Title :
On the design of the bandpass filters in harmonic phase MRI
Author :
Osman, Nael F. ; Prince, Jerry L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Johns Hopkins Univ., Baltimore, MD, USA
Abstract :
In this paper we improve the extraction of harmonic images from tagged MR images of the heart. Using simulations, we study the shapes of the spectra of harmonic images and their relation to the heart motion. The filters used to extract the harmonic images are designed based on the shape of the spectra and tuned using simulations. The design also considers additive noise and interference from other harmonic images
Keywords :
band-pass filters; biomechanics; biomedical MRI; cardiology; harmonic analysis; medical image processing; muscle; additive noise; bandpass filters; extraction; harmonic images; harmonic phase MRI; heart; heart motion; interference; spectra; tagged MR images; Additive noise; Band pass filters; Computational modeling; Electronic mail; Fourier transforms; Heart; Magnetic resonance imaging; Power harmonic filters; Shape; Tagging;
Conference_Titel :
Image Processing, 2000. Proceedings. 2000 International Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-6297-7
DOI :
10.1109/ICIP.2000.901036
