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TMI
2008

Motion Compensated Fan-Beam Reconstruction for Nonrigid Transformation

13 years 10 months ago
Motion Compensated Fan-Beam Reconstruction for Nonrigid Transformation
We develop an approximate fan-beam algorithm to reconstruct an object with time-dependent nonrigid transformation such as the heart. The method is in the form of derivative backprojection filtering with compensation of affine transformations on a local basis. Computer simulations showed the proposed method significantly reduces image artifact due to nonrigid motion. Therefore, with very little motion artifact, the proposed method allowed us to reconstruct images from projections over about one motion cycle, resulting in reduced image noise level down to 40% of the current level.
Katsuyuki Taguchi, Hiroyuki Kudo
Added 28 Jan 2011
Updated 28 Jan 2011
Type Journal
Year 2008
Where TMI
Authors Katsuyuki Taguchi, Hiroyuki Kudo
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