Title :
Wavelet-based Rayleigh background removal in MRI
Author :
Wu, Z.Q. ; Ware, J.A. ; Jiang, J.
Author_Institution :
Sch. of Comput., Univ. of Glamorgan, Pontypridd, UK
fDate :
4/3/2003 12:00:00 AM
Abstract :
Rayleigh distribution governs noise in ´no signal´ regions of magnetic resonance magnitude images. Large areas of background noise in MRI images will seriously affect their effective utilisation. A new wavelet-based algorithm is presented that can work efficiently either as a standalone procedure or couple with existing denoising algorithms to significantly improve their effectiveness.
Keywords :
biomedical MRI; discrete wavelet transforms; image denoising; medical image processing; random noise; MRI; Rayleigh distribution; background noise; denoising algorithms; discrete wavelet transform; magnetic resonance magnitude images; no signal regions; standalone procedure; two-dimensional DWT; wavelet-based Rayleigh background removal;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030396
