1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
/*=========================================================================
*
* Copyright Insight Software Consortium
*
* 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
*
* http://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 itkDemonsImageToImageMetricv4_hxx
#define itkDemonsImageToImageMetricv4_hxx
#include "itkDemonsImageToImageMetricv4.h"
namespace itk
{
template < typename TFixedImage, typename TMovingImage, typename TVirtualImage, typename TInternalComputationValueType, typename TMetricTraits >
DemonsImageToImageMetricv4<TFixedImage,TMovingImage,TVirtualImage, TInternalComputationValueType, TMetricTraits>
::DemonsImageToImageMetricv4()
{
// We have our own GetValueAndDerivativeThreader's that we want
// ImageToImageMetricv4 to use.
this->m_DenseGetValueAndDerivativeThreader = DemonsDenseGetValueAndDerivativeThreaderType::New();
this->m_SparseGetValueAndDerivativeThreader = DemonsSparseGetValueAndDerivativeThreaderType::New();
// Unlike most other metrics, this defaults to using fixed image gradients
this->SetGradientSource( this->GRADIENT_SOURCE_FIXED );
this->m_Normalizer = NumericTraits<TInternalComputationValueType>::OneValue();
this->m_DenominatorThreshold = static_cast<TInternalComputationValueType>(1e-9);
this->m_IntensityDifferenceThreshold = static_cast<TInternalComputationValueType>(0.001);
}
template < typename TFixedImage, typename TMovingImage, typename TVirtualImage, typename TInternalComputationValueType, typename TMetricTraits >
DemonsImageToImageMetricv4<TFixedImage,TMovingImage,TVirtualImage, TInternalComputationValueType, TMetricTraits>
::~DemonsImageToImageMetricv4()
{
}
template < typename TFixedImage, typename TMovingImage, typename TVirtualImage, typename TInternalComputationValueType, typename TMetricTraits >
void
DemonsImageToImageMetricv4<TFixedImage,TMovingImage,TVirtualImage, TInternalComputationValueType, TMetricTraits>
::Initialize(void)
{
// Make sure user has not set to use both moving and fixed image
// gradients
if( this->GetGradientSource() == this->GRADIENT_SOURCE_BOTH )
{
itkExceptionMacro("GradientSource has been set to GRADIENT_SOURCE_BOTH. "
"You must choose either GRADIENT_SOURCE_MOVING or "
"GRADIENT_SOURCE_FIXED." );
}
// Verify that the transform has local support, and its number of local
// parameters equals the dimensionality of the image gradient source.
if( this->m_MovingTransform->GetTransformCategory() != MovingTransformType::DisplacementField )
{
itkExceptionMacro( "The moving transform must be a displacement field transform" );
}
// compute the normalizer
ImageDimensionType dimension;
typename TFixedImage::SpacingType imageSpacing;
if( this->GetGradientSource() == this->GRADIENT_SOURCE_FIXED )
{
imageSpacing = this->m_FixedImage->GetSpacing();
dimension = FixedImageDimension;
}
else
{
imageSpacing = this->m_MovingImage->GetSpacing();
dimension = MovingImageDimension;
}
this->m_Normalizer = NumericTraits<TInternalComputationValueType>::ZeroValue();
for ( ImageDimensionType k = 0; k < dimension; k++ )
{
this->m_Normalizer += imageSpacing[k] * imageSpacing[k];
}
this->m_Normalizer /= static_cast<TInternalComputationValueType>( dimension );
Superclass::Initialize();
}
template < typename TFixedImage, typename TMovingImage, typename TVirtualImage, typename TInternalComputationValueType, typename TMetricTraits >
void
DemonsImageToImageMetricv4<TFixedImage,TMovingImage,TVirtualImage, TInternalComputationValueType, TMetricTraits>
::PrintSelf(std::ostream& os, Indent indent) const
{
Superclass::PrintSelf(os, indent);
os << indent << "IntensityDifferenceThreshold: "
<< this->GetIntensityDifferenceThreshold() << std::endl
<< indent << "DenominatorThreshold: " << this->GetDenominatorThreshold()
<< std::endl
<< indent << "Normalizer: " << this->GetNormalizer() << std::endl;
}
} // end namespace itk
#endif
|
