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/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkScaleVersor3DTransform_h
#define itkScaleVersor3DTransform_h
#include "itkVersorRigid3DTransform.h"
namespace itk
{
/** \class ScaleVersor3DTransform
*
* \brief This transform applies a Versor rotation, translation and
* anisotropic scale to the space.
*
* The transform can be described as:
* \f$ (\textbf{R}_v + \textbf{S})\textbf{x} \f$ where \f$\textbf{R}_v\f$ is the
* rotation matrix given the versor, and
* \f$S=\left( \begin{array}{ccc}s_0-1 & 0 & 0 \\ 0 & s_1-1 & 0 \\ 0 & 0 & s_2-1 \end{array} \right)\ \f$
*
*
* \note This transform's scale parameters are not related to the
* uniform scaling parameter of the Similarity3DTransform.
*
* \author Johnson H.J., Harris G., Williams K. University of Iowa Carver
* College of Medicine, Department of Psychiatry NeuroImaging Center
*
* This implementation was taken from the Insight Journal paper:
* https://www.insight-journal.org/browse/publication/180
*
* \ingroup ITKTransform
*/
template <typename TParametersValueType = double>
class ITK_TEMPLATE_EXPORT ScaleVersor3DTransform : public VersorRigid3DTransform<TParametersValueType>
{
public:
ITK_DISALLOW_COPY_AND_MOVE(ScaleVersor3DTransform);
/** Standard class type aliases. */
using Self = ScaleVersor3DTransform;
using Superclass = VersorRigid3DTransform<TParametersValueType>;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
/** New macro for creation of through a Smart Pointer. */
itkNewMacro(Self);
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(ScaleVersor3DTransform);
/** Dimension of parameters. */
static constexpr unsigned int InputSpaceDimension = 3;
static constexpr unsigned int OutputSpaceDimension = 3;
static constexpr unsigned int ParametersDimension = 9;
/** Parameters Type */
using typename Superclass::ParametersType;
using typename Superclass::FixedParametersType;
using typename Superclass::JacobianType;
using typename Superclass::JacobianPositionType;
using typename Superclass::InverseJacobianPositionType;
using typename Superclass::ScalarType;
using typename Superclass::InputPointType;
using typename Superclass::OutputPointType;
using typename Superclass::InputVectorType;
using typename Superclass::OutputVectorType;
using typename Superclass::InputVnlVectorType;
using typename Superclass::OutputVnlVectorType;
using typename Superclass::InputCovariantVectorType;
using typename Superclass::OutputCovariantVectorType;
using typename Superclass::MatrixType;
using typename Superclass::InverseMatrixType;
using typename Superclass::CenterType;
using typename Superclass::OffsetType;
using typename Superclass::TranslationType;
using typename Superclass::VersorType;
using typename Superclass::AxisType;
using typename Superclass::AngleType;
/** Scale Vector Type. */
using ScaleVectorType = Vector<TParametersValueType, 3>;
/** Directly set the matrix of the transform.
*
* Orthogonality testing is bypassed in this case.
*
* \sa MatrixOffsetTransformBase::SetMatrix() */
void
SetMatrix(const MatrixType & matrix) override;
void
SetMatrix(const MatrixType & matrix, const TParametersValueType tolerance) override;
/** Set the transformation from a container of parameters
* This is typically used by optimizers.
* There are 9 parameters:
* 0-2 versor
* 3-5 translation
* 6-8 Scale
** */
void
SetParameters(const ParametersType & parameters) override;
const ParametersType &
GetParameters() const override;
/** Set/Get the scale vector. These scale factors are associated to the axis
* of coordinates. */
void
SetScale(const ScaleVectorType & scale);
itkGetConstReferenceMacro(Scale, ScaleVectorType);
/** Set the internal parameters of the transform in order to represent an
* Identity transform. */
void
SetIdentity() override;
/** This method computes the Jacobian matrix of the transformation.
* given point or vector, returning the transformed point or
* vector. The rank of the Jacobian will also indicate if the
* transform is invertible at this point. */
void
ComputeJacobianWithRespectToParameters(const InputPointType & p, JacobianType & jacobian) const override;
protected:
ScaleVersor3DTransform();
ScaleVersor3DTransform(const MatrixType & matrix, const OutputVectorType & offset);
ScaleVersor3DTransform(unsigned int parametersDimension);
~ScaleVersor3DTransform() override = default;
void
PrintSelf(std::ostream & os, Indent indent) const override;
void
SetVarScale(const ScaleVectorType & scale)
{
m_Scale = scale;
}
/** Compute the components of the rotation matrix in the superclass. */
void
ComputeMatrix() override;
void
ComputeMatrixParameters() override;
private:
/** Vector containing the scale. */
ScaleVectorType m_Scale{};
}; // class ScaleVersor3DTransform
} // namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkScaleVersor3DTransform.hxx"
#endif
#endif /* __ScaleVersor3DTransform_h */
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