Bilateral Filtering of fMRI Data
2008 (English)In: IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING, ISSN 1932-4553, Vol. 2, no 6, 891-896 p.Article in journal (Refereed) Published
We present a class of adaptive filtering techniques of functional magnetic resonance imaging (fMRI) data related to bilateral filtering. This class of methods average activities in consistent regions rather than regions that maximize correlation with a BOLD model. Similarity measures based on signal similarity and anatomical similarity are discussed and compared experimentally to standard linear low pass filtering. It is demonstrated that adaptive filtering provides improved detection of activated regions.
Place, publisher, year, edition, pages
2008. Vol. 2, no 6, 891-896 p.
Biomedical image processing, magnetic resonance imaging, nonlinear filters
National CategoryEngineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-18152DOI: 10.1109/JSTSP.2008.2007826ISI: 000265495700008OAI: oai:DiVA.org:liu-18152DiVA: diva2:216491