Denoising of MR tomography signal with automatic adjustment of time-variant thresholds

被引：1

作者：

Kubasek, Radek ^{[1
]}

Gescheidtova, Eva ^{[1
]}

机构：

[1] Brno Univ Technol, Fac Elect Engn & Commun, Brno 61200, Czech Republic

来源：

2005 27TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-7 | 2005年

关键词：

D O I：

10.1109/IEMBS.2005.1617017

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

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.

引用

页码：2660 / 2663

页数：4

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