Detail publikace

Signal denoising in MR tomography using wavelet

Originální název

Signal denoising in MR tomography using wavelet

Anglický název

Signal denoising in MR tomography using wavelet

Jazyk

en

Originální abstrakt

The wavelet transformation is the modern method for signal processing in many technical branches. One of them is the removal of noise from a useful signal. This article is focused on removing noise from the signal scanned in a nuclear magnetic resonance tomograph. The method of sub-band thresholding utilizing wavelet transformation is analysed. This method is applied in dual filtering of Free Induction Decay (FID) signal and Instantaneous Frequency (IF) signal. Marked noise suppression is reached, a higher quality of instantaneous frequency signal is obtained and so the magnetic field in tomograph can be measured to a greater accuracy.

Anglický abstrakt

The wavelet transformation is the modern method for signal processing in many technical branches. One of them is the removal of noise from a useful signal. This article is focused on removing noise from the signal scanned in a nuclear magnetic resonance tomograph. The method of sub-band thresholding utilizing wavelet transformation is analysed. This method is applied in dual filtering of Free Induction Decay (FID) signal and Instantaneous Frequency (IF) signal. Marked noise suppression is reached, a higher quality of instantaneous frequency signal is obtained and so the magnetic field in tomograph can be measured to a greater accuracy.

BibTex


@inproceedings{BUT13248,
  author="Eva {Gescheidtová} and Karel {Bartušek} and Radek {Kubásek}",
  title="Signal denoising in MR tomography using wavelet",
  annote="The wavelet transformation is the modern method for signal processing in many technical branches. One of them is the removal of noise from a useful signal. This article is focused on removing noise from the signal scanned in a nuclear magnetic resonance tomograph. The method of sub-band thresholding utilizing wavelet transformation is analysed. This method is applied in dual filtering of Free Induction Decay (FID) signal and Instantaneous Frequency (IF) signal. Marked noise suppression is reached, a higher quality of instantaneous frequency signal is obtained and so the magnetic field in tomograph can be measured to a greater accuracy.",
  address="University of Pisa",
  booktitle="Progress in Electromagnetics Research Symposium",
  chapter="13248",
  institution="University of Pisa",
  year="2004",
  month="march",
  pages="1",
  publisher="University of Pisa",
  type="conference paper"
}