20 search results - page 2 / 4 » Bias Field Correction for MRI Images |
IPMI
2003
Springer
14 years 8 months ago
2003
Springer
Abstract. We propose a novel bias correction method for magnetic resonance (MR) imaging that uses complementary body coil and surface coil images. The former are spatially homogene...
ICIP
2010
IEEE
13 years 5 months ago
2010
IEEE
This paper presents a novel level set approach to simultaneous tissue segmentation and bias correction of Magnetic Resonance Imaging (MRI) images. We first model the distribution ...
MICCAI
2003
Springer
14 years 8 months ago
2003
Springer
Abstract. This paper describes effort towards automatic tissue segmentation in neonatal MRI. Extremely low contrast to noise ratio (CNR), regional intensity changes due to RF coil ...
TMI
2002
13 years 7 months ago
2002
It has been shown that the difference of squares cost function used by standard realignment packages (SPM and AIR) can lead to the detection of spurious activations, because the mo...
CVPR
2010
IEEE
14 years 4 months ago
2010
IEEE
We propose a new scheme to estimate image bias field through introducing two sparsity constraints. One is that the bias-free image has concise representation with image gradients o...