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/*
-----------------------------------------------------------------------
Copyright 2012 iMinds-Vision Lab, University of Antwerp
Contact: astra@ua.ac.be
Website: http://astra.ua.ac.be
This file is part of the
All Scale Tomographic Reconstruction Antwerp Toolbox ("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/>.
-----------------------------------------------------------------------
$Id$
*/
#ifndef _INC_ASTRA_CUDARECONSTRUCTIONALGORITHM2D
#define _INC_ASTRA_CUDARECONSTRUCTIONALGORITHM2D
#include "Globals.h"
#include "Config.h"
#include "ReconstructionAlgorithm2D.h"
#include "Projector2D.h"
#include "Float32ProjectionData2D.h"
#include "Float32VolumeData2D.h"
namespace astraCUDA {
class ReconAlgo;
}
namespace astra {
/**
* This is a base class for the different CUDA implementations of 2D reconstruction algorithms.
* They don't use a Projector, and share GPUIndex and DetectorSuperSampling options.
*
*/
class _AstraExport CCudaReconstructionAlgorithm2D : public CReconstructionAlgorithm2D {
public:
/** Default constructor, containing no code.
*/
CCudaReconstructionAlgorithm2D();
/** Destructor.
*/
virtual ~CCudaReconstructionAlgorithm2D();
/** 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. (Ignored)
* @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);
/** Initialize class.
*
* @param _pProjector Projector Object. (Ignored)
* @param _pSinogram ProjectionData2D object containing the sinogram data.
* @param _pReconstruction VolumeData2D object for storing the reconstructed volume.
* @param _iGPUindex GPU to use.
* @param _iDetectorSuperSampling Supersampling factor for the FP.
* @param _iPixelSuperSampling Square root of number of samples per voxel, used to compute the backprojection
*/
virtual bool initialize(CProjector2D* _pProjector,
CFloat32ProjectionData2D* _pSinogram,
CFloat32VolumeData2D* _pReconstruction,
int _iGPUindex = 0, int _iDetectorSuperSampling = 1,
int _iPixelSuperSampling = 1);
/** Clear this class.
*/
virtual void clear();
/** Get all information parameters.
*
* @return map with all boost::any object
*/
virtual map<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 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);
/**
* Sets the index of the used GPU index: first GPU has index 0
*
* @param _iGPUIndex New GPU index.
*/
void setGPUIndex(int _iGPUIndex);
/** Perform a number of iterations.
*
* @param _iNrIterations amount of iterations to perform.
*/
virtual void run(int _iNrIterations = 0);
virtual void signalAbort();
protected:
/** Check this object.
*
* @return object initialized
*/
bool _check();
/** Initial clearing. Only to be used by constructors.
*/
void _clear();
/** Set up geometry. For internal use only.
*/
bool setupGeometry();
/** The internally used CUDA algorithm object
*/
astraCUDA::ReconAlgo *m_pAlgo;
int m_iDetectorSuperSampling;
int m_iPixelSuperSampling;
int m_iGPUIndex;
bool m_bAlgoInit;
};
// inline functions
inline std::string CCudaReconstructionAlgorithm2D::description() const { return "2D CUDA Reconstruction Algorithm"; };
} // end namespace
#endif
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