8 search results - page 1 / 2 » Adaptive Magnetic Resonance Image Denoising Using Mixture Mo... |
DICTA
2003
14 years 8 days ago
2003
Abstract. This paper proposes a new adaptive wavelet-based Magnetic Resonance images denoising algorithm. A Rician distribution for background-noise modelling is introduced and a M...
VLSISP
1998
13 years 10 months ago
1998
In this paper, we present preliminary results comparing the nature of the errors introduced by the mixture of principal components (MPC) model with a wavelet transform and the Karh...
ICIP
2001
IEEE
15 years 14 days ago
2001
IEEE
ICIP
2007
IEEE
15 years 17 days ago
2007
IEEE
We develop a hierarchical, nonparametric statistical model for wavelet representations of natural images. Extending previous work on Gaussian scale mixtures, wavelet coefficients ...
CIMAGING
2009
13 years 12 months ago
2009
Owing to the stochastic nature of discrete processes such as photon counts in imaging, real-world data measurements often exhibit heteroscedastic behavior. In particular, time ser...