A method is presented for interpolation between neighbouring slices in a grey-scale tomographic data set, when a high-resolution image of the same patient is also available. Spatial correspondence between adjacent slices in the high-resolution image are established using a voxel-based non-rigid registration algorithm. These spatial correspondences are used to calculate a set of vectors, which are transferred from the high-resolution image to the lower resolution image by rigidly registering the image volumes together. Linear interpolation is then carried out along these vector directions between neighbouring slices in the low-resolution image. This method has been compared to standard linear interpolation, shape-based interpolation and registration-based interpolation in MR head volumes. Results using a mean square difference error measure show that the proposed method outperforms the other three interpolation techniques. © Springer-Verlag Berlin Heidelberg 2004.
CITATION STYLE
Penney, G. P., Schnabel, J. A., Rueckert, D., Hawkes, D. J., & Niessen, W. J. (2004). Registration-based interpolation using a high-resolution image for guidance. In Lecture Notes in Computer Science (Vol. 3216, pp. 558–565). Springer Verlag. https://doi.org/10.1007/978-3-540-30135-6_68
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