Fritz Albregtsen

Image of Fritz Albregtsen
Norwegian version of this page
Phone +47-22852463
Mobile phone +47-91163005
Room 4459
Visiting address Gaustadalléen 23B Ole-Johan Dahls hus 0373 OSLO
Postal address Postboks 1080 Blindern 0316 OSLO

Academic Interests

My research is mainly focused on medical image analysis. The primary aim is to provide robust prognosis for human cancers, using quantitative image analysis. This work is done together with Master- and PhD-students and colleagues at the Norwegian Radium Hospital. Input data are digital microscopy images of cell nuclei from clinical patient materials covering a number of cancer types. Here we try to find compact and reliable sets of superior textural features for human cancer prognosis within a high-dimensional set of possible feature candidates, thus facilitating a more focused and better treatment of cancer patients.

Another aspect of this effort is the very important step of automatic segmentation of medical images, e.g. cell nuclei, in order to facilitate the high-resolution, high-throughput automatic texture analysis of cell nuclei. This in turn necessitates some focus on methods for quantitative evaluation of segmentation results.

In addition, I work on quantitative metrics for image quality, together with PhD-students and colleagues at Gjøvik University College.


Tags: medical applications, Image analysis, texture analysis, quality metrics


  • Kleppe, Andreas; Albregtsen, Fritz; Vlatkovic, Ljiljana; Pradhan, Manohar; Nielsen, Birgitte; Hveem, Tarjei Sveinsgjerd; Askautrud, Hanne Arenberg; Kristensen, Gunnar S Balle; Nesbakken, Arild; Trovik, Jone; Wæhre, Haakon; Tomlinson, Ian; Shepherd, Neil A.; Novelli, Marco; Kerr, David J. & Danielsen, Håvard Emil (2018). Chromatin organisation and cancer prognosis: a pan-cancer study. The Lancet Oncology.  ISSN 1470-2045.  19(3), s 356- 369 . doi: 10.1016/S1470-2045(17)30899-9
  • Kumar, Rahul Prasanna; Barkhatov, Leonid; Edwin, Bjørn; Albregtsen, Fritz & Elle, Ole Jakob (2017). Portal and hepatic vein segmentation with leak restriction: A pilot study. International Federation for Medical and Biological Engineering Proceedings.  ISSN 1680-0737.  65, s 823- 826 . doi: 10.1007/978-981-10-5122-7_206
  • Holmen, Sigve; Galappaththi-Arachchige, Hashini Nilushika; Kleppa, Elisabeth; Pillay, Pavitra; Naicker, Thajasvarie; Taylor, Myra; Onsrud, Mathias; Kjetland, Eyrun Floerecke & Albregtsen, Fritz (2016). Characteristics of Blood Vessels in Female Genital Schistosomiasis: Paving the Way for Objective Diagnostics at the Point of Care. PLoS Neglected Tropical Diseases.  ISSN 1935-2727.  10(4) . doi: 10.1371/journal.pntd.0004628
  • Hveem, Tarjei Sveinsgjerd; Kleppe, Andreas; Vlatkovic, Ljiljana; Ersvær, Elin; Wæhre, Haakon; Nielsen, Birgitte; Kjær, Marte Avranden; Pradhan, Manohar; Syvertsen, Rolf Anders; Nesheim, John Arne; Liestøl, Knut; Albregtsen, Fritz & Danielsen, Håvard Emil (2016). Chromatin changes predict recurrence after radical prostatectomy. British Journal of Cancer.  ISSN 0007-0920.  114(11), s 1243- 1250 . doi: 10.1038/bjc.2016.96
  • Hveem, Tarjei Sveinsgjerd; Njølstad, Tormund Salvesen; Nielsen, Birgitte; Syvertsen, Rolf Anders; Nesheim, John Arne; Kjæreng, Marna Lill; Kildal, Wanja; Pradhan, Manohar; Marcickiewicz, Janusz; Tingulstad, Solveig; Staff, Anne Cathrine; Haugland, Hans Kristian; Eraker, Runar; Oddenes, Klaus; Rokne, Jan Anders; Tjugum, Jostein; Lode, Margaret Sævik; Amant, Frédéric; Werner, Henrica Maria Johanna; Bjørge, Line; Albregtsen, Fritz; Liestøl, Knut; Salvesen, Helga; Trovik, Jone & Danielsen, Håvard Emil (2016). Changes in Chromatin Structure in Curettage Specimens Identifies High-Risk Patients in Endometrial Cancer. Cancer Epidemiology, Biomarkers and Prevention.  ISSN 1055-9965.  26(1), s 61- 67 . doi: 10.1158/1055-9965.EPI-16-0215
  • Holmen, Sigve; Kjetland, Eyrun Floerecke; Taylor, Myra; Kleppa, Elisabeth; Lillebø, Kristine; Gundersen, Svein Gunnar; Onsrud, Mathias & Albregtsen, Fritz (2015). Colourimetric image analysis as a diagnostic tool in female genital schistosomiasis. Medical Engineering and Physics.  ISSN 1350-4533.  37(3), s 309- 314 . doi: 10.1016/j.medengphy.2014.12.007
  • Holmen, Sigve; Kleppa, Elisabeth; Lillebø, Kristine; Pillay, Pavitra; Van Lieshout, Lisette; Taylor, Myra; Albregtsen, Fritz; Vennervald, Birgitte Jyding; Onsrud, Mathias & Kjetland, Eyrun Floerecke (2015). The first step toward diagnosing female genital schistosomiasis by computer image analysis. American Journal of Tropical Medicine and Hygiene.  ISSN 0002-9637.  93(1), s 80- 86 . doi: 10.4269/ajtmh.15-0071
  • Kumar, Rahul Prasanna; Albregtsen, Fritz; Reimers, Martin; Edwin, Bjørn; Langø, Thomas & Elle, Ole Jakob (2015). Blood vessel segmentation and centerline tracking using local structure analysis. International Federation for Medical and Biological Engineering Proceedings.  ISSN 1680-0737.  45, s 122- 125 . doi: 10.1007/978-3-319-11128-5_31 Show summary
  • Kumar, Rahul Prasanna; Albregtsen, Fritz; Reimers, Martin; Edwin, Bjørn; Langø, Thomas & Elle, Ole Jakob (2015). Three-Dimensional Blood Vessel Segmentation and Centerline Extraction based on Two-Dimensional Cross-Section Analysis. Annals of Biomedical Engineering.  ISSN 0090-6964.  43(5), s 1223- 1234 . doi: 10.1007/s10439-014-1184-4 Show summary
  • Landmark, Knut; Solberg, Anne H Schistad; Albregtsen, Fritz; Austeng, Andreas & Hansen, Roy Edgar (2015). A Radon-Transform-Based Image Noise Filter - With Applications to Multibeam Bathymetry. IEEE Transactions on Geoscience and Remote Sensing.  ISSN 0196-2892.  53(11), s 6252- 6273 . doi: 10.1109/TGRS.2015.2436380

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Published Nov. 4, 2010 1:44 PM - Last modified Jan. 6, 2014 11:53 AM


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