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Criteria for Wavelet Selection in MR Image Filtering
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SYSNO ASEP 0352240 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Criteria for Wavelet Selection in MR Image Filtering Author(s) Gescheidtová, E. (CZ)
Bartušek, Karel (UPT-D) RID, ORCID, SAINumber of authors 2 Source Title PIERS 2010 Xi'an Proceedings. - Cambridge : The Electromagnetics Academy, 2010 - ISBN 978-1-934142-12-7 Pages s. 1569-1572 Number of pages 4 s. Action PIERS 2010 Xi'an Event date 22.03.2010-26.03.2010 VEvent location Xi'an Country CN - China Event type WRD Language eng - English Country US - United States Keywords MR image ; wavelet Subject RIV JA - Electronics ; Optoelectronics, Electrical Engineering R&D Projects GA102/07/0389 GA ČR - Czech Science Foundation (CSF) GA102/07/1086 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20650511 - UPT-D (2005-2011) Annotation Magnetic resonance is made use of in particular as a diagnostic imaging method. To be able to reliably establish a diagnosis, the doctors must have at their disposal images of selected parts of human organs that are of su±cient quality, with no details missing. The detected images are frequently of very low contrast and resolution. Similar to MR signals, the images are degraded by noise, the level of which depends, among other things, on the level of the signal being detected, local proton density, voxel size, bandwidth, system design, quality of the RF coil, and the detection parameters. The introduction of wavelet transform provided an e±cient tool for processing not only MR signals but also MR images. For a successful processing of images it is important to select from the many currently used types of wavelet. An inappropriate choice of the wavelet can lead to the loss of important information contained in the image or, on the contrary, Filtering can be less eficient. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2011
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