Detail publikace

Wavelet-based de-noising techniques in MRI

BARTUŠEK, K. PŘINOSIL, J. SMÉKAL, Z.

Originální název

Wavelet-based de-noising techniques in MRI

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

The paper deals with techniques for the enhancement of magnetic resonance (MR) images using the wavelet analysis, which is assessed from the viewpoint of choosing the mother wavelet and the thresholding technique. Three parameters are used as objective criteria of the quality of image enhancement: the signal-to-noise ratio (SNR), image contrast, and linear approximation of edge steepness. Unlike most of the standard methods, which work exclusively with image magnitude, we also examined the influence of image phase, i.e. the image is processed as a complex signal. In addition to the interpretation of results, a short summary is given that deals with the choice of the optimal mother wavelet and thresholding technique for different types of MR images.

Klíčová slova

de-noising, Wavelet,analyze, MRI

Autoři

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

Rok RIV

2011

Vydáno

7. 11. 2011

Nakladatel

Elsevier

Místo

Ireland

ISSN

0169-2607

Periodikum

COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE

Ročník

104

Číslo

3

Stát

Nizozemsko

Strany od

480

Strany do

488

Strany počet

8

BibTex

@article{BUT74456,
  author="Karel {Bartušek} and Jiří {Přinosil} and Zdeněk {Smékal}",
  title="Wavelet-based de-noising techniques in MRI",
  journal="COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE",
  year="2011",
  volume="104",
  number="3",
  pages="480--488",
  issn="0169-2607"
}