三维重建学习记录2-将CT数据集转化为三维模型软件：VS2017+VTK8.2 先上代码：
1#define vtkRenderingCore_AUTOINIT 3(vtkInteractionStyle,vtkRenderingFreeType,vtkRenderingOpenGL2)
2#define vtkRenderingVolume_AUTOINIT 1(vtkRenderingVolumeOpenGL2)
3 #include "vtkDICOMImageReader.h"
4 #include "vtkRenderWindowInteractor.h"
5 #include "vtkRenderer.h"
6 #include "vtkRenderWindow.h"
7 #include "vtkMarchingCubes.h"
8 #include "vtkStripper.h"
蓝牙定位系统9 #include "vtkActor.h"
10 #include "vtkPolyDataMapper.h"
11 #include "vtkProperty.h"
12 #include "vtkCamera.h"
13 #include "vtkBoxWidget.h"
14 #include "vtkSmartPointer.h"
15 #include "vtkTriangleFilter.h"
16 #include "vtkMassProperties.h"
17 #include "vtkSmoothPolyDataFilter.h"
18 #include "vtkPolyDataNormals.h"
19 #include "vtkContourFilter.h"
20 #include "vtkRecursiveDividingCubes.h"
21 #include "vtkSTLWriter.h"
22
23int main(int argc, char* argv[])
24 {
25 std::string filename = "out_Smooth.stl";//设置输出⽂件路径 26
简易淋浴器
27//读取⼆维切⽚数据序列
28 vtkSmartPointer< vtkDICOMImageReader >reader =
29 vtkSmartPointer< vtkDICOMImageReader >::New();
30 reader->SetDataByteOrderToLittleEndian();
31 reader->SetDirectoryName("E://dicomimage");//设置读取路径
32
33 reader->SetDataSpacing(1.0, 1.0, 1.0);//设置每个体素的⼤⼩
34 reader->Update();
35
36
38//MC算法
39 vtkSmartPointer< vtkMarchingCubes > boneExtractor =
40 vtkSmartPointer< vtkMarchingCubes >::New();
41 boneExtractor->SetInputConnection(reader->GetOutputPort());
42 boneExtractor->SetValue(0, 400); //设置提取的等值信息
43 boneExtractor->Update();
44
45
46//利⽤ContourFilter提取等值⾯
47/*vtkSmartPointer< vtkContourFilter > boneExtractor =
48 vtkSmartPointer< vtkContourFilter >::New();
49 boneExtractor->SetInputConnection(reader->GetOutputPort());
50 boneExtractor->SetValue(0, 200); //设置提取的等值信息
51 boneExtractor->Update();*/
52
53//DC算法耗时长，模型有明显缝隙
54/*vtkSmartPointer< vtkRecursiveDividingCubes > boneExtractor =
55 vtkSmartPointer< vtkRecursiveDividingCubes >::New();
56 boneExtractor->SetInputConnection(reader->GetOutputPort());
57 boneExtractor->SetValue(500);
58 boneExtractor->SetDistance(1);
59 boneExtractor->SetIncrement(2);
60 boneExtractor->Update();*/
61
62
63
64//剔除旧的或废除的数据单元，提⾼绘制速度(可略去这⼀步) 65 vtkSmartPointer< vtkStripper > boneStripper =
66 vtkSmartPointer< vtkStripper >::New(); //三⾓带连接
67 boneStripper->SetInputConnection(boneExtractor->GetOutputPort());
68 boneStripper->Update();
69
70//平滑滤波
71 vtkSmartPointer<vtkSmoothPolyDataFilter> pSmoothPolyDataFilter = vtkSmartPointer<vtkSmoothPolyDataFilter>::New();
72 pSmoothPolyDataFilter->SetInputConnection(boneStripper->GetOutputPort());
73//pSmoothPolyDataFilter->SetNumberOfIterations(m_nNumberOfIterations);
74 pSmoothPolyDataFilter->SetRelaxationFactor(0.05);
75
76 vtkSmartPointer<vtkPolyDataNormals> pPolyDataNormals = vtkSmartPointer<vtkPolyDataNormals>::New();耳塞棉
77 pPolyDataNormals->SetInputConnection(pSmoothPolyDataFilter->GetOutputPort());
78//pPolyDataNormals->SetFeatureAngle(m_nFeatureAngle);
79
80
81//将模型输出到⼊STL⽂件
82 vtkSmartPointer<vtkSTLWriter> stlWriter =
83 vtkSmartPointer<vtkSTLWriter>::New();
84 stlWriter->SetFileName(filename.c_str());
85 stlWriter->SetInputConnection(pPolyDataNormals->GetOutputPort());橄榄采摘机
飞盘制作
86 stlWriter->Write();
87
88
89//建⽴映射
90 vtkSmartPointer< vtkPolyDataMapper > boneMapper =
91 vtkSmartPointer< vtkPolyDataMapper >::New();
92 boneMapper->SetInputData(pPolyDataNormals->GetOutput());
93 boneMapper->ScalarVisibilityOff();
94//建⽴⾓⾊
95 vtkSmartPointer< vtkActor > bone =
96 vtkSmartPointer< vtkActor >::New();
97 bone->SetMapper(boneMapper);
98
99 bone->GetProperty()->SetDiffuseColor(1.0, 1.0, 1.0);
100 bone->GetProperty()->SetSpecular(.3);
101 bone->GetProperty()->SetSpecularPower(20);
102
103//定义绘制器
104 vtkSmartPointer< vtkRenderer > aRenderer =
105 vtkSmartPointer< vtkRenderer >::New();
106//定义绘制窗⼝
107 vtkSmartPointer< vtkRenderWindow > renWin =
108 vtkSmartPointer< vtkRenderWindow >::New();
109 renWin->AddRenderer(aRenderer);
110//定义窗⼝交互器
111 vtkSmartPointer< vtkRenderWindowInteractor > iren =
112 vtkSmartPointer< vtkRenderWindowInteractor >::New();
113 iren->SetRenderWindow(renWin);
114液化气燃烧器
115//创建⼀个camera
116 vtkSmartPointer< vtkCamera > aCamera =
117 vtkSmartPointer< vtkCamera >::New();
118 aCamera->SetViewUp(0, 0, -1);
119 aCamera->SetPosition(0, 1, 0);
120 aCamera->SetFocalPoint(0, 0, 0);
121
122 aRenderer->AddActor(bone);
123 aRenderer->SetActiveCamera(aCamera);
124 aRenderer->ResetCamera();
125 aCamera->Dolly(1.5);
126 aRenderer->SetBackground(0, 0, 0);
127 aRenderer->ResetCameraClippingRange();
128
129//将3D模型渲染到绘制窗⼝
130 iren->Initialize();
131 iren->Start();
132
133return0;
134 }
View Code
注：运⾏后笔记本要等⼏分钟，等待渲染完成。运⾏时内存和CPU实时曲线⼀直在变。⽽且路径⾥的⽂件要全部是满⾜要求的CT图，不然会报错。
效果图：（显⽰的是断⾻CT图重建效果）
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