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Symmetric Positive-Definite Cartesian Tensor Orientation Distribution Functions (CT-ODF)
[chapter]
2010
Lecture Notes in Computer Science
A novel method for estimating a field of orientation distribution functions (ODF) from a given set of DW-MR images is presented. We model the ODF by Cartesian tensor basis using a parametrization that explicitly enforces the positive definite property to the computed ODF. The computed Cartesian tensors, dubbed Cartesian Tensor-ODF (CT-ODF), are symmetric positive definite tensors whose coefficients can be efficiently estimated by solving a linear system with non-negative constraints.
doi:10.1007/978-3-642-15705-9_71
fatcat:llbampkezzfcnavrw7g5op66cq