EM algorithm for estimating the noise deviation of the image in the wavelet domain

Authors
Lin, ZM Kang, XL Zhang, LM
Citation
Zm. Lin et al., EM algorithm for estimating the noise deviation of the image in the wavelet domain, J INF M W, 20(3), 2001, pp. 199-202
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF INFRARED AND MILLIMETER WAVES
ISSN journal
10019014 → ACNP
Volume
20
Issue
3
Year of publication
2001
Pages
199 - 202
Database
ISI
SICI code
1001-9014(200106)20:3<199:EAFETN>2.0.ZU;2-I
Abstract
A new method was proposed to estimate noisy image's quality. This approach uses Gaussian mixture model to simulate the histogram of the highest subban d's coefficients in the wavelet domain. The parameters of this model can be calculated by EM algorithm. The smallest deviation of the Gaussian mixture model is selected as the noise deviation. The authors' proposed method can provide better result than the other traditional ones.