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MANA - Multi scale adaptive normalized averaging
Linköping University, Center for Medical Image Science and Visualization (CMIV). Linköping University, Department of Biomedical Engineering, Medical Informatics. Linköping University, The Institute of Technology.
Linköping University, Department of Biomedical Engineering, Medical Informatics. Linköping University, Center for Medical Image Science and Visualization (CMIV). Linköping University, The Institute of Technology.ORCID iD: 0000-0002-9267-2191
Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Center for Medical Image Science and Visualization (CMIV). Linköping University, Faculty of Health Sciences.
2011 (English)In: 2011 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, IEEE conference proceedings, 2011, 361-364 p.Conference paper, Published paper (Refereed)
Abstract [en]

It is possible to correct intensity inhomogeneity in fat–water Magnetic Resonance Imaging (MRI) by estimating a bias field based on the observed intensities of voxels classified as the pure adipose tissue. The same procedure can also be used to quantify fat volume and its distribution which opens up for new medical applications. The bias field estimation method has to be robust since pure fat voxels are irregularly located and the density varies greatly within and between image volumes. This paper introduces Multi scale Adaptive Normalized Average (MANA) that solves this problem bybasing the estimate on a scale space of weighted averages. By usingthe local certainty of the data MANA preserves details where the local data certainty is high and provides realistic values in sparse areas.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2011. 361-364 p.
Series
International Symposium on Biomedical Imaging. Proceedings, ISSN 1945-7928
National Category
Medical Laboratory and Measurements Technologies Computer Vision and Robotics (Autonomous Systems) Radiology, Nuclear Medicine and Medical Imaging
Identifiers
URN: urn:nbn:se:liu:diva-67848DOI: 10.1109/ISBI.2011.5872424ISI: 000298849400083ISBN: 978-1-4244-4128-0 (print)OAI: oai:DiVA.org:liu-67848DiVA: diva2:413635
Conference
IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Chicago, IL, USA, March 30 2011-April 2 2011
Available from: 2011-04-29 Created: 2011-04-29 Last updated: 2015-10-09

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Romu, ThobiasBorga, MagnusDahlqvist Leinhard, Olof

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Romu, ThobiasBorga, MagnusDahlqvist Leinhard, Olof
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Center for Medical Image Science and Visualization (CMIV)Medical InformaticsThe Institute of TechnologyRadiation PhysicsFaculty of Health Sciences
Medical Laboratory and Measurements TechnologiesComputer Vision and Robotics (Autonomous Systems)Radiology, Nuclear Medicine and Medical Imaging

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