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
|
/*=========================================================================
*
* 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 <SimpleITK.h>
#include <memory>
#include "sitkTransformCompare.h"
#include "sitkTransformToDisplacementFieldFilter.h"
TransformCompare::TransformCompare()
: m_Tolerance(0.0)
{
}
bool TransformCompare::Compare( const itk::simple::Transform &transform,
const itk::simple::Transform &baselineTransform,
const itk::simple::Image &fixedImage )
{
namespace sitk = itk::simple;
sitk::TransformToDisplacementFieldFilter toDisplacementField;
toDisplacementField.SetOutputPixelType( sitk::sitkVectorFloat64 );
toDisplacementField.SetReferenceImage( fixedImage );
sitk::Image baselineDisplacement = toDisplacementField.Execute( baselineTransform );
return this->Compare( transform, baselineDisplacement );
}
bool TransformCompare::Compare( const itk::simple::Transform &transform,
const itk::simple::Image &baselineDisplacement )
{
namespace sitk = itk::simple;
sitk::TransformToDisplacementFieldFilter toDisplacementField;
toDisplacementField.SetOutputPixelType( baselineDisplacement.GetPixelID() );
toDisplacementField.SetReferenceImage( baselineDisplacement );
sitk::Image displacement = toDisplacementField.Execute( transform );
sitk::Image diff = sitk::Subtract( displacement, baselineDisplacement );
diff = sitk::VectorMagnitude(diff);
diff = sitk::Multiply(diff, diff);
sitk::StatisticsImageFilter stats;
stats.Execute ( diff );
double rms = std::sqrt ( stats.GetMean() );
std::cout << "<DartMeasurement name=\"RMSDifference\" type=\"numeric/float\">" << rms << "</DartMeasurement>" << std::endl;
if ( rms > m_Tolerance )
{
std::ostringstream msg;
msg << "TransformCompare: transformed image points Root Mean Square (RMS) difference was " << rms << " which exceeds the tolerance of " << m_Tolerance;
msg << "\n";
m_Message = msg.str();
std::cout << "<DartMeasurement name=\"Tolerance\" type=\"numeric/float\">" << m_Tolerance << "</DartMeasurement>" << std::endl;
return false;
}
return true;
}
|
