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Example: Lung segmentation
Erik Smistad edited this page Feb 16, 2017
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1 revision
The LungSegmentation algorithm segments both the lungs and airways from a CT volume. This example also extracts the surfaces of these segmentations and display the surface meshes using the MeshRenderer.
/**
* Examples/Segmentation/lungSegmentation.cpp
*
* If you edit this example, please also update the wiki and source code file in the repository.
*/
#include "FAST/Importers/ImageFileImporter.hpp"
#include "FAST/Visualization/ImageRenderer/ImageRenderer.hpp"
#include "FAST/Visualization/SegmentationRenderer/SegmentationRenderer.hpp"
#include "FAST/Visualization/MeshRenderer/MeshRenderer.hpp"
#include "FAST/Visualization/SimpleWindow.hpp"
#include "FAST/Algorithms/SurfaceExtraction/SurfaceExtraction.hpp"
#include "FAST/Algorithms/LungSegmentation/LungSegmentation.hpp"
using namespace fast;
int main() {
// Import image from file using the ImageFileImporter
ImageFileImporter::pointer importer = ImageFileImporter::New();
importer->setFilename(Config::getTestDataPath()+"CT/CT-Thorax.mhd");
// Perform lung segmentation (this will also extract the airways using AirwaySegmentation)
LungSegmentation::pointer segmentation = LungSegmentation::New();
segmentation->setInputConnection(importer->getOutputPort());
// Extract lung surface
SurfaceExtraction::pointer extraction = SurfaceExtraction::New();
extraction->setInputConnection(segmentation->getOutputPort());
// Extract airway surface
SurfaceExtraction::pointer extraction2 = SurfaceExtraction::New();
extraction2->setInputConnection(segmentation->getOutputPort(1));
// Render both surfaces with different color
MeshRenderer::pointer meshRenderer = MeshRenderer::New();
meshRenderer->addInputConnection(extraction->getOutputPort(), Color::Green(), 0.6f);
meshRenderer->addInputConnection(extraction2->getOutputPort(), Color::Red(), 1.0f);
SimpleWindow::pointer window = SimpleWindow::New();
window->addRenderer(meshRenderer);
#ifdef FAST_CONTINUOUS_INTEGRATION
// This will automatically close the window after 5 seconds, used for CI testing
window->setTimeout(5*1000);
#endif
window->start();
}
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