RNiftyReg (version 2.0.0)

deformationField: Calculate the deformation field for a transformation

Description

This function is used to calculate the deformation field corresponding to a specified linear or nonlinear transformation. The deformation field gives the location in source image space corresponding to the centre of each voxel in target space. It is used as a common form for linear and nonlinear transformations, and allows them to be visualised.

Usage

deformationField(transform, jacobian = TRUE)

Arguments

transform

A transform, possibly obtained from forward or reverse.

jacobian

A logical value: if TRUE, a Jacobian determinant map is also calculated and returned in an attribute.

Value

• An "internalImage" representing the deformation field. If requested, the Jacobian map is stored in an attribute, which can be extracted using the jacobian accessor function.

See Also

niftyreg.linear, niftyreg.nonlinear