Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)
- Volume 1997 Issue 05
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- Pages.230-234
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- 1997
Magnetic Resonance Imaging Using Matching Pursuit
Matching Pursuit 방법을 이용한 MR영상법에 관한 연구
- Ro, Y.M. (Department of Computer Engineering, Taejon University) ;
- Zakhora, Avideh (Department of Electrical Engineering and Computer Sciences, University of California at Berkeley)
- 노용만 (대전대학교 공과대학 컴퓨터공학과) ;
- Published : 1997.05.23
Abstract
The matching pursuit (MP) algorithm developed by S. Mallat and Z. Zhang is applied to magnetic resonance (MR) imaging. Since matching pursuit is a greedy algorithm to find waveforms which are the best match for an object-signal, the signal can be decomposed with a few iterations. In this paper, we propose an application of the MP algorithm to the MR imaging to reduce imaging time. Inner products of residual signals and selected waveforms in the MP algorithm are derived from the MR signals by excitation of RF pulses which are fourier transforms of selected waveforms. Results from computer simulations demonstrate that the imaging time is reduced by using the MP algorithm and further a progressive reconstruction can be achieved.
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