TensorTransformAdapter

MacroModule

author	Jan Klein
package	FMEwork/Release
definition	TensorTransformAdapter.def
see also	TensorTransform
keywords	DTI, tensor, transformation, gradients, registration, world, coordinates

Purpose

The module this takes a vector or tensor field and rotates the tensors depending on which coordinate frame is used for storing the gradient scheme and depending on the situation whether a registration has already modified the world matrix of the input image.

Windows

Default Panel

Input Fields

input0

name: input0, type: Image

Vector or tensor field stored in the u-dimension.

Output Fields

output0

name: output0, type: Image

Vector or tensor field stored in the u-dimension where the vectors/tensors are rotated as specified.

Parameter Fields

Visible Fields

Scanner Software Version

name: scannerSoftwareVersion, type: String, persistent: no

Shows the name of the scanner software.

If using Siemens data, the software version VB15 or higher indicates that the gradient scheme is stored in world coordinates.

World Matrix Before Registration

name: worldMatrixBeforeRegistration, type: Matrix, default: 0 0 0 0, 0 0 0 0, 0 0 0 0, 0 0 0 0

Sets a world matrix before the registration.

This matrix must be set a registration has modified the world matrix AND if the gradients are stored in world coordinates.

Gradients Coordinate Frame

name: gradientsCoordinateFrame, type: Enum, default: world

Defines in which reference frame the gradients are stored in.

Values:

Title	Name
​world coordinates	​world
​voxel coordinates	​voxel

Registration

name: registration, type: Enum, default: noRegistration

Defines whether a registration has already modified the world matrix.

Values:

Title	Name
​registration not applied	​noRegistration
​registration already applied	​rigidRegistration