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dti (version 0.8-1)

dtiTensor-methods: Methods for Function `dtiTensor' in Package `dti'

Description

The method estimates, in each voxel, the diffusion tensor from the DWI data contained in an object of class "dtiData".

Usage

## S3 method for class 'dtiData':
dtiTensor(object, method="nonlinear", varmethod="replicates", varmodel="local")

Arguments

object
Object of class "dtiData"
method
Method for tensor estimation. May be "linear", or "nonlinear".
varmethod
Specifies the method for estimating the error variance. May be "replicates".
varmodel
Specifies the model for the variance. May be "global", or "local".

Value

  • An object of class "dtiTensor".

References

K. Tabelow, J. Polzehl, H.U. Voss, and V. Spokoiny. Diffusion Tensor Imaging: Structural adaptive smoothing, NeuroImage 39(4), 1763-1773 (2008).

C.G. Koay, J.D. Carew, A.L. Alexander, P.J. Basser and M.E. Meyerand. Investigation of Anomalous Estimates of Tensor-Derived Quantities in Diffusion Tensor Imaging, Magnetic Resonance in medicine, 2006, 55, 930-936.

http://www.wias-berlin.de/projects/matheon_a3/

See Also

dtiData, readDWIdata, dtiIndices-methods, medinria, dtiData, dtiTensor

Examples

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demo(dti_art)

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