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Medical-image Analysis and Statistical Interpretation Lab

‘Interpolation’

Interpolation of the genu of the Corpus Callosum (CC) and longitudinal fasciculus (LF) near the lateral ventricle (V): region of interest (ROI) selected on an orientation color coded anisotropy map (A,B). MD (C) and log-determinant (D) are shown at the reconstructed resolution. Upsampled (4 × 4) and interpolated contrasts are shown for linear (E-G), Log-Euclidean (H-J), and CLEAR (K-M) tensor interpolation. While the linear interpolation has smooth FA and MD (E,F), it exhibits abrupt changes in the determinant (G). The Log-Euclidean interpolation exhibits FA artifacts in regions of high anisotropy and curvature (H). CLEAR avoids all these problems

Tensor Interpolation by Concise Local Estimation of Anisotropy and Rotation

Sep. 1, 2008—A. Landman, P-L. Bazin, and J. L. Prince. “Tensor Interpolation by Concise Local Estimation of Anisotropy and Rotation”, In Proceedings of the Workshop on Computational Diffusion MRI at the 11th International Conference on Medical Image Computing and Computer Assisted Intervention, New York, NY, September 2008. Full Text:http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.701.4262&rep=rep1&type=pdf#page=265 Abstract In diffusion tensor imaging, tensors represent the...

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