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- W2045882912 abstract "Nonlinear image registration is an initial step for a large number of medical image analysis applications. Optical flow based intensity registration is often used for dealing with intra-modality applications involving motion differences. In this work we present an energy functional which uses a novel, second-order regularization prior of the displacement field. Compared to other methods our scheme is robust to non-Gaussian noise and does not penalize locally affine deformation fields in homogeneous areas. We propose an efficient and stable numerical scheme to find the minimizer of the presented energy. We implemented our algorithm using modern consumer graphics processing units and thereby increased the execution performance dramatically. We further show experimental evaluations on clinical CT thorax data sets at different breathing states and on dynamic 4D CT cardiac data sets." @default.
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- W2045882912 date "2010-03-04" @default.
- W2045882912 modified "2023-09-23" @default.
- W2045882912 title "Optical flow based deformable volume registration using a novel second-order regularization prior" @default.
- W2045882912 cites W2057773996 @default.
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- W2045882912 doi "https://doi.org/10.1117/12.844549" @default.
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