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
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/*=========================================================================
*
* 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.
*
*=========================================================================*/
#include "itkLabeledPointSetToPointSetMetricv4.h"
#include "itkTranslationTransform.h"
#include <fstream>
#include "itkMath.h"
template<unsigned int Dimension>
int itkLabeledPointSetMetricTestRun()
{
typedef unsigned int LabelType;
typedef itk::PointSet<LabelType, Dimension> PointSetType;
typedef typename PointSetType::PointType PointType;
typename PointSetType::Pointer fixedPoints = PointSetType::New();
fixedPoints->Initialize();
typename PointSetType::Pointer movingPoints = PointSetType::New();
movingPoints->Initialize();
// Produce two simple point sets of 1) a circle and 2) the same circle with an offset;
PointType offset;
for( unsigned int d=0; d < Dimension; d++ )
{
offset[d] = 1.1 + d;
}
unsigned long count = 0;
float pointSetRadius = 100.0;
for( float theta = 0; theta < 2.0 * itk::Math::pi; theta += 0.1 )
{
LabelType label = 1;
if( theta > itk::Math::pi )
{
label = 2;
}
PointType fixedPoint;
fixedPoint[0] = pointSetRadius * std::cos( theta );
fixedPoint[1] = pointSetRadius * std::sin( theta );
if( Dimension > 2 )
{
fixedPoint[2] = pointSetRadius * std::sin( theta );
}
fixedPoints->SetPoint( count, fixedPoint );
fixedPoints->SetPointData( count, label );
PointType movingPoint;
movingPoint[0] = fixedPoint[0] + offset[0];
movingPoint[1] = fixedPoint[1] + offset[1];
if( Dimension > 2 )
{
movingPoint[2] = fixedPoint[2] + offset[2];
}
movingPoints->SetPoint( count, movingPoint );
movingPoints->SetPointData( count, label );
count++;
}
//
// Simple translation transform for moving point set
//
typedef itk::TranslationTransform<double, Dimension> TranslationTransformType;
typename TranslationTransformType::Pointer translationTransform = TranslationTransformType::New();
translationTransform->SetIdentity();
// Instantiate the metric
typedef itk::LabeledPointSetToPointSetMetricv4<PointSetType> PointSetMetricType;
typename PointSetMetricType::Pointer metric = PointSetMetricType::New();
metric->SetFixedPointSet( fixedPoints );
metric->SetMovingPointSet( movingPoints );
metric->SetMovingTransform( translationTransform );
metric->Initialize();
typename PointSetMetricType::MeasureType value = metric->GetValue(), value2;
typename PointSetMetricType::DerivativeType derivative, derivative2;
metric->GetDerivative( derivative );
metric->GetValueAndDerivative( value2, derivative2 );
std::cout << "value: " << value << std::endl;
std::cout << "derivative: " << derivative << std::endl;
for( unsigned int d=0; d < metric->GetNumberOfParameters(); d++ )
{
if( std::fabs( derivative[d] - offset[d] ) / offset[d] > 0.01 )
{
std::cerr << "derivative does not match expected offset of " << offset << std::endl;
return EXIT_FAILURE;
}
}
// Check for the same results from different methods
if( itk::Math::NotExactlyEquals(value, value2) )
{
std::cerr << "value does not match between calls to different methods: "
<< "value: " << value << " value2: " << value2 << std::endl;
}
if( derivative != derivative2 )
{
std::cerr << "derivative does not match between calls to different methods: "
<< "derivative: " << derivative << " derivative2: " << derivative2 << std::endl;
}
// dump original fixed point set and transformed by derivative
std::ofstream moving_str1( "sourceMoving.txt" );
std::ofstream moving_str2( "targetMoving.txt" );
count = 0;
moving_str1 << "0 0 0 0" << std::endl;
moving_str2 << "0 0 0 0" << std::endl;
typename PointType::VectorType vector;
for( unsigned int d = 0; d < metric->GetNumberOfParameters(); d++ )
{
vector[d] = derivative[count++];
}
typename PointSetType::PointsContainer::ConstIterator ItM = movingPoints->GetPoints()->Begin();
while( ItM != movingPoints->GetPoints()->End() )
{
PointType sourcePoint = ItM.Value();
PointType targetPoint = sourcePoint + vector;
for( unsigned int d = 0; d < metric->GetNumberOfParameters(); d++ )
{
moving_str1 << sourcePoint[d] << " ";
moving_str2 << targetPoint[d] << " ";
}
if( Dimension < 3 )
{
moving_str1 << "0 ";
moving_str2 << "0 ";
}
moving_str1 << ItM.Index() << std::endl;
moving_str2 << ItM.Index() << std::endl;
++ItM;
}
moving_str1 << "0 0 0 0" << std::endl;
moving_str2 << "0 0 0 0" << std::endl;
return EXIT_SUCCESS;
}
int itkLabeledPointSetMetricTest( int, char* [] )
{
int result = EXIT_SUCCESS;
if( itkLabeledPointSetMetricTestRun<2>() == EXIT_FAILURE )
{
std::cerr << "Failed for Dimension 2." << std::endl;
result = EXIT_FAILURE;
}
if( itkLabeledPointSetMetricTestRun<3>() == EXIT_FAILURE )
{
std::cerr << "Failed for Dimension 3." << std::endl;
result = EXIT_FAILURE;
}
return result;
}
|
