Title
An efficient level set method for simultaneous intensity inhomogeneity correction and segmentation of MR images.
Abstract
Intensity inhomogeneity (bias field) is a common artefact in magnetic resonance (MR) images, which hinders successful automatic segmentation. In this work, a novel algorithm for simultaneous segmentation and bias field correction is presented. The proposed energy functional allows for explicit regularization of the bias field term, making the model more flexible, which is crucial in presence of strong inhomogeneities. An efficient minimization procedure, attempting to find the global minimum, is applied to the energy functional. The algorithm is evaluated qualitatively and quantitatively using a synthetic example and real MR images of different organs. Comparisons with several state-of-the-art methods demonstrate the superior performance of the proposed technique. Desirable results are obtained even for images with strong and complicated inhomogeneity fields and sparse tissue structures.
Year
DOI
Venue
2016
10.1016/j.compmedimag.2015.11.005
Computerized Medical Imaging and Graphics
Keywords
Field
DocType
MRI,Segmentation,Bias field,Intensity inhomogeneity,Level set
Computer vision,Segmentation,Level set method,Level set,Minification,Regularization (mathematics),Artificial intelligence,Energy functional,Medicine,Magnetic resonance imaging,Bias field
Journal
Volume
ISSN
Citations 
48
0895-6111
5
PageRank 
References 
Authors
0.40
35
8
Name
Order
Citations
PageRank
Tatyana Ivanovska1164.79
Rene Laqua2323.10
Lei Wang350.40
Andrea Schenk431031.12
Jeong Hee Yoon550.40
katrin hegenscheid680.78
Henry Völzke79615.16
Volkmar Liebscher8304.93