72 search results - page 2 / 15 » Estimation of Image Bias Field with Sparsity Constraints |
NIPS
2004
13 years 7 months ago
2004
The correction of bias in magnetic resonance images is an important problem in medical image processing. Most previous approaches have used a maximum likelihood method to increase...
IPMI
2003
Springer
14 years 6 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 3 months ago
2010
IEEE
We propose a motion deblurring algorithm that exploits sparsity constraints of image patches using one single frame. In our formulation, each image patch is encoded with sparse co...
PRL
2010
13 years 4 months ago
2010
: Single training image face recognition is one of main challenges to appearance-based pattern recognition techniques. Many classical dimensionality reduction methods such as LDA h...
ICCV
1999
IEEE
14 years 7 months ago
1999
IEEE
Given estimates of the motion eld optic ow from an image sequence, it is possible to recover translational direction, ~T, using a variety of techniques. One such technique, known ...