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/*
-----------------------------------------------------------------------
Copyright: 2010-2014, iMinds-Vision Lab, University of Antwerp
2014, CWI, Amsterdam
Contact: astra@uantwerpen.be
Website: http://sf.net/projects/astra-toolbox
This file is part of the ASTRA Toolbox.
The ASTRA Toolbox is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
The ASTRA Toolbox is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
-----------------------------------------------------------------------
$Id$
*/
#include "astra/ConvexHullAlgorithm.h"
#include <boost/lexical_cast.hpp>
#include "astra/AstraObjectManager.h"
#include "astra/DataProjectorPolicies.h"
using namespace std;
namespace astra {
#include "astra/Projector2DImpl.inl"
// type of the algorithm, needed to register with CAlgorithmFactory
std::string CConvexHullAlgorithm::type = "ConvexHull";
//----------------------------------------------------------------------------------------
// Constructor
CConvexHullAlgorithm::CConvexHullAlgorithm()
{
_clear();
}
//---------------------------------------------------------------------------------------
// Initialize - C++
CConvexHullAlgorithm::CConvexHullAlgorithm(CProjector2D* _pProjector,
CFloat32ProjectionData2D* _pSinogram,
CFloat32VolumeData2D* _pReconstructionMask)
{
_clear();
initialize(_pProjector, _pSinogram, _pReconstructionMask);
}
//----------------------------------------------------------------------------------------
// Destructor
CConvexHullAlgorithm::~CConvexHullAlgorithm()
{
clear();
}
//---------------------------------------------------------------------------------------
// Clear - Constructors
void CConvexHullAlgorithm::_clear()
{
m_bIsInitialized = false;
m_pProjectionPixelWeight = NULL;
m_pReconstructionMask = NULL;
m_pSinogram = NULL;
m_pProjector = NULL;
m_pDataProjector = NULL;
}
//---------------------------------------------------------------------------------------
// Clear - Public
void CConvexHullAlgorithm::clear()
{
m_bIsInitialized = false;
ASTRA_DELETE(m_pProjectionPixelWeight);
m_pReconstructionMask = NULL;
m_pSinogram = NULL;
m_pProjector = NULL;
ASTRA_DELETE(m_pDataProjector);
}
//----------------------------------------------------------------------------------------
// Check
bool CConvexHullAlgorithm::_check()
{
ASTRA_CONFIG_CHECK(m_pReconstructionMask, "ConvexHull", "Invalid ReconstructionMask Object");
ASTRA_CONFIG_CHECK(m_pReconstructionMask->isInitialized(), "ConvexHull", "Invalid ReconstructionMask Object");
ASTRA_CONFIG_CHECK(m_pProjectionPixelWeight, "ConvexHull", "Invalid ProjectionPixelWeight Object");
ASTRA_CONFIG_CHECK(m_pProjectionPixelWeight->isInitialized(), "ConvexHull", "Invalid ProjectionPixelWeight Object");
ASTRA_CONFIG_CHECK(m_pSinogram, "ConvexHull", "Invalid Sinogram Object");
ASTRA_CONFIG_CHECK(m_pSinogram->isInitialized(), "ConvexHull", "Invalid Sinogram Object");
ASTRA_CONFIG_CHECK(m_pDataProjector, "ConvexHull", "Invalid Data Projector Policy");
ASTRA_CONFIG_CHECK(m_pProjector, "ConvexHull", "Invalid Projector Object");
ASTRA_CONFIG_CHECK(m_pProjector->isInitialized(), "ConvexHull", "Invalid Projector Object");
return true;
}
//---------------------------------------------------------------------------------------
// Initialize - Config
bool CConvexHullAlgorithm::initialize(const Config& _cfg)
{
ASTRA_ASSERT(_cfg.self);
// if already initialized, clear first
if (m_bIsInitialized) {
clear();
}
// projector
XMLNode* node = _cfg.self->getSingleNode("ProjectorId");
ASTRA_CONFIG_CHECK(node, "ConvexHull", "No ProjectorId tag specified.");
int id = boost::lexical_cast<int>(node->getContent());
m_pProjector = CProjector2DManager::getSingleton().get(id);
ASTRA_DELETE(node);
// sinogram data
node = _cfg.self->getSingleNode("ProjectionDataId");
ASTRA_CONFIG_CHECK(node, "ConvexHull", "No ProjectionDataId tag specified.");
id = boost::lexical_cast<int>(node->getContent());
m_pSinogram = dynamic_cast<CFloat32ProjectionData2D*>(CData2DManager::getSingleton().get(id));
ASTRA_DELETE(node);
// reconstruction mask
node = _cfg.self->getSingleNode("ConvexHullDataId");
ASTRA_CONFIG_CHECK(node, "ConvexHull", "No ReconstructionDataId tag specified.");
id = boost::lexical_cast<int>(node->getContent());
m_pReconstructionMask = dynamic_cast<CFloat32VolumeData2D*>(CData2DManager::getSingleton().get(id));
ASTRA_DELETE(node);
// init data objects and data projectors
_init();
// success
m_bIsInitialized = _check();
return m_bIsInitialized;
}
//---------------------------------------------------------------------------------------
// Initialize - C++
bool CConvexHullAlgorithm::initialize(CProjector2D* _pProjector,
CFloat32ProjectionData2D* _pSinogram,
CFloat32VolumeData2D* _pReconstructionMask)
{
// if already initialized, clear first
if (m_bIsInitialized) {
clear();
}
// required classes
m_pProjector = _pProjector;
m_pSinogram = _pSinogram;
m_pReconstructionMask = _pReconstructionMask;
// init data objects and data projectors
_init();
// success
m_bIsInitialized = _check();
return m_bIsInitialized;
}
//---------------------------------------------------------------------------------------
// Initialize Data Projectors - private
void CConvexHullAlgorithm::_init()
{
// create data objects
m_pProjectionPixelWeight = new CFloat32VolumeData2D(m_pProjector->getVolumeGeometry());
m_pProjectionPixelWeight->setData(0);
// forward projection data projector
m_pDataProjector = dispatchDataProjector(
m_pProjector,
//SinogramMaskPolicy(m_pSinogramMask), // sinogram mask
TotalPixelWeightBySinogramPolicy(m_pSinogram, m_pProjectionPixelWeight) // pixel weight * sinogram
);
}
//---------------------------------------------------------------------------------------
// Information - All
map<string,boost::any> CConvexHullAlgorithm::getInformation()
{
map<string, boost::any> res;
return mergeMap<string,boost::any>(CAlgorithm::getInformation(), res);
};
//---------------------------------------------------------------------------------------
// Information - Specific
boost::any CConvexHullAlgorithm::getInformation(std::string _sIdentifier)
{
return CAlgorithm::getInformation(_sIdentifier);
};
//----------------------------------------------------------------------------------------
// Iterate
void CConvexHullAlgorithm::run(int _iNrIterations)
{
// check initialized
ASTRA_ASSERT(m_bIsInitialized);
m_pReconstructionMask->setData(1.0f);
// loop angles
for (int iProjection = 0; iProjection < m_pProjector->getProjectionGeometry()->getProjectionAngleCount(); ++iProjection) {
m_pProjectionPixelWeight->setData(0.0f);
// project
m_pDataProjector->projectSingleProjection(iProjection);
// loop values and set to zero
for (int iPixel = 0; iPixel < m_pReconstructionMask->getSize(); ++iPixel) {
if (m_pProjectionPixelWeight->getData()[iPixel] == 0) {
m_pReconstructionMask->getData()[iPixel] = 0;
}
}
}
}
//----------------------------------------------------------------------------------------
} // namespace astra
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