276

    • Huyen, Vu; Eftestøl, Trygve; Engan, Kjersti; Eilevstjønn, Joar; Linde, Jørgen Erland; Ersdal, Hege

      (2014)

      Exploratory Analysis of Heart Rate Changes in Newborns to Investigate the Effectiveness of Bag-Mask Ventilation

      Computing in cardiology

      ISSN 2325-8861.

      Volum 41.

      Hefte January.

      s.457-460.

    • Rad, Ali Bahrami; Eftestøl, Trygve; Kvaløy, Jan Terje; Ayala, Unai; Kramer-Johansen, Jo; Engan, Kjersti

      (2013)

      Probabilistic Classification Approaches for Cardiac Arrest Rhythm Interpretation during Resuscitation

      Computers in cardiology

      ISSN 0276-6574.

      Volum 40.

      s.125-128.

      DOI: 10.1109/icassp.2014.6854276

    • Engan, Kjersti; Naranjo, Valery; Eftestøl, Trygve; Ørn, Stein; Woie, Leik

      (2013)

      Automatic Segmentation of the Epicardium in Late Gadolinium Enhanced Cardiac MR Images

      Computers in cardiology

      ISSN 0276-6574.

      Volum 40.

      s.631-634.

    • Kotu, Lasya Priya; Engan, Kjersti; Skretting, Karl; Ørn, Stein; Woie, Leik; Eftestøl, Trygve

      (2013)

      Segmentation of Scarred Myocardium in Cardiac Magnetic Resonance Images

      ISRN Biomedical Imaging

      ISSN 2314-5412.

      DOI: 10.1155/2013/504594

    • Måløy, Frode; Woie, Leik; Eftestøl, Trygve; Engan, Kjersti; Ørn, Stein

      (2013)

      Measuring the Degree of Fibrosity of Myocardial Scars from Late Gadolinium- Enhanced Cardiovascular Magnetic Resonance Images

      Computers in cardiology

      ISSN 0276-6574.

      Volum 40.

      s.647-650.

    • Kotu, Lasya Priya; Engan, Kjersti; Skretting, Karl; Måløy, Frode; Ørn, Stein; Woie, Leik; Eftestøl, Trygve

      (2013)

      Probability mapping of scarred myocardium using texture and intensity features in CMR images

      Biomedical engineering online

      ISSN 1475-925X.

      Volum 12.

      Hefte 91.

      DOI: 10.1186/1475-925X-12-91

    • Oppedal, Ketil; Engan, Kjersti; Aarsland, Dag; Beyer, Mona Kristiansen; Tysnes, Ole-Bjørn; Eftestøl, Trygve

      (2012)

      Using local binary pattern to classify dementia in MRI

      IEEE Signal Processing Society

      s.594-597.

    • Kotu, Lasya Priya; Engan, Kjersti; Eftestøl, Trygve; Woie, Leik; Ørn, Stein; Katsaggelos, Aggelos K.

      (2012)

      LOCAL BINARY PATTERNS USED ON CARDIAC MRI TO CLASSIFY HIGH AND LOW RISK PATIENT GROUPS

      European Signal Processing Conference

      ISSN 2076-1465.

      Volum 20.

      s.2586-2590.

    • Eftestøl, Trygve; Woie, Leik; Engan, Kjersti; Kvaløy, Jan Terje; Nilsen, Dennis W.T.; Ørn, Stein

      (2012)

      Texture Analysis to Assess Risk of Serious Arrhythmias after Myocardial Infarction

      Computers in cardiology

      ISSN 0276-6574.

      s.365-368.

    • Skretting, Karl; Engan, Kjersti

      (2011)

      Image compression using learned dictionaries by RLS-DLA and compared with K-SVD

      Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing

      ISSN 1520-6149.

      s.1517-1520.

      DOI: 10.1109/ICASSP.2011.5946782

    • Woie, Leik; Eftestøl, Trygve; Engan, Kjersti; Kvaløy, Jan Terje; Nilsen, Dennis W.T.; Ørn, Stein

      (2011)

      The heart rate of ventricular tachycardia following an old myocardial infarction is inversely related to the size of scarring

      Europace

      ISSN 1099-5129.

      Volum 13.

      Hefte 6.

      s.864-868.

      DOI: 10.1093/europace/euq466

    • Kotu, Lasya Priya; Engan, Kjersti; Eftestøl, Trygve; Ørn, Stein; Woie, Leik

      (2011)

      TEXTURE CLASSIFICATION OF SCARRED AND NON-SCARRED MYOCARDIUM IN CARDIAC MRI USING LEARNED DICTIONARIES

      Proceedings of IEEE international conference on image processing

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      Volum 18.

      s.65-68.

      DOI: 10.1109/ICIP.2011.6116638

    • Skretting, Karl; Engan, Kjersti

      (2011)

      Learned dictionaries for sparse image representation: Properties and results

      Proceedings of SPIE, the International Society for Optical Engineering

      ISSN 0277-786X.

      Volum 8138.

      DOI: 10.1117/12.892684

    • Kotu, Lasya Priya; Engan, Kjersti; Eftestøl, Trygve; Ørn, Stein; Woie, Leik

      (2011)

      Segmentation of Scarred and Non-Scarred Myocardium in LG Enhanced CMR Images using Intensity-Based Textural Analysis

      IEEE Engineering in Medicine and Biology Society. Conference Proceedings

      ISSN 1557-170X.

      s.5698 -5701 .

      DOI: 10.1109/IEMBS.2011.6091379

    • Engan, Kjersti; Eftestøl, Trygve; Ørn, Stein; Kvaløy, Jan Terje; Woie, Leik

      (2010)

      Exploratory Data Analysis of Image Texture and Statistical Features on Myocardium and Infarction Areas in Cardiac Magnetic Resonance Images

      IEEE Engineering in Medicine and Biology Society. Conference Proceedings

      ISSN 1557-170X.

      s.5728-5731 .

      DOI: 10.1109/IEMBS.2010.5627866

    • Skretting, Karl; Engan, Kjersti

      (2010)

      Recursive Least Squares Dictionary Learning Algorithm

      IEEE Transactions on Signal Processing

      ISSN 1053-587X.

      Volum 58.

      Hefte 4.

      s.2121-2130.

      DOI: 10.1109/TSP.2010.2040671

    • Engan, Kjersti; Gulsrud, Thor Ole; Fretheim, Karl Fredrik; Iversen, Barbro Furebotten; Eriksen, Liv

      (2007)

      A Computer Aided Detection (CAD) System for Microcalcifications in Mammograms - MammoScan muCaD

      International Journal of Biomedical Sciences

      ISSN 1306-1216.

      Volum 2.

      Hefte 3.

    • Engan, Kjersti; Skretting, Karl; Herredsvela, Jostein; Gulsrud, Thor Ole

      (2007)

      Frame Texture Classification Method (FTCM) Applied on Mammograms for Detection of Abnormalities

      International Journal of Signal Processing

      ISSN 1304-4478.

      Volum 4.

      Hefte 2.

    • Engan, Kjersti; Skretting, Karl; Husøy, John Håkon

      (2007)

      Family of iterative LS-based dictionary learning algorithms, ILS-DLA, for sparse signal representation

      Digital signal processing (Print)

      ISSN 1051-2004.

      Volum 17.

      Hefte 1.

      s.32-49.

    • Engan, Kjersti; Gulsrud, Thor Ole

      (2006)

      VarMet - A novel method for detection of image singularities with application to mammography

      WSEAS Transactions on Signal Processing

      ISSN 1790-5052.

      Volum 2.

      Hefte 9.

      s.1222-1228.

    • Gulsrud, Thor Ole; Engan, Kjersti; Herredsvela, Jostein

      (2006)

      VarMet - A Novel Method for Detection of Image Singularities

    • Gulsrud, Thor Ole; Engan, Kjersti; Herredsvela, Jostein

      (2005)

      Feature extraction in digital mammograms based on optimal and morphological filtering

      SPIE - International Society for Optical Engineering

    • Herredsvela, Jostein; Gulsrud, Thor Ole; Engan, Kjersti

      (2005)

      Detection of circumscribed masses in mammograms using morphological segmentation

      SPIE - International Society for Optical Engineering

      s.902-913.

    • Gulsrud, Thor Ole; Engan, Kjersti; Hanstveit, T.

      (2005)

      Watershed segmentation of detected masser in digital mammograms

      IEEE conference proceedings

    • Tjøtta, Jarle; Engan, Kjersti; Gulsrud, Thor Ole; Skaland, Ivar; Janssen, E.A.M.; Baak, J.P.A.

      (2005)

      Automatic Counting and Classifying of Cell-Nuclei in a Tissue Section

      Tapir Akademisk Forlag

    • Engan, Kjersti; Lillo, Martin; Gulsrud, Thor Ole

      (2005)

      Compression of Digital Mammograms with Region-of-interest Coding Evaluated on a CAD System

      SPIE - International Society for Optical Engineering

    • Engan, Kjersti; Skretting, Karl; Husøy, John Håkon

      (2005)

      ECG Compression Using Signal Dependent Frames and Matching Pursuit

      IEEE Press

    • Engan, Kjersti; Skretting, Karl; Husøy, John Håkon

      (2005)

      Denoising of Images Using Signal Dependent Frames and Matching Pursuit

      IEEE Press

    • Herredsvela, Jostein; Engan, Kjersti; Gulsrud, Thor Ole; Skretting, Karl

      (2005)

      Detection of masses in mammograms by watershed segmentation and sparse representation using learned dictionaries

      Tapir Akademisk Forlag

      s.35-40.

    • Cotter, Shane; Rao, Bhaskar; Engan, Kjersti; Kreutz-Delgado, Kenneth

      (2005)

      Sparse solutions to linear inverse problems with multiple measurement vectors

      IEEE Transactions on Signal Processing

      ISSN 1053-587X.

      Volum 53.

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      s.2477-2488.

    • Herredsvela, Jostein; Engan, Kjersti; Gulsrud, Thor Ole; Skretting, Karl

      (2005)

      Detection of lesions in mammograms using learned dictionaries and sparse representations

      International Federation for Medical and Biological Engineering Proceedings

      ISSN 1680-0737.

      Volum 11.

    • Kristoffersen, Espen; Austvoll, Ivar; Engan, Kjersti

      (2005)

      Dense Motion Field Estimation Using Spatial Filtering and Quasi Eigenfunction Approximations

      IEEE conference proceedings

    • Rao, Bhaskar; Engan, Kjersti; Cotter, Shane; Kreutz-Delgado, Kenneth

      (2003)

      Subset Selection in Noise Based on Diversity Measure Minimization

      ?

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      s.760-770.

    • 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.

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

      (2000)

      Multi-frame Compression: Theory and Design

      Signal Processing

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      Volum 80.

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  • Bøker og kapitler
    • Urdal, Jarle; Engan, Kjersti; Eftestøl, Trygve Christian; Ersdal, Hege Langli

      (2020)

      Signal Processing for Newborn Survival - from Labour to Resuscitation

      Hefte 535.

    • Meinich-Bache, Øyvind; Engan, Kjersti; Eftestøl, Trygve Christian; Austvoll, Ivar

      (2020)

      Automatic Video Analysis in Resuscitation

      Hefte 499.

    • Oppedal, Ketil; Eftestøl, Trygve Christian; Engan, Kjersti; Aarsland, Dag; Beyer, Mona K.

      (2016)

      White Matter Lesions and Pattern Recognition in MRI of Neurodegenerative Dementia

      Hefte 313.

    • Vu, Thi Phuong Huyen; Eftestøl, Trygve Christian; Engan, Kjersti

      (2016)

      Respiratory-cardio signal processing and analysis of resuscitation data on newborns in low-resource settings

      Hefte 302.

  • Formidling
    • Tomasetti, Luca; Engan, Kjersti; Khanmohammadi, Mahdieh; Kurz, Kathinka Dæhli

      (2020)

      mJ-Net: CNN based segmentation of infarcted regions in ischemic cerebral stroke from CTP imaging

    • Tomasetti, Luca; Engan, Kjersti; Khanmohammadi, Mahdieh; Kurz, Kathinka Dæhli

      (2020)

      Automatic segmentation of infarcted regions from computed tomography perfusion imaging using 3D Convolutional Neural Network

    • Engan, Kjersti

      (2019)

      Kunstig intelligens i helsesektoren, Noen eksempler

    • Engan, Kjersti

      (2019)

      Fremtidens medisin - Teknologien bak og noen eksempler

    • Urdal, Jarle; Engan, Kjersti; Eftestøl, Trygve Christian; Yarrot, Ladislaus Blacy; Kidanto, Hussein; Ersdal, Hege Langli

      (2019)

      Noise and Contraction Detection using Fetal Heart Rate and Accelerometer Signals During Labour

    • Engan, Kjersti; Wetteland, Rune; Tomasetti, Luca

      (2019)

      Artificial Intelligence in medicine with examples in Digital Pathology and Computed Tomography Perfusion

    • Schulz, Jörn; Kvaløy, Jan Terje; Engan, Kjersti; Eftestøl, Trygve Christian; Jatosh, Samwel; Hussein, Kidanto; Ersdal, Hege Langli

      (2019)

      State transition modeling of complex monitored health data

    • Wetteland, Rune; Engan, Kjersti; Kvikstad, Vebjørn; Eftestøl, Trygve Christian; Janssen, Emiel

      (2019)

      Multiscale Deep Neural Networks for Multiclass Tissue Classification of Histological Whole-Slide Images

      Medical Imaging with Deep Learning: MIDL 2019

    • Le, Kjell; Eftestøl, Trygve Christian; Engan, Kjersti; Rong, Chunming; Ørn, Stein; Kleiven, Øyunn

      (2018)

      Noise detection and handling in ECG signals

    • Le, Kjell; Eftestøl, Trygve Christian; Engan, Kjersti; Kleiven, Øyunn; Ørn, Stein

      (2018)

      Invariant electrical mean axis in electrocardiogram

    • Le, Kjell; Eftestøl, Trygve Christian; Engan, Kjersti; Ørn, Stein; Kleiven, Øyunn

      (2018)

      High Frequency Noise Detection and Handling in ECG Signals

    • Urdal, Jarle; Barzideh, Faraz; Engan, Kjersti; Skretting, Karl; Mdoe, Paschal Francis; Kamala, Benjamin; Brunner, Sara; Kidanto, Hussein

      (2018)

      Missing Data Reconstruction in Fetal Heart Rate Signals using Shift-invariant dictionary

    • Barzideh, Faraz; Urdal, Jarle; Engan, Kjersti; Skretting, Karl; Mdoe, Paschal Francis; Kamala, Benjamin; Brunner, Sara; Kidanto, Hussein

      (2018)

      Estimation of Missing Data in Fetal Heart Rate Signals Using Shift-Invariant Dictionary

    • Wetteland, Rune; Engan, Kjersti; Eftestøl, Trygve Christian; Kvikstad, Vebjørn; Janssen, Emiel

      (2018)

      Histological Image Segmentation of Bladder Cancer Using Machine Learning

    • Meinich-Bache, Øyvind; Engan, Kjersti; Eftestøl, Trygve Christian; Austvoll, Ivar

      (2018)

      KINECT MODELLING OF CHEST COMPRESSIONS - A FEASIBILITY STUDY FOR CHEST COMPRESSION DEPTH MEASUREMENT USING DIGITAL STRATEGIES

    • Skretting, Karl; Engan, Kjersti

      (2017)

      Sparse Approximation by Matching Pursuit Using Shift-Invariant Dictionary

    • Urdal, Jarle; Engan, Kjersti; Eftestøl, Trygve Christian; Kidanto, Hussein; Yarrot, Ladislaus Blacy; Eilevstjønn, Joar; Ersdal, Hege Langli

      (2017)

      Signal Processing and Classification for Identification of Clinically Important Parameters During Neonatal Resuscitation

    • Urdal, Jarle; Engan, Kjersti; Kvikstad, Vebjørn; Janssen, Emiel

      (2017)

      Prognostic Prediction of Histopathological Images by Local Binary Patterns and RUSBoost

    • Khanmohammadi, Mahdieh; Engan, Kjersti; Eftestøl, Trygve Christian; sæland, charlotte; Larsen, Alf Inge

      (2017)

      SEGMENTATION OF CORONARY ARTERIES FROM X-RAY ANGIOGRAPHY SEQUENCES DURING CONTRAST FLUID PROPAGATION BY IMAGE REGISTRATION

    • Meinich-Bache, Øyvind; Engan, Kjersti; Birkenes, Tonje Søraas; Myklebust, Helge

      (2017)

      Robust real-time chest compression rate detection from smartphone video

    • Meinich-Bache, Øyvind; Engan, Kjersti; Birkenes, Tonje Søraas; Myklebust, Helge

      (2017)

      CPR Measurement and Feedback by Smartphone Camera

    • Meinich-Bache, Øyvind; Engan, Kjersti; Eftestøl, Trygve Christian; Austvoll, Ivar

      (2017)

      Detecting Chest Compression Depth Using a Smartphone Camera and Motion Segmentation

    • Engan, Kjersti

      (2017)

      Image processing in medical applications

    • Tveit, Daniel Myklatun; Engan, Kjersti; Austvoll, Ivar; Meinich-Bache, Øyvind

      (2016)

      Motion Based Detection of Respiration Rate in Infants Using Video

    • Engan, Kjersti

      (2016)

      Sparse representation and learned dictionaries in biomedical applications

    • Naranjo, Valery; Saez, C; Morales, Sandra; Engan, Kjersti; Gomez, S.

      (2016)

      Optic Cup Characterization through Sparse Representation and Dictionary Learning

    • Barzideh, Faraz; Skretting, Karl; Engan, Kjersti

      (2015)

      The flexible signature dictionary

    • Colomer, Adrian; Naranjo, Valery; Engan, Kjersti; Skretting, Karl

      (2015)

      Retinal vessel inpainting using Recursive Least Square Dictionary Learning Algorithm

    • Morales, Sandra; Engan, Kjersti; Naranjo, Valery; Colomer, Adrian

      (2015)

      Detection of diabetic retinopathy and age-related macular degeneration from fundus images through local binary patterns and random forests

    • Engan, Kjersti; Naranjo, Valery; Eftestøl, Trygve; Ørn, Stein; Woie, Leik

      (2015)

      Segmentation of LG Enhanced Cardiac MRI

    • Eftestøl, Trygve Christian; Singsaas, Erlend; Engan, Kjersti; Woie, Leik; Ørn, Stein

      (2015)

      Automatic Detection of Microvascular Obstruction in Patients with Myocardial Infarction

    • Vu, Huyen; Eftestøl, Trygve; Engan, Kjersti; Eilevstjønn, Joar; Linde, Jørgen Erland; Ersdal, Hege

      (2015)

      Exploratory Analysis of Ventilation Signals from Resuscitation Data of Newborns

    • Skretting, Karl; Engan, Kjersti

      (2014)

      Energy Minimization by alpha-erosion for Supervised Texture Segmentation

    • Eftestøl, Trygve; Måløy, Frode; Engan, Kjersti; Kotu, Lasya Priya; Woie, Leik; Ørn, Stein

      (2014)

      A Texture-based Probability Mapping for Localisation of Clinically Important Cardiac Segments in the Myocardium in Cardiac Magnetic Resonance Images from Myocardial Infarction Patients

    • Engan, Kjersti; Woie, Leik; Eftestøl, Trygve

      (2014)

      Defining Angular and Radial Positions and Parameters for Myocardial Pixels in Cardiac MR Images

    • Engan, Kjersti

      (2014)

      Signal- og bildebehandling av medisinske data

    • Rad, Ali Bahrami; Eftestøl, Trygve; Kvaløy, Jan Terje; Ayala, Unai; Kramer-Johansen, Jo; Engan, Kjersti

      (2014)

      Nearest-manifold classification approach for cardiac arrest rhythm interpretation during resuscitation

    • Huyen, Vu; Eftestøl, Trygve; Engan, Kjersti; Eilevstjønn, Joar; Linde, Jørgen Erland; Ersdal, Hege

      (2014)

      Exploratory Analysis of Heart Rate Changes in Newborns to Investigate the Effectiveness of Bag-Mask Ventilation

    • Engan, Kjersti; Naranjo, Valery; Eftestøl, Trygve; Woie, Leik; Schuchter, Arthur; Ørn, Stein

      (2013)

      Automatic Detection of Heart Center in Late Gadolinium Enhanced MRI

    • Rad, Ali Bahrami; Eftestøl, Trygve; Kvaløy, Jan Terje; Ayala, Unai; Kramer-Johansen, Jo; Engan, Kjersti

      (2013)

      Probabilistic Classification Approaches for Cardiac Arrest Rhythm Interpretation during Resuscitation

    • Engan, Kjersti; Naranjo, Valery; Eftestøl, Trygve; Ørn, Stein; Woie, Leik

      (2013)

      Automatic Segmentation of the Epicardium in Late Gadolinium Enhanced Cardiac MR Images

    • Måløy, Frode; Woie, Leik; Eftestøl, Trygve; Engan, Kjersti; Ørn, Stein

      (2013)

      Measuring the Degree of Fibrosity of Myocardial Scars from Late Gadolinium- Enhanced Cardiovascular Magnetic Resonance Images

    • Engan, Kjersti

      (2013)

      Sparse Representations and Learned Dictionaries

    • Oppedal, Ketil; Engan, Kjersti; Aarsland, Dag; Beyer, Mona Kristiansen; Tysnes, Ole-Bjørn; Eftestøl, Trygve

      (2012)

      Using local binary pattern to classify dementia in MRI

    • Kotu, Lasya Priya; Engan, Kjersti; Eftestøl, Trygve; Woie, Leik; Ørn, Stein; Katsaggelos, Aggelos

      (2012)

      LOCAL BINARY PATTERNS USED ON CARDIAC MRI TO CLASSIFY HIGH AND LOW RISK PATIENT GROUPS

    • Eftestøl, Trygve; Woie, Leik; Engan, Kjersti; Kvaløy, Jan Terje; Nilsen, Dennis W.T.; Ørn, Stein

      (2012)

      Texture Analysis to Assess Risk of Serious Arrhythmias after Myocardial Infarction

    • Skretting, Karl; Engan, Kjersti

      (2011)

      Learned dictionaries for sparse image representation: Properties and results

    • Skretting, Karl; Engan, Kjersti

      (2011)

      Image Compression Using Learned Dictionaries by RLS-DLA and Compared with K-SVD

    • Engan, Kjersti

      (2011)

      Adaptive/online learning of dictionaries by RLS-DLA (Recursive Least Squares Dictionary Learning Algorithm) with Applications

    • Kotu, Lasya Priya; Engan, Kjersti; Eftestøl, Trygve; Ørn, Stein; Woie, Leik

      (2011)

      TEXTURE CLASSIFICATION OF SCARRED AND NON-SCARRED MYOCARDIUM IN CARDIAC MRI USING LEARNED DICTIONARIES

    • Kotu, Lasya Priya; Engan, Kjersti; Eftestøl, Trygve; Ørn, Stein; Woie, Leik

      (2011)

      Segmentation of Scarred and Non-Scarred Myocardium in LG Enhanced CMR Images using Intensity-Based Textural Analysis

    • Engan, Kjersti; Eftestøl, Trygve; Ørn, Stein; Kvaløy, Jan Terje; Woie, Leik

      (2010)

      Exploratory Data Analysis of Image Texture and Statistical Features on Myocardium and Infarction Areas in Cardiac Magnetic Resonance Images

    • Engan, Kjersti

      (2010)

      Learning overcompletedictionaries for sparse representation of images

    • Woie, Leik; Eftestøl, Trygve; Engan, Kjersti; Kvaløy, Jan terje; Nilsen, Dennis W.T.; Ørn, Stein

      (2010)

      European Heart Journal 2010;Vol.31(Abstract Supplement):586. [2010] [P3371] Use of late gadolinium enhancement cardiovascular magnetic resonance images and texture analyses to distinguish patients with high and low risk of arrhythmias after myocardial infarction

    • Gulsrud, Thor Ole; Engan, Kjersti; Herredsvela, Jostein

      (2006)

      VarMet - A Novel Method for Detection of Image Singularities

    • Engan, Kjersti; Lillo, Martin; Gulsrud, Thor Ole

      (2005)

      Compression of Digital Mammograms with Region-of-interest Coding Evaluated on a CAD System

    • Tjøtta, Jarle; Engan, Kjersti; Gulsrud, Thor Ole; Skaland, Ivar; Janssen, E.A.M.; Baak, J.P.A.

      (2005)

      Automatic Counting and Classifying of Cell-Nuclei in a Tissue Section

    • Gulsrud, Thor Ole; Engan, Kjersti; Herredsvela, Jostein

      (2005)

      Feature extraction in digital mammograms based on optimal and morphological filtering

    • Herredsvela, Jostein; Gulsrud, Thor Ole; Engan, Kjersti

      (2005)

      Detection of circumscribed masses in mammograms using morphological segmentation

    • Engan, Kjersti; Skretting, Karl; Husøy, John Håkon

      (2005)

      Denoising of Images Using Signal Dependent Frames and Matching Pursuit

    • Herredsvela, Jostein; Engan, Kjersti; Gulsrud, Thor Ole; Skretting, Karl

      (2005)

      Detection of lesions in mammograms using learned dictionaries and sparse representations

    • Herredsvela, Jostein; Engan, Kjersti; Gulsrud, Thor Ole; Skretting, Karl

      (2005)

      Detection of masses in mammograms by watershed segmentation and sparse representations using learned dictionaries

    • Herredsvela, Jostein; Engan, Kjersti; Gulsrud, Thor Ole; Skretting, Karl

      (2005)

      Texture Classification Using Sparse Representations by Learned Compound Dictionaries

    • Skretting, Karl; Engan, Kjersti; Husøy, John Håkon

      (2005)

      ECG compression using signal dependent frames and Matching Pursuit

    • Kristoffersen, Espen; Austvoll, Ivar; Engan, Kjersti

      (2005)

      Dense Motion Field Estimation Using Spatial Filtering and Quasi Eigenfunction Approximations

    • Engan, Kjersti; Fretheim, Karl Fredrik; Gulsrud, Thor Ole

      (2004)

      Compression of Digital Mammograms without Interfering with a System for Automatic Detection of Microcalcifications - MammoScan uCaD

    • Engan, Kjersti; Rao, Bhaskar; Cotter, Shane

      (2004)

      Diversity Measure Minimization Based Method for ComputingSparse Solutions to Linear Inverse Problems with Multiple Measurement Vectors

    • Engan, Kjersti; Gulsrud, Thor Ole; Josefsen, Kai Ruben

      (2003)

      Watermarking of digital mammograms without interfering with automatic detection of microcalcifications

    • Fretheim, Karl Fredrik; Engan, Kjersti

      (2003)

      Comparison of Four Wavelet-Based Methods for Compression of ECG Signals

    • Engan, Kjersti; Skretting, Karl

      (2002)

      A Novel Image Denoising Technique Using Overlapping Frames

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

      (2001)

      Frame based representation and compression of still images

    • Engan, Kjersti; Akselsen, Jan Roger

      (2001)

      Comparison of Frame Based Coding (FBC) with Multi Stage Vector Quantization (MSVQ)

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

      (2001)

      Design of Signal Expansions for Sparse Representation

    • Engan, Kjersti; Rao, Bhaskar; Kreutz-Delgado, Kenneth

      (2001)

      Regularized FOCUSS for Subset Selection in Noise

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

      (2001)

      Sparse representation of images using overlapping frames

    • Ødegård, Jan Erik; Engan, Kjersti; Gulsrud, Thor Ole; Rettedal, Arne

      (2001)

      Redesign of introductory course in electrical and computer engineering at Stavanger University College

    • Ødegård, Jan Erik; Engan, Kjersti; Gulsrud, Thor Ole; Rettedal, Arne

      (2001)

      Redesign of introductory course in electrical and computer engineering at Stavanger University College

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

      (2000)

      Design of general block oriented expansions for efficient signal representation

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

      (2000)

      Transform based ECG signal compression using nonorthogonal vectors

    • Kreutz-Delgado, K.; Rao, B.D.; Engan, Kjersti; Lee, T.-W.; Sejnowski, T.

      (2000)

      Convex/Schur-Convex (CSC) Log-Priors and Sparse Coding

    • Kreutz-Delgado, K.; Rao, B.D.; Engan, Kjersti; Lee, T.-W.; Sejnowski, T.

      (2000)

      Learning Overcomplete Dictionaries: Convex/Schur-Convex(SCS) Log-Priors, Factorial Codes, and Independent/Dependent Component Analysis (I/DCA)

    • Engan, Kjersti; Rao, Bhaskar; Kreutz-Delgado, Kenneth

      (2000)

      Frame Design Using FOCUSS with Method of Optimal Directions (MOD)

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

      (1999)

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

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

      (1999)

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

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

      (1999)

      Method of optimal directions for frame design

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

      (1999)

      Optimized frame design for a matching pursuit based compression scheme

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

      (1997)

      Designing frames for matching pursuit algorithms

  • Kunstnerisk produksjon
    • Herredsvela, Jostein; Engan, Kjersti; Gulsrud, Thor Ole; Skretting, Karl

      (2005)

      Detection of masses in mammograms by watershed segmentation and sparse representation using learned dictionaries

  • Kommersialisering
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