Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
A fast global variational bias field correction method for MR images
Ist Teil von
2013 8th International Symposium on Image and Signal Processing and Analysis (ISPA), 2013, p.667-671
Ort / Verlag
University of Trieste and University of Zagreb
Erscheinungsjahr
2013
Quelle
IEEE Xplore
Beschreibungen/Notizen
Magnetic resonance (MR) images are prone to inhomogeneity artefacts that hinder an efficient automatic segmentation. Existing correction methods are often dependent on initialization and computationally expensive. This paper proposes a novel variational approach for the simultaneous bias field correction and image segmentation together with its efficient implementation, which produces the global solution that does not depend on initializations. The method is compared against another recently proposed method in terms of speed, efficiency, and performance.