Proceedings of the Korea Institute of Convergence Signal Processing (융합신호처리학회 학술대회논문집)

The Korea Institute of Convergence Signal Processing (한국융합신호처리학회)
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Cancellation of MRI Motion Artifact in Image Plane

촬영단면내의 MRI 체동 아티팩트의 제거

  • Kim, Eung-Kyeu (School of Information Communication and Computer Engineering, Taejon National University of Technology)
  • Published : 2000.08.01
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Abstract

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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