Name
Abstract | ||
|---|---|---|
In this paper, we study denoising of multicomponent images. The presented procedures are spatial wavelet-based denoising techniques, based on Bayesian least-squares optimization procedures, using prior models for the wavelet coefficients that account for the correlations between the spectral bands. We analyze three mixture priors: Gaussian scale mixture models, Bernoulli-Gaussian mixture models and Laplacian mixture models. These three prior models are studied within the same framework of least-squares optimization. The presented procedures are compared to Gaussian prior model and single-band denoising procedures. We analyze the suppression of non-correlated as well as correlated white Gaussian noise on multispectral and hyperspectral remote sensing data and Rician distributed noise on multiple images of within-modality magnetic resonance data. It is shown that a superior denoising performance is obtained when (a) the interband covariances are fully accounted for and (b) prior models are used that better approximate the marginal distributions of the wavelet coefficients. |
Year | DOI | Venue |
|---|---|---|
2008 | 10.1016/j.imavis.2007.11.003 | Image Vision Comput. |
Keywords | Field | DocType |
bayesian least-squares optimization procedure,denoising,multicomponent images,bayesian estimation,prior model,wavelet least-squares estimator,multicomponent image,wavelet coefficient,gaussian scale mixture model,superior denoising performance,least squares estimators,wavelets,bernoulli-gaussian mixture model,correlated white gaussian noise,single-band denoising procedure,laplacian mixture model,least squares estimators.,mixture prior,least square,mixture model,gaussian mixture model,white gaussian noise,magnetic resonance | Least squares,Noise reduction,Pattern recognition,Gaussian,Artificial intelligence,Prior probability,Additive white Gaussian noise,Bayes estimator,Mixture model,Mathematics,Wavelet | Journal |
Volume | Issue | ISSN |
26 | 7 | Image and Vision Computing |
Citations | PageRank | References |
7 | 0.50 | 22 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Steve De Backer | 1 | 200 | 15.14 |
| Aleksandra Pizurica | 2 | 1238 | 102.29 |
| Bruno Huysmans | 3 | 27 | 2.12 |
| Wilfried Philips | 4 | 1476 | 124.85 |
| Paul Scheunders | 5 | 1190 | 102.87 |