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  • Title: Registration-based interpolation.
    Author: Penney GP, Schnabel JA, Rueckert D, Viergever MA, Niessen WJ.
    Journal: IEEE Trans Med Imaging; 2004 Jul; 23(7):922-6. PubMed ID: 15250644.
    Abstract:
    A method is presented to interpolate between neighboring slices in a grey-scale tomographic data set. Spatial correspondence between adjacent slices is established using a nonrigid registration algorithm based on B-splines which optimizes the normalized mutual information similarity measure. Linear interpolation of the image intensities is then carried out along the directions calculated by the registration algorithm. The registration-based method is compared to both standard linear interpolation and shape-based interpolation in 20 tomographic data sets. Results show that the proposed method statistically significantly outperforms both linear and shape-based interpolation.
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