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
|
/*=========================================================================
Program: VMTK
Module: $RCSfile: vtkvmtkFastMarchingUpwindGradientImageFilter.cxx,v $
Language: C++
Date: $Date: 2006/04/06 16:48:25 $
Version: $Revision: 1.1 $
Copyright (c) Luca Antiga, David Steinman. All rights reserved.
See LICENCE file for details.
Portions of this code are covered under the VTK copyright.
See VTKCopyright.txt or http://www.kitware.com/VTKCopyright.htm
for details.
Portions of this code are covered under the ITK copyright.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm
for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "vtkvmtkFastMarchingUpwindGradientImageFilter.h"
#include "vtkObjectFactory.h"
#include "vtkvmtkITKFilterUtilities.h"
#include "itkFastMarchingUpwindGradientImageFilter.h"
vtkStandardNewMacro(vtkvmtkFastMarchingUpwindGradientImageFilter);
vtkvmtkFastMarchingUpwindGradientImageFilter::vtkvmtkFastMarchingUpwindGradientImageFilter()
{
this->GenerateGradientImage = 0;
this->TargetReachedMode = ONE_TARGET;
this->TargetValue = 0.0;
this->TargetOffset = 0.0;
this->Seeds = NULL;
this->Targets = NULL;
}
vtkvmtkFastMarchingUpwindGradientImageFilter::~vtkvmtkFastMarchingUpwindGradientImageFilter()
{
if (this->Seeds)
{
this->Seeds->Delete();
this->Seeds = NULL;
}
if (this->Targets)
{
this->Targets->Delete();
this->Targets = NULL;
}
}
void vtkvmtkFastMarchingUpwindGradientImageFilter::SimpleExecute(vtkImageData* input, vtkImageData* output)
{
typedef itk::Image<float,3> ImageType;
ImageType::Pointer inImage = ImageType::New();
vtkvmtkITKFilterUtilities::VTKToITKImage<ImageType>(input,inImage);
typedef itk::FastMarchingUpwindGradientImageFilter<ImageType,ImageType> FastMarchingFilterType;
FastMarchingFilterType::Pointer fastMarchingFilter = FastMarchingFilterType::New();
fastMarchingFilter->SetInput(inImage);
fastMarchingFilter->SetGenerateGradientImage(this->GenerateGradientImage);
fastMarchingFilter->SetTargetOffset(this->TargetOffset);
if (this->TargetReachedMode == ONE_TARGET)
{
fastMarchingFilter->SetTargetReachedMode(FastMarchingFilterType::OneTarget);
}
else
{
fastMarchingFilter->SetTargetReachedMode(FastMarchingFilterType::AllTargets);
}
FastMarchingFilterType::NodeContainerPointer seeds = FastMarchingFilterType::NodeContainer::New();
int i;
for (i=0; i<this->Seeds->GetNumberOfIds(); i++)
{
// TODO: here we get the point. We should get the cell center instead.
ImageType::PointType seedPoint(input->GetPoint(this->Seeds->GetId(i)));
FastMarchingFilterType::NodeType::IndexType seedIndex;
inImage->TransformPhysicalPointToIndex(seedPoint,seedIndex);
FastMarchingFilterType::PixelType seedValue = itk::NumericTraits<FastMarchingFilterType::PixelType>::Zero;
FastMarchingFilterType::NodeType seed;
seed.SetValue(seedValue);
seed.SetIndex(seedIndex);
seeds->InsertElement(i,seed);
}
fastMarchingFilter->SetTrialPoints(seeds);
FastMarchingFilterType::NodeContainerPointer targets = FastMarchingFilterType::NodeContainer::New();
for (i=0; i<this->Targets->GetNumberOfIds(); i++)
{
// TODO: here we get the point. We should get the cell center instead.
ImageType::PointType seedPoint(input->GetPoint(this->Targets->GetId(i)));
FastMarchingFilterType::NodeType::IndexType seedIndex;
inImage->TransformPhysicalPointToIndex(seedPoint,seedIndex);
FastMarchingFilterType::PixelType seedValue = itk::NumericTraits<FastMarchingFilterType::PixelType>::Zero;
FastMarchingFilterType::NodeType seed;
seed.SetValue(seedValue);
seed.SetIndex(seedIndex);
targets->InsertElement(i,seed);
}
fastMarchingFilter->SetTargetPoints(targets);
fastMarchingFilter->Update();
this->TargetValue = fastMarchingFilter->GetTargetValue();
vtkvmtkITKFilterUtilities::ITKToVTKImage<ImageType>(fastMarchingFilter->GetOutput(),output);
}
|
