Medical Imaging Interaction Toolkit  2022.04.99-b2814023 Medical Imaging Interaction Toolkit
mitk::StaticIGTHelperFunctions Class Reference

#include <mitkStaticIGTHelperFunctions.h>

## Static Public Member Functions

static double GetAngleBetweenTwoQuaterions (mitk::Quaternion a, mitk::Quaternion b, itk::Vector< double, 3 > rotationVector)

static double GetAngleBetweenTwoQuaterions (mitk::Quaternion a, mitk::Quaternion b)

static itk::Matrix< double, 3, 3 > ConvertEulerAnglesToRotationMatrix (double alpha, double beta, double gamma)

static double ComputeFRE (mitk::PointSet::Pointer imageFiducials, mitk::PointSet::Pointer realWorldFiducials, vtkSmartPointer< vtkLandmarkTransform > transform=nullptr)
Computes the fiducial registration error out of two sets of fiducials. The two sets must have the same size and the points must correspond to each other. More...

## Detailed Description

Definition at line 21 of file mitkStaticIGTHelperFunctions.h.

## ◆ ComputeFRE()

 static double mitk::StaticIGTHelperFunctions::ComputeFRE ( mitk::PointSet::Pointer imageFiducials, mitk::PointSet::Pointer realWorldFiducials, vtkSmartPointer< vtkLandmarkTransform > transform = nullptr )
static

Computes the fiducial registration error out of two sets of fiducials. The two sets must have the same size and the points must correspond to each other.

Parameters
 imageFiducials realWorldFiducials transform This transform is applied to the image fiducials before the FRE calculation if it is given.
Returns
Returns the FRE. Returns -1 if there was an error.

## ◆ ConvertEulerAnglesToRotationMatrix()

 static itk::Matrix mitk::StaticIGTHelperFunctions::ConvertEulerAnglesToRotationMatrix ( double alpha, double beta, double gamma )
static

Converts euler angles (in degrees) to a rotation matrix.

## ◆ GetAngleBetweenTwoQuaterions() [1/2]

 static double mitk::StaticIGTHelperFunctions::GetAngleBetweenTwoQuaterions ( mitk::Quaternion a, mitk::Quaternion b, itk::Vector< double, 3 > rotationVector )
static

Computes the angle in the plane perpendicular to the rotation axis of the two quaterions. Therefore, a vector is rotated with the difference of both rotations and the angle is computed. In some cases you might want to define this vector e.g., if working with 5D tools. For NDI Aurora 5D tools you need to defined this vector along the Z-axis.

Returns
Returns the angle in degrees.

## ◆ GetAngleBetweenTwoQuaterions() [2/2]

 static double mitk::StaticIGTHelperFunctions::GetAngleBetweenTwoQuaterions ( mitk::Quaternion a, mitk::Quaternion b )
static

Computes difference between two quaternions in degree, which is the minimum rotation angle between these two quaternions. The used formula is described here: https://fgiesen.wordpress.com/2013/01/07/small-note-on-quaternion-distance-metrics/

Returns
Returns the angle in degrees.

The documentation for this class was generated from the following file: