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
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
/*=========================================================================
*
* 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 itkLevelSetEquationOverlapPenaltyTerm_h
#define itkLevelSetEquationOverlapPenaltyTerm_h
#include "itkLevelSetEquationTermBase.h"
#include "itkCompensatedSummation.h"
namespace itk
{
/**
* \class LevelSetEquationOverlapPenaltyTerm
* \brief Class to represent the overlap penalty among many level-sets
*
* \f[
* \sum_{i \neq j } \left(H_{\epsilon}\left(\phi_j \left( p \right) \right)\right)
* \f]
*
* \li \f$ i \f$ is the current level-set id,
* \li \f$ j \f$ is any level-set id,
* \li \f$ p \f$ is the given location,
* \li \f$ H_{\epsilon} \f$ is regularized Heaviside function.
*
* \tparam TInput Input Image Type
* \tparam TLevelSetContainer Level set function container type
*
* \ingroup ITKLevelSetsv4
*/
template <typename TInput, // Input image or mesh
typename TLevelSetContainer>
class ITK_TEMPLATE_EXPORT LevelSetEquationOverlapPenaltyTerm
: public LevelSetEquationTermBase<TInput, TLevelSetContainer>
{
public:
ITK_DISALLOW_COPY_AND_MOVE(LevelSetEquationOverlapPenaltyTerm);
using Self = LevelSetEquationOverlapPenaltyTerm;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
using Superclass = LevelSetEquationTermBase<TInput, TLevelSetContainer>;
/** Method for creation through object factory */
itkNewMacro(Self);
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(LevelSetEquationOverlapPenaltyTerm);
using typename Superclass::InputImageType;
using typename Superclass::InputImagePointer;
using typename Superclass::InputPixelType;
using typename Superclass::InputPixelRealType;
using typename Superclass::LevelSetContainerType;
using typename Superclass::LevelSetContainerPointer;
using typename Superclass::LevelSetType;
using typename Superclass::LevelSetPointer;
using typename Superclass::LevelSetOutputPixelType;
using typename Superclass::LevelSetOutputRealType;
using typename Superclass::LevelSetInputIndexType;
using typename Superclass::LevelSetGradientType;
using typename Superclass::LevelSetHessianType;
using typename Superclass::LevelSetIdentifierType;
using typename Superclass::HeavisideType;
using typename Superclass::HeavisideConstPointer;
using typename Superclass::LevelSetDataType;
using typename Superclass::DomainMapImageFilterType;
using typename Superclass::CacheImageType;
using IdListType = typename LevelSetContainerType::IdListType;
using IdListIterator = typename LevelSetContainerType::IdListIterator;
using IdListConstIterator = typename LevelSetContainerType::IdListConstIterator;
using CompensatedSummationType = CompensatedSummation<LevelSetOutputRealType>;
/** Update the term parameter values at end of iteration */
void
Update() override;
/** Initialize parameters in the terms prior to an iteration */
void
InitializeParameters() override;
/** Initialize term parameters in the dense case by computing for each pixel location */
void
Initialize(const LevelSetInputIndexType & index) override;
/** Compute the sum of Heaviside functions in the multi-levelset cases
* except the current levelset */
virtual void
ComputeSumTerm(const LevelSetInputIndexType & index, LevelSetOutputRealType & sum);
/** Supply updates at pixels to keep the term parameters always updated */
void
UpdatePixel(const LevelSetInputIndexType & index,
const LevelSetOutputRealType & oldValue,
const LevelSetOutputRealType & newValue) override;
protected:
LevelSetEquationOverlapPenaltyTerm();
~LevelSetEquationOverlapPenaltyTerm() override = default;
/** Returns the term contribution for a given location index */
LevelSetOutputRealType
Value(const LevelSetInputIndexType & index) override;
/** Returns the term contribution for a given location index */
LevelSetOutputRealType
Value(const LevelSetInputIndexType & index, const LevelSetDataType & data) override;
private:
DomainMapImageFilterType * m_DomainMapImageFilter{};
CacheImageType * m_CacheImage{};
};
} // namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkLevelSetEquationOverlapPenaltyTerm.hxx"
#endif
#endif
|
