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/*
-----------------------------------------------------------------------
Copyright: 2010-2021, imec Vision Lab, University of Antwerp
2014-2021, CWI, Amsterdam
Contact: astra@astra-toolbox.com
Website: http://www.astra-toolbox.com/
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/>.
-----------------------------------------------------------------------
*/
#ifndef _INC_ASTRA_RECONSTRUCTIONALGORITHM2D
#define _INC_ASTRA_RECONSTRUCTIONALGORITHM2D
#include "Globals.h"
#include "Config.h"
#include "Algorithm.h"
#include "Projector2D.h"
#include "Float32ProjectionData2D.h"
#include "Float32VolumeData2D.h"
namespace astra {
/**
* This is a base class for the different implementations of 2D reconstruction algorithms.
*
* \par XML Configuration
* \astra_xml_item{ProjectorId, integer, Identifier of a projector as it is stored in the ProjectorManager.}
* \astra_xml_item{ProjectionDataId, integer, Identifier of a projection data object as it is stored in the DataManager.}
* \astra_xml_item{ReconstructionDataId, integer, Identifier of a volume data object as it is stored in the DataManager.}
* \astra_xml_item_option{ReconstructionMaskId, integer, not used, Identifier of a volume data object that acts as a reconstruction mask. 1 = reconstruct on this pixel. 0 = don't reconstruct on this pixel.}
* \astra_xml_item_option{SinogramMaskId, integer, not used, Identifier of a projection data object that acts as a projection mask. 1 = reconstruct using this ray. 0 = don't use this ray while reconstructing.}
* \astra_xml_item_option{UseMinConstraint, bool, false, Use minimum value constraint.}
* \astra_xml_item_option{MinConstraintValue, float, 0, Minimum constraint value.}
* \astra_xml_item_option{UseMaxConstraint, bool, false, Use maximum value constraint.}
* \astra_xml_item_option{MaxConstraintValue, float, 255, Maximum constraint value.}
*/
class _AstraExport CReconstructionAlgorithm2D : public CAlgorithm {
public:
/** Default constructor, containing no code.
*/
CReconstructionAlgorithm2D();
/** Destructor.
*/
virtual ~CReconstructionAlgorithm2D();
/** Initialize the algorithm with a config object.
*
* @param _cfg Configuration Object
* @return initialization successful?
*/
virtual bool initialize(const Config& _cfg);
/** Initialize class.
*
* @param _pProjector Projector Object.
* @param _pSinogram ProjectionData2D object containing the sinogram data.
* @param _pReconstruction VolumeData2D object for storing the reconstructed volume.
*/
bool initialize(CProjector2D* _pProjector,
CFloat32ProjectionData2D* _pSinogram,
CFloat32VolumeData2D* _pReconstruction);
/** Clear this class.
*/
virtual void clear();
/** Add a min/max constraint to the reconstruction process
*
* @param _bUseMin True if the algorithm should use a min constraint.
* @param _fMinValue Lower value to clip pixel values to.
* @param _bUseMax True if the algorithm should use a max constraint.
* @param _fMaxValue Upper value to clip pixel values to.
*/
void setConstraints(bool _bUseMin, float32 _fMinValue, bool _bUseMax, float32 _fMaxValue);
/** Set a fixed reconstruction mask. A pixel will only be used in the reconstruction if the
* corresponding value in the mask is 1.
*
* @param _pMask Volume Data object containing fixed reconstruction mask
* @param _bEnable enable the use of this mask
*/
void setReconstructionMask(CFloat32VolumeData2D* _pMask, bool _bEnable = true);
/** Set a fixed sinogram mask. A detector value will only be used in the reconstruction if the
* corresponding value in the mask is 1.
*
* @param _pMask Projection Data object containing fixed sinogram mask
* @param _bEnable enable the use of this mask
*/
void setSinogramMask(CFloat32ProjectionData2D* _pMask, bool _bEnable = true);
/** Get all information parameters.
*
* @return map with all boost::any object
*/
virtual std::map<std::string,boost::any> getInformation();
/** Get a single piece of information.
*
* @param _sIdentifier identifier string to specify which piece of information you want
* @return boost::any object
*/
virtual boost::any getInformation(std::string _sIdentifier);
/** Get projector object
*
* @return projector
*/
CProjector2D* getProjector() const;
/** Get sinogram data object
*
* @return sinogram data object
*/
CFloat32ProjectionData2D* getSinogram() const;
/** Get Reconstructed Data
*
* @return reconstruction
*/
CFloat32VolumeData2D* getReconstruction() const;
/** Get Fixed Reconstruction Mask
*
* @return fixed reconstruction mask
*/
CFloat32VolumeData2D* getReconstructionMask() const;
/** Perform a number of iterations.
*
* @param _iNrIterations amount of iterations to perform.
*/
virtual void run(int _iNrIterations = 0) = 0;
/** Get a description of the class.
*
* @return description string
*/
virtual std::string description() const;
/** Get the norm of the residual image.
* Only a few algorithms support this method.
*
* @param _fNorm if supported, the norm is returned here
* @return true if this operation is supported
*/
virtual bool getResidualNorm(float32& _fNorm) { return false; }
protected:
/** Check this object.
*
* @return object initialized
*/
bool _check();
/** Initial clearing. Only to be used by constructors.
*/
void _clear();
//< Projector object.
CProjector2D* m_pProjector;
//< ProjectionData2D object containing the sinogram.
CFloat32ProjectionData2D* m_pSinogram;
//< VolumeData2D object for storing the reconstruction volume.
CFloat32VolumeData2D* m_pReconstruction;
//< Use minimum value constraint?
bool m_bUseMinConstraint;
//< Minimum value constraint.
float32 m_fMinValue;
//< Use maximum value constraint?
bool m_bUseMaxConstraint;
//< Maximum value constraint.
float32 m_fMaxValue;
//< Dataobject containing fixed reconstruction mask (0 = don't reconstruct)
CFloat32VolumeData2D* m_pReconstructionMask;
//< Use the fixed reconstruction mask?
bool m_bUseReconstructionMask;
//< Dataobject containing fixed reconstruction mask (0 = don't reconstruct)
CFloat32ProjectionData2D* m_pSinogramMask;
//< Use the fixed reconstruction mask?
bool m_bUseSinogramMask;
//< Specify if initialize/check should check for a valid Projector
virtual bool requiresProjector() const { return true; }
};
// inline functions
inline std::string CReconstructionAlgorithm2D::description() const { return "3D Reconstruction Algorithm"; };
inline CProjector2D* CReconstructionAlgorithm2D::getProjector() const { return m_pProjector; }
inline CFloat32ProjectionData2D* CReconstructionAlgorithm2D::getSinogram() const { return m_pSinogram; }
inline CFloat32VolumeData2D* CReconstructionAlgorithm2D::getReconstruction() const { return m_pReconstruction; }
inline CFloat32VolumeData2D* CReconstructionAlgorithm2D::getReconstructionMask() const { return m_pReconstructionMask; }
} // end namespace
#endif
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