Kjersti Engan

Professor i informasjonsteknologi

Det teknisk-naturvitenskapelige fakultet
Institutt for data- og elektroteknologi
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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, and as a member of IEEE Image, Video, and Multidimensional Signal Processing Technical Committee (IVMSP). She is an associate editor for SIAM Journal on Imaging Sciences (SIIMS).

Kjersti Engan Research Gate profile

Kjersti Engan Google Scholar
Publikasjoner
  • Vitenskapelige publikasjoner
  • Bøker og kapitler
    • Urdal, Jarle

      (2020)

      Signal Processing for Newborn Survival - from Labour to Resuscitation.

      ISBN 978-82-7644-942-6.

      Hefte 535.

    • Meinich-Bache, Øyvind; Austvoll, Ivar

      (2020)

      Automatic Video Analysis in Resuscitation.

      ISBN 978-82-7644-900-6.

      Hefte 499.

    • Vu, Thi Phuong Huyen

      (2016)

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

      ISBN 978-82-7644-661-6.

      Hefte 302.

    • Oppedal, Ketil; Aarsland, Dag; Beyer, Mona K.

      (2016)

      White Matter Lesions and Pattern Recognition in MRI of Neurodegenerative Dementia.

      ISBN 978-82-7644-674-6.

      Hefte 313.

  • Formidling
    • Kanwal, Neel; Engan, Kjersti

      (2024)

      Extract, Detect, Eliminate: Enhancing Reliability and Performance of Computational Pathology through Artifact Processing Pipelines.

      Science Talks.

      ISSN 2772-5693.

      DOI: 10.1016/j.sctalk.2024.100305

    • Kanwal, Neel; Rong, Chunming; Engan, Kjersti

      (2024)

      Artifact Detection in Whole Slide Images for Reliable Computational Pathology Systems .

      CLARIFY Final Conference;

      2024-01-25 - 2024-01-26.

    • Kanwal, Neel; Eftestøl, Trygve Christian; Khoraminia, Farbod; Tahlita C. M, Zuiverloon; Engan, Kjersti

      (2023)

      Vision Transformers for Small Histological Datasets Learned Through Knowledge Distillation.

      27th Pacific-Asia Conference on Knowledge Discovery and Data Mining, PAKDD 2023;

      2023-05-25 - 2023-05-28.

    • Høllesli , Liv Jorunn; Tomasetti, Luca; Mouridsen, Kim; Kurz, Martin; Engan, Kjersti; Khanmohammadi, Mahdieh; Fjetland, Lars; Kurz, Kathinka Dæhli

      (2023)

      In patients with large vessel occlusion acute ischemic stroke, the distribution of CTP capillary transit time heterogeneity voxel values differs in recanalized versus non-recanalized patients.

      European Stroke Organisation Conference 2023;

      2023-05-24 - 2023-05-26.

    • Høllesli , Liv Jorunn; Tomasetti, Luca; Engan, Kjersti; Schulz, Jörn; Mouridsen, Kim; Kurz, Kathinka Dæhli

      (2023)

      The combination of CBF and transit time coefficient variation seems promising in predicting tissue outcome in patients with acute ischemic stroke and large vessel occlusions .

      European Stroke Organisation Conference 2023;

      2023-05-24 - 2023-05-26.

    • Kanwal, Neel; Roger, Amundsen; Hardardottir, Helga; Tomasetti, Luca; Undersrud, Erling Sandøy; Janssen, Emiel; Engan, Kjersti

      (2023)

      Detection and Localization of Melanoma Skin Cancer in Histopathological Whole Slide Images.

      EUSIPCO 2023;

      2023-09-04 - 2023-09-08.

    • Kanwal, Neel; Rong, Chunming; Engan, Kjersti

      (2023)

      Artifact Processing Pipeline for Reliable Computational Pathology Systems.

      CLARIFY Stavanger Meetup;

      2023-06-05 - 2023-06-07.

    • Kanwal, Neel; Janssen, Emiel; Engan, Kjersti

      (2023)

      Balancing Privacy and Progress in Artificial Intelligence: Anonymization in Histopathology for Biomedical Research and Education.

      1st International Conference on Frontiers of Artificial Intelligence, Ethics, and Multidisciplinary Applications;

      2023-09-25 - 2023-09-26.

    • Wang, Yuandou; Kanwal, Neel; Engan, Kjersti; Rong, Chunming; Zhao, Zhiming

      (2023)

      Towards a Privacy-Preserving Distributed Cloud Service for Preprocessing Very Large Medical Images.

      2023 IEEE International Conference on Digital Health (ICDH);

      2023-07-02 - 2023-07-08.

    • Kanwal, Neel; Farbod, Khoraminia; Tahlita, Zuiverloon; Rong, Chunming; Engan, Kjersti

      (2022)

      Detection of Histopathological Artifacts in Whole Slide Images.

      hAIst Conference;

      2022-06-13 - 2022-06-14.

    • Kanwal, Neel; Khoraminia, Farbod; Zuiverloon, Tahlita C M; Rong, Chunming; Engan, Kjersti

      (2022)

      Blood and damaged tissue detection in histological Whole Slide Image.

      NORA 2022;

      2022-06-09 - 2022-06-10.

    • Høllesli, Liv Jorunn; Tomasetti, Luca; Khanmohammadi, Mahdieh; Engan, Kjersti; Schulz, Jörn; Kurz, Friedrich Martin Wilhelm; Kurz, Kathinka Dæhli

      (2022)

      Kombinasjon av de parametriske CT perfusjonskartene TTP og CoV i pasienter med akutt ischemisk hjerneslag uten storkarsokklusjon predikerer penumbra. .

      Radiologisk høstmøte 2022;

      2022-10-26 - 2022-10-28.

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

      (2022)

      Predictions of infarcted areas in acute ischemic stroke using 4D Temporal Convolution Network.

      NORA Annual Conference 2022;

      2022-06-09 - 2022-06-10.

    • Fuster Navarro, Saul; Eftestøl, Trygve Christian; Engan, Kjersti; Kiraz, Umay; Janssen, Emiel; Kvikstad, Vebjørn

      (2022)

      Towards Automatic Staging of Non-Muscle Invasive Bladder Cancer.

      NORA 2022;

      2022-06-09 - 2022-06-10.

    • Fuster Navarro, Saul; Eftestøl, Trygve Christian; Engan, Kjersti; Kiraz, Umay; Janssen, Emiel; Kvikstad, Vebjørn

      (2022)

      Towards Automatic Staging of NonMuscle Invasive Bladder Cancer.

      hAIST 22;

      2022-06-13 - 2022-06-14.

    • (2022)

      Predictions of infarcted areas in acute ischemic stroke using 4D TCN.

      hAIst Conference ;

      2022-06-13 - 2022-06-14.

    • Fuster Navarro, Saul; Eftestøl, Trygve Christian; Engan, Kjersti; Kiraz, Umay; Kvikstad, Vebjørn; Janssen, Emiel

      (2022)

      Invasive Cancerous Area Detection in Non-Muscle Invasive Bladder Cancer Whole Slide Images.

      IVMSP 2022;

      2022-06-26 - 2022-06-29.

    • Fuster Navarro, Saul; Eftestøl, Trygve Christian; Engan, Kjersti

      (2022)

      Nested Multiple Instance Learning with Attention Mechanisms.

      ICMLA 2022;

      2022-12-12 - 2022-12-14.

    • Garcia-Torres Fernandez, Jorge; Meinich-Bache, Øyvind; Brunner, Sara; Anders, Johannessen; Rettedal, Siren; Engan, Kjersti

      (2022)

      Towards using Thermal Cameras in Birth Detection.

      2022 IEEE 14th Image, Video, and Multidimensional Signal Processing Workshop (IVMSP);

      2022-06-26 - 2022-06-29.

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

      (2022)

      Multi-input segmentation of damaged brain in acute ischemic stroke patients using slow fusion with skip connection.

      Proceedings of the Northern Lights Deep Learning Workshop;

      2022-01-10 - 2022-01-12.

    • Kanwal, Neel; Fuster, Saul; Khoraminia, Farbod; Zuiverloon, Tahlita C M; Rong, Chunming; Engan, Kjersti

      (2022)

      Quantifying the effect of color processing on blood and damaged tissue detection in Whole Slide Images.

      IVMSP 2022;

      2022-06-28.

    • Engan, Kjersti; Wetteland, Rune; Fuster Navarro, Saul; Kanwal, Neel

      (2022)

      Examples of artificial intelligence in computational pathology .

      hAIst Conference – Health-related Artificial Intelligence in Stavanger;

      2022-06-13 - 2022-06-14.

    • Engan, Kjersti; Meinich-Bache, Øyvind; Urdal, Jarle

      (2022)

      Improved Newborn care based on artificial intelligence.

      hAIst Conference – Health-related Artificial Intelligence in Stavanger;

      2022-06-13 - 2022-06-14.

    • Rogne Nilsen, Ninnie Therese; Engan, Kjersti; Rettedal, Siren; Meinich-Bache, Øyvind

      (2021)

      Kameraer og kunstig intelligens kan redde liv på fødestua.

    • Engan, Kjersti; Rettedal, Siren; Rogne Nilsen, Ninnie Therese

      (2021)

      NewbornTime - Kameraer og kunstig intelligens kan redde liv på fødestua .

    • Engan, Kjersti; Rettedal, Siren; Hollund, Janet Molde

      (2021)

      Vil filme fødsler med varmesøkende kamera.

    • Schrøder Karlsen, Andrea; Engan, Kjersti; Rettedal, Siren

      (2021)

      Vil gi nyfødte bedre helsehjelp med varmekameraer og kunstig intelligens.

    • Engan, Kjersti

      (2021)

      NewbornTime - Informasjon til deltagere .

    • Engan, Kjersti

      (2021)

      NewbornTime - participant information.

    • Engan, Kjersti; Riiber, Kjersti

      (2021)

      NewbornTime - Improved newborn care based on video and artificial intelligence, project information .

    • Engan, Kjersti

      (2021)

      NewbornTime – Forbedret nyfødtomsorg basert på video og kunstig intelligens, Brukergruppeinformasjon.

      Brukergruppeinformasjon;

      2021-10-28.

    • Engan, Kjersti

      (2021)

      NewbornTime – Forbedret nyfødtomsorg basert på video og kunstig intelligens: Hva, hvordan og hvorfor? .

      Informasjonsmøte med leger på SUS;

      2021-10-07.

    • Wetteland, Rune; Engan, Kjersti; Eftestøl, Trygve Christian

      (2021)

      Parameterized Extraction of Tiles in Multilevel Gigapixel Images (Oral presentation).

      International Symposium on Image and Signal Processing and Analysis;

      2021-09-13 - 2021-09-15.

    • Kanwal, Neel; Engan, Kjersti; Rong, Chunming

      (2021)

      A Preprocessing Pipeline for Histopathological Whole Slide Images.

      NOBIM 2021;

      2021-09-13 - 2021-09-14.

    • Fuster Navarro, Saul; Engan, Kjersti; Eftestøl, Trygve Christian

      (2021)

      A Nested Multiple Instance Learning Framework.

      NOBIM 2021;

      2021-09-13 - 2021-09-14.

    • 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.

      Northern Lights Deep Learning Workshop 2020;

      2020-01-19 - 2020-01-21.

    • 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.

      9th International Conference on Neurological Disorders and Stroke;

      2020-02-28 - 2020-02-29.

    • Engan, Kjersti

      (2020)

      Safer Births through signal processing and artificial intelligence.

      webinar;

      2020-11-22.

    • Engan, Kjersti

      (2020)

      Kunstig intelligens og medisinske utfordringer.

      Girls Day in Tech 2020;

      2020-09-22.

    • Engan, Kjersti

      (2020)

      Medisinske utfordringer og teknologi.

      Jenter og teknologi: Teknologiaften 2020;

      2020-02-12.

    • 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 .

      17th Scandinavian Conference on Health Informatics (SHI2019);

      2019-11-12 - 2019-11-13.

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

      (2019)

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

      Rice Data Science Conference 2019;

      2019-10-14 - 2019-10-15.

    • Engan, Kjersti

      (2019)

      Fremtidens medisin - Teknologien bak og noen eksempler.

      Arendalsuka - UiS arrangement - Fremtidens medisin;

      2019-08-12 - 2019-08-16.

    • Engan, Kjersti

      (2019)

      Kunstig intelligens i helsesektoren, Noen eksempler.

      Arendalsuka - NORA arrangement - kunstig intelligens i helsesektoren;

      2019-08-12 - 2019-08-16.

    • 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.

    • 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.

      5th Joint Statistical Meeting DAGStat 2019;

      2019-03-18 - 2019-03-22.

    • 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.

      International Conference on Image Processing (ICIP);

      2018-10-07 - 2018-10-10.

    • 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.

      26th European Signal Processing Conference (EUSIPCO);

      2018-09-03 - .

    • 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 2018;

      2018-09-03 - 2018-09-07.

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

      (2018)

      Invariant electrical mean axis in electrocardiogram.

      Computing in cardiology 2018 ;

      2018-09-23 - 2018-09-26.

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

      (2018)

      Histological Image Segmentation of Bladder Cancer Using Machine Learning.

      NOBIM 2018 - National conference on image processing and pattern recognition;

      2018-03-12 - 2018-03-13.

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

      (2018)

      Noise detection and handling in ECG signals.

      Norsk Forening for Bildebehandling og Mønstergjenkjenning;

      2018-03-12 - 2018-03-13.

    • 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.

      NOBIM 2018 - National conference on image processing and pattern recognition;

      2018-03-12 - 2018-03-13.

    • 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 ;

      2017-11-14 - 2017-11-16.

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

      (2017)

      Prognostic Prediction of Histopathological Images by Local Binary Patterns and RUSBoost.

      25th European Signal Processing Conference (EUSIPCO);

      2017-08-28 - 2017-09-02.

    • 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 International Conference on Signal and Image Processing Applications (IEEE ICSIPA 2017);

      2017-09-12 - 2017-09-14.

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

      (2017)

      Robust real-time chest compression rate detection from smartphone video.

      Image and Signal Processing and Analysis (ISPA);

      2017-09-18 - 2017-09-20.

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

      (2017)

      Detecting Chest Compression Depth Using a Smartphone Camera and Motion Segmentation.

      Scandinavian Conference on Image Analysis;

      2017-06-12 - 2017-06-14.

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

      (2017)

      CPR Measurement and Feedback by Smartphone Camera.

      Emergency Cardiovascular Care Update (ECCU) ;

      2017-12-04 - 2017-12-08.

    • Skretting, Karl; Engan, Kjersti

      (2017)

      Sparse Approximation by Matching Pursuit Using Shift-Invariant Dictionary.

      Scandinavian Conference on Image Analysis;

      2017-06-12 - 2017-06-14.

    • Engan, Kjersti

      (2017)

      Image processing in medical applications.

      37 ºC Life Science Technology Conference & Exhibition;

      2017-06-06 - 2017-06-07.

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

      (2016)

      Motion Based Detection of Respiration Rate in Infants Using Video.

      IEEE International Conference on Image Processing, ICIP 2016;

      2016-09-25 - 2016-09-28.

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

      (2016)

      Optic Cup Characterization through Sparse Representation and Dictionary Learning.

      EUSIPCO 2016;

      2016-08-28 - 2016-09-02.

    • Engan, Kjersti

      (2016)

      Sparse representation and learned dictionaries in biomedical applications.

      IVLOPDE: International conference on "Imaging, Vision and Learning based on Optimization and PDEs”;

      2016-08-29 - 2016-09-01.

    • 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.

      International conference on image processing (ICIP);

      2015-09-27 - 2015-09-30.

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

      (2015)

      The flexible signature dictionary.

      Eusipco ;

      2015-08-31 - 2015-09-04.

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

      (2015)

      Segmentation of LG Enhanced Cardiac MRI.

      Bioimagin, Biosted;

      2015-01-12 - 2015-01-15.

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

      (2015)

      Exploratory Analysis of Ventilation Signals from Resuscitation Data of Newborns.

      Biosignals, Biostec;

      2015-01-12 - 2015-01-15.

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

      (2015)

      Automatic Detection of Microvascular Obstruction in Patients with Myocardial Infarction.

      Computing in Cardiology 2015;

      2015-09-06 - 2015-09-09.

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

      (2015)

      Retinal vessel inpainting using Recursive Least Square Dictionary Learning Algorithm.

      International Conference on Image Processing Theory, Tools and Applications (IPTA), 2015 ;

      2015-11-10 - 2015-11-13.

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

      (2014)

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

      Computing in Cardiology 2014;

      2014-09-07 - 2014-09-10.

    • 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 2014;

      2014-09-07 - 2014-09-10.

    • Engan, Kjersti

      (2014)

      Signal- og bildebehandling av medisinske data.

      Girl Geek Dinners Stavanger;

      2014-11-05.

    • 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.

      International Conference on Image Processing (ICIP) ;

      2014-10-27 - 2014-10-30.

    • 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.

      International COnference on Acoustics, Speech, and Signal Processing (ICASSP) ;

      2014-05-04 - 2014-05-09.

    • Skretting, Karl; Engan, Kjersti

      (2014)

      Energy Minimization by alpha-erosion for Supervised Texture Segmentation.

      International Conference on Image Analysis and Recognition (ICIAR) ;

      2014-10-22 - 2014-10-24.

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

      (2013)

      Automatic Detection of Heart Center in Late Gadolinium Enhanced MRI.

      MEDICON (Mediterranean Conference on Medical and Biological Engineering and Computing);

      2013-09-25 - 2013-09-28.

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

      (2013)

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

      Computing in Cardiology;

      2013-09-22 - 2013-09-25.

    • 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.

      Computing in Cardiology;

      2013-09-22 - 2013-09-25.

    • 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.

      Computing in Cardiology;

      2013-09-22 - 2013-09-25.

    • Engan, Kjersti

      (2013)

      Sparse Representations and Learned Dictionaries.

      LabHuman, seminar;

      2013-11-14.

    • 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.

      EUSIPCO 2012;

      2012-08-27 - 2012-08-31.

    • 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.

      Computing in Cardiology 2012;

      2012-09-09 - 2012-09-12.

    • 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 International Symposium on Biomedical Imaging ;

      2012-05-02 - 2012-05-05.

    • Engan, Kjersti

      (2011)

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

      SMALL Workshop on Sparse Dictionary Learning 2011;

      2011-01-06 - 2011-01-07.

    • Skretting, Karl; Engan, Kjersti

      (2011)

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

      ICASSP 2011 (International Conference on Acoustics, Speech and Signal Processing);

      2011-05-22 - 2011-05-27.

    • 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.

      ICIP 2011;

      2011-09-11 - 2011-09-14.

    • 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.

      EMBC 2011;

      2011-08-30 - 2011-09-03.

    • Skretting, Karl; Engan, Kjersti

      (2011)

      Learned dictionaries for sparse image representation: Properties and results.

      SPIE 2011 - Wavelets and Sparsity XIV;

      2011-08-21 - 2011-08-24.

    • 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.

      Congress, European Society of Cardiology (ESC);

      2010-08-28 - 2010-09-01.

    • 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.

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

      2010-08-31 - 2010-09-04.

    • Engan, Kjersti

      (2010)

      Learning overcompletedictionaries for sparse representation of images.

      INSPIRE 2010;

      2010-09-06 - 2010-09-08.

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

      (2006)

      VarMet - A Novel Method for Detection of Image Singularities.

      The 6th WSEAS International Conference on Signal Speech and Image Processing 2006 (SSIP'06);

      2006-09-22 - 2006-09-24.

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

      (2005)

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

      SPIE International Symposium, Medical Imaging 2005;

      2005-02-12 - 2005-02-17.

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

      (2005)

      Denoising of Images Using Signal Dependent Frames and Matching Pursuit.

      2005 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2005);

      2005-03-18 - 2005-03-23.

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

      (2005)

      Dense Motion Field Estimation Using Spatial Filtering and Quasi Eigenfunction Approximations.

      IEEE International Conference on Image Processing (ICIP);

      2005-09-11 - 2005-09-14.

    • 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.

      NORSIG 2005, Norsk symposium i Signalbehandling;

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

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

      (2005)

      Feature extraction in digital mammograms based on optimal and morphological filtering.

      SPIE International Symposium Medical Imaging 2005 - Image Processing;

      2005-02-12 - 2005-02-17.

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

      (2005)

      Detection of circumscribed masses in mammograms using morphological segmentation.

      Medical Imaging 2005 - Image Processing;

      2005-02-13 - 2005-02-17.

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

      (2005)

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

      Norsig-2005 Norsk symposium i signalbehandling;

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

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

      (2005)

      Detection of lesions in mammograms using learned dictionaries and sparse representations.

      3rd European Medical & Biological Engineering Conference IFMBE European Conference on Biomedical Engineering;

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

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

      (2005)

      Texture Classification Using Sparse Representations by Learned Compound Dictionaries.

      Spars'05 Signal Processing with Adaptive Sparse Structured Representations;

      2005-11-16 - 2005-11-18.

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

      (2005)

      ECG compression using signal dependent frames and Matching Pursuit.

      2005 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2005);

      2005-03-18 - 2005-03-23.

    • 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.

      NOBIM 2004;

      2004-05-27.

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

      (2004)

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

      Int. Conference on Acoustics, Speech, and Signal Processing;

      2004-05-17.

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

      (2003)

      Watermarking of digital mammograms without interfering with automatic detection of microcalcifications.

      IEEE International Conference on Image Processing, ICIP-2003;

      2003-09-14 - 2003-09-17.

    • Fretheim, Karl Fredrik; Engan, Kjersti

      (2003)

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

      NORSIG 2003;

      2003-10-02 - 2003-10-04.

    • Engan, Kjersti; Skretting, Karl

      (2002)

      A Novel Image Denoising Technique Using Overlapping Frames.

      2nd. IASTED international conference on Visualization, Imaging, and Image Processing;

      2002-09-09 - 2002-09-12.

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

      (2001)

      Regularized FOCUSS for Subset Selection in Noise.

      NORSIG 2000;

    • 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; 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.

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

      (2001)

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

      International Conference on Engineering Education 2001;

      2001-08-06 - 2001-08-10.

    • Engan, Kjersti; Akselsen, Jan Roger

      (2001)

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

      NORSIG 2001;

      2001-10-18 - 2001-10-20.

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

      (2001)

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

      International Conference on Engineering Education 2001;

      2001-08-06 - 2001-08-10.

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

      (2000)

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

      NORSIG-99 (Norwegian Signal Processing Symposium);

    • 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).

      6th Joint Symposium on Neural Computation;

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

      (2000)

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

      6th Joint Symposium on Neural Computation;

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

      (2000)

      Transform based ECG signal compression using nonorthogonal vectors.

      Konferanse;

      1996-11-30 - .

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

      (2000)

      Design of general block oriented expansions for efficient signal representation.

      utenTitteltekst;

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

      (1999)

      Optimized frame design for a matching pursuit based compression scheme.

      EUSIPCO;

    • 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;

    • 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;

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

      (1997)

      Designing frames for matching pursuit algorithms.

      Universitetet i Stavanger.

  • 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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