DocumentCode
1616403
Title
Denoising of MR Tomography Signal with Automatic Adjustment of Time-Variant Thresholds
Author
Kubasek, Radek ; Gescheidtova, Eva
Author_Institution
Fac. of Electr. Eng. & Commun., Brno Univ. of Tech.
fYear
2006
Firstpage
2660
Lastpage
2663
Abstract
Removing noise from an free induction decay (FID) signal is of fundamental significance in the analysis of results of magnetic resonance (MR) spectroscopy and tomography. Optimum solution can be seen in removing noise by means of a digital filter bank that uses half-band mirror frequency filters of the type of low-pass and high-pass filters. A filtering method using digital filters and the approach threshold adjustment is described in the paper
Keywords
biomedical MRI; digital filters; high-pass filters; image denoising; low-pass filters; medical image processing; MR tomography signal denoising; automatic time-variant threshold adjustment; digital filter bank; free induction decay signal; half-band mirror frequency filters; high-pass filters; low-pass filters; magnetic resonance spectroscopy; Digital filters; Filter bank; Magnetic analysis; Magnetic noise; Magnetic resonance; Magnetic separation; Noise reduction; Signal analysis; Spectroscopy; Tomography;
fLanguage
English
Publisher
ieee
Conference_Titel
Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
Conference_Location
Shanghai
Print_ISBN
0-7803-8741-4
Type
conf
DOI
10.1109/IEMBS.2005.1617017
Filename
1617017
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