융합신호처리학회 학술대회논문집 (Proceedings of the Korea Institute of Convergence Signal Processing)
- 한국신호처리시스템학회 2000년도 하계종합학술대회논문집
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- Pages.309-312
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- 2000
촬영단면내의 MRI 체동 아티팩트의 제거
Cancellation of MRI Motion Artifact in Image Plane
- Kim, Eung-Kyeu (School of Information Communication and Computer Engineering, Taejon National University of Technology)
- 발행 : 2000.08.01
초록
In this work, a new algorithm for canceling MRI artifact due to translational motion in image plane is described. In the previous approach, the motions in the x direction and the y direction are estimated simultaneously. By analyzing their features, each x and y directional motion is canceled by different algorithms in two steps. First, it is noticed that the x directional motion corresponds to a shift of the x directional spectrum of the MRI signal. Next, the y directional motion is canceled by using a new constraint condition. This algorithm is shown to be effective by using a phantom image with simulated motion.
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