MRI imaging with noise filtering in wavelet space

Details MRI imaging with noise filtering in wavelet space MRI imaging with noise filtering in wavelet space

1998-07-14

2000-07-25

Oda, Christine K.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, 600437, 600453, G01V 300

Patent

active

060940506

ABSTRACT:
A method of imaging of an object. A plurality of image datasets, for example a real part and an imaginary part of a magnetic resonance image, are acquired, and are transformed separately to a transform space and filtered. The filtered datasets are inverse transformed and recombined nonlinearly to produce the final image. The preferred transformation is a wavelet transformation. Noisy transform coefficients are suppressed by thresholding.

REFERENCES:
patent: 5167232 (1992-12-01), Parker et al.
patent: 5841890 (1998-11-01), Kraske
Hilton et al, "Wavelet Denoising of Functional MRI Data", appeared in "Waet Applications in Biology and Medicine", Aldroubi & Unser, Eds., CRC Press, 1996.

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