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Diffstat (limited to 'include/astra/CudaReconstructionAlgorithm2D.h')
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diff --git a/include/astra/CudaReconstructionAlgorithm2D.h b/include/astra/CudaReconstructionAlgorithm2D.h new file mode 100644 index 0000000..88fc344 --- /dev/null +++ b/include/astra/CudaReconstructionAlgorithm2D.h @@ -0,0 +1,176 @@ +/* +----------------------------------------------------------------------- +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 |