Skip to content
GitLab
Commit 2acb7af0 authored by Christian Schulte zu Berge's avatar Christian Schulte zu Berge
Browse files

further clean up in SimilarityMeasure

parent a47bfa91
Hide whitespace changes
Inline Side-by-side
modules/registration/processors/similaritymeasure.cpp
View file @ 2acb7af0
......@@ -80,7 +80,7 @@ namespace campvis {
, p_computeDifferenceImage("ComputeDifferenceImage", "Compute Difference Image", AbstractProcessor::INVALID_RESULT | COMPUTE_DIFFERENCE_IMAGE)
, p_forceStop("Force Stop", "Force Stop", AbstractProcessor::VALID)
, _sadssdCostFunctionShader(0)
, _nccCostFunctionShader(0)
, _nccsnrCostFunctionShader(0)
, _differenceShader(0)
, _glr(0)
, _opt(0)
......@@ -120,9 +120,9 @@ namespace campvis {
_sadssdCostFunctionShader->setAttributeLocation(0, "in_Position");
_sadssdCostFunctionShader->setAttributeLocation(1, "in_TexCoord");
_nccCostFunctionShader = ShdrMgr.loadSeparate("core/glsl/passthrough.vert", "modules/registration/glsl/similaritymeasurencc.frag", "", false);
_nccCostFunctionShader->setAttributeLocation(0, "in_Position");
_nccCostFunctionShader->setAttributeLocation(1, "in_TexCoord");
_nccsnrCostFunctionShader = ShdrMgr.loadSeparate("core/glsl/passthrough.vert", "modules/registration/glsl/similaritymeasurenccsnr.frag", "", false);
_nccsnrCostFunctionShader->setAttributeLocation(0, "in_Position");
_nccsnrCostFunctionShader->setAttributeLocation(1, "in_TexCoord");
_differenceShader = ShdrMgr.loadSeparate("core/glsl/passthrough.vert", "modules/registration/glsl/differenceimage.frag", "", false);
_differenceShader->setAttributeLocation(0, "in_Position");
......@@ -132,9 +132,8 @@ namespace campvis {
}
void SimilarityMeasure::deinit() {
VisualizationProcessor::deinit();
ShdrMgr.dispose(_sadssdCostFunctionShader);
ShdrMgr.dispose(_nccCostFunctionShader);
ShdrMgr.dispose(_nccsnrCostFunctionShader);
ShdrMgr.dispose(_differenceShader);
delete _glr;
......@@ -142,6 +141,8 @@ namespace campvis {
delete _opt;
_opt = 0;
VisualizationProcessor::deinit();
}
void SimilarityMeasure::process(DataContainer& data) {
......@@ -187,6 +188,11 @@ namespace campvis {
tgtAssert(referenceImage != 0, "Reference Image must not be 0.");
tgtAssert(movingImage != 0, "Moving Image must not be 0.");
if (_opt != 0) {
LWARNING("Optimization is already running...");
return;
}
MyFuncData_t mfd = { this, referenceImage, movingImage, 0 };
_opt = new nlopt::opt(p_optimizer.getOptionValue(), 6);
......@@ -216,7 +222,6 @@ namespace campvis {
_opt->set_initial_step(stepSize);
double minf;
nlopt::result result = nlopt::SUCCESS;
try {
result = _opt->optimize(x, minf);
......@@ -259,7 +264,7 @@ namespace campvis {
similarityTex2 = new tgt::Texture(0, tgt::ivec3(p_viewportSize.getValue(), 1), GL_RGBA, GL_RGBA32F, GL_FLOAT, tgt::Texture::NEAREST);
similarityTex2->uploadTexture();
similarityTex2->setWrapping(tgt::Texture::CLAMP);
leShader = _nccCostFunctionShader;
leShader = _nccsnrCostFunctionShader;
}
// activate FBO and attach texture
......
modules/registration/processors/similaritymeasure.h
View file @ 2acb7af0
......@@ -64,8 +64,8 @@ namespace campvis {
class SimilarityMeasure : public VisualizationProcessor {
public:
enum AdditionalInvalidationLevels {
PERFORM_OPTIMIZATION = 1U << 6,
COMPUTE_DIFFERENCE_IMAGE = 1U << 7
PERFORM_OPTIMIZATION = FIRST_FREE_TO_USE_INVALIDATION_LEVEL << 0,
COMPUTE_DIFFERENCE_IMAGE = FIRST_FREE_TO_USE_INVALIDATION_LEVEL << 1
};
/**
......@@ -86,7 +86,7 @@ namespace campvis {
/// \see AbstractProcessor::getName()
virtual const std::string getName() const { return "SimilarityMeasure"; };
/// \see AbstractProcessor::getDescription()
virtual const std::string getDescription() const { return "Extracts a single slice from the input image and renders it using a transfer function."; };
virtual const std::string getDescription() const { return "Computes a Similarity Measure using OpenGL."; };
/// \see AbstractProcessor::getAuthor()
virtual const std::string getAuthor() const { return "Christian Schulte zu Berge <christian.szb@in.tum.de>"; };
/// \see AbstractProcessor::getProcessorState()
......@@ -102,21 +102,22 @@ namespace campvis {
IVec2Property p_clipY; ///< clip coordinates for y axis
IVec2Property p_clipZ; ///< clip coordinates for z axis
BoolProperty p_applyMask;
BoolProperty p_applyMask; ///< Flag whether use reference image as mask
Vec3Property p_translation; ///< Moving image translation
Vec3Property p_rotation; ///< Moving image rotation
GenericOptionProperty<std::string> p_metric;
ButtonProperty p_computeSimilarity;
GenericOptionProperty<std::string> p_metric; ///< Similarity metric
ButtonProperty p_computeSimilarity; ///< Compute similarity
DataNameProperty p_differenceImageId;
ButtonProperty p_computeDifferenceImage;
DataNameProperty p_differenceImageId; ///< Image ID for difference Image
ButtonProperty p_computeDifferenceImage; ///< Generate Difference Image
GenericOptionProperty<nlopt::algorithm> p_optimizer;
ButtonProperty p_performOptimization;
ButtonProperty p_forceStop;
GenericOptionProperty<nlopt::algorithm> p_optimizer; ///< Optimizer Algorithm
ButtonProperty p_performOptimization; ///< Start Optimization
ButtonProperty p_forceStop; ///< Stop Optimization
private:
/// Auxiliary data structure for nlopt
struct MyFuncData_t {
SimilarityMeasure* _object;
const ImageRepresentationGL* _reference;
......@@ -127,25 +128,63 @@ namespace campvis {
/// \see AbstractProcessor::updateProperties
void updateProperties(DataContainer& dc);
/**
* Perform optimization to register \a movingImage to \a referenceImage.
* \param referenceImage Reference Image
* \param movingImage Moving Image
*/
void performOptimization(const ImageRepresentationGL* referenceImage, const ImageRepresentationGL* movingImage);
/**
* Stop the Optimization process.
*/
void forceStop();
/**
* Computes the similarity between \a movingImage and \a referenceImage using the given
* translation and rotation and currently selected similarity metric.
* \param referenceImage Reference Image
* \param movingImage Moving Image
* \param translation Translation to apply to \a movingImage
* \param rotation Rotation to apply to \a movingImage
* \return The similarity
*/
float computeSimilarity(const ImageRepresentationGL* referenceImage, const ImageRepresentationGL* movingImage, const tgt::vec3& translation, const tgt::vec3& rotation);
/**
* Computes the difference image between \a movingImage and \a referenceImage using the given
* translation and rotation.
* \param dc DataContainer to store the difference image in
* \param referenceImage Reference Image
* \param movingImage Moving Image
* \param translation Translation to apply to \a movingImage
* \param rotation Rotation to apply to \a movingImage
*/
void generateDifferenceImage(DataContainer* dc, const ImageRepresentationGL* referenceImage, const ImageRepresentationGL* movingImage, const tgt::vec3& translation, const tgt::vec3& rotation);
/**
* Transforms euler angles to a 4x4 rotation matrix.
* \param eulerAngles A vec3 with euler angles
* \return The corresponding 4x4 rotation matrix.
*/
static tgt::mat4 euleranglesToMat4(const tgt::vec3& eulerAngles);
/**
* Free function to be called by nlopt optimizer computing the similarity.
* \param x Optimization vector
* \param grad Gradient vector (currently ignored!)
* \param my_func_data Auxiliary data structure0
* \return Result of the cost function.
*/
static double optimizerFunc(const std::vector<double>& x, std::vector<double>& grad, void* my_func_data);
IVec2Property p_viewportSize;
tgt::Shader* _sadssdCostFunctionShader; ///< Shader for computing SAD/SSD
tgt::Shader* _nccCostFunctionShader; ///< Shader for computing NCC
tgt::Shader* _nccsnrCostFunctionShader; ///< Shader for computing NCC/SNR
tgt::Shader* _differenceShader; ///< Shader for computing the difference image
GlReduction* _glr;
nlopt::opt* _opt;
GlReduction* _glr; ///< Pointer to GlReduction object
nlopt::opt* _opt; ///< Pointer to nlopt Optimizer object
static const std::string loggerCat_;
};
......
Supports Markdown
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment

LRZ Homepage | Datenschutz | Dokumentation und Betriebsbedingungen | Impressum