Detail publikačního výsledku

Optimization of wavelet-based de-noising in MRI

BARTUŠEK, K.; SMÉKAL, Z.; PŘINOSIL, J.

Originální název

Optimization of wavelet-based de-noising in MRI

Anglický název

Optimization of wavelet-based de-noising in MRI

Druh

Článek WoS

Originální abstrakt

In the paper, a method for MR image enhancement using the wavelet analysis is described. The wavelet analysis is concentrated on the influence of threshold level and mother wavelet choices on the resultant MR image. The influence is expressed by the measurement and mutual comparison of three MT image parameters: signal to noise ratio, image contrast, and linear slope edge approximation. Unlike most standard methods working exclusively with the MR image magnitude, in our case both the MR image magnitude and the MR image phase were used in the enhancement process. Some recommendations are mentioned in conclusion, such as how to use a combination of mother wavelets with threshold levels for various types of MR images.

Anglický abstrakt

In the paper, a method for MR image enhancement using the wavelet analysis is described. The wavelet analysis is concentrated on the influence of threshold level and mother wavelet choices on the resultant MR image. The influence is expressed by the measurement and mutual comparison of three MT image parameters: signal to noise ratio, image contrast, and linear slope edge approximation. Unlike most standard methods working exclusively with the MR image magnitude, in our case both the MR image magnitude and the MR image phase were used in the enhancement process. Some recommendations are mentioned in conclusion, such as how to use a combination of mother wavelets with threshold levels for various types of MR images.

Klíčová slova

Wavelet transformation, filtering technique, magne-tic resonance imaging.

Klíčová slova v angličtině

Wavelet transformation, filtering technique, magne-tic resonance imaging.

Autoři

BARTUŠEK, K.; SMÉKAL, Z.; PŘINOSIL, J.

Rok RIV

2012

Vydáno

06.04.2011

ISSN

1210-2512

Periodikum

Radioengineering

Svazek

20

Číslo

1

Stát

Česká republika

Strany od

85

Strany do

93

Strany počet

9

BibTex

@article{BUT43413,
  author="Karel {Bartušek} and Zdeněk {Smékal} and Jiří {Přinosil}",
  title="Optimization of wavelet-based de-noising in MRI",
  journal="Radioengineering",
  year="2011",
  volume="20",
  number="1",
  pages="85--93",
  issn="1210-2512"
}